RACOM RAy3 User Manual

User manual
www.racom.eu
Tel.:+420565659511•Fax:+420565659512•E-mail: racom@racom.eu

RAy3 Microwave Link

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fw 1.0.x.x
11/15/2018 version 1.0

Table of Contents

Important Notice .................................................................................................................................. 7
Quick guide ......................................................................................................................................... 8
List of documentation ........................................................................................................................ 13
1. Product .......................................................................................................................................... 14
1.1. Main characteristics ............................................................................................................ 14
1.2. Mechanical interfaces ......................................................................................................... 15
1.2.1. Antenna waveguide ................................................................................................. 15
1.2.2. Unit mounting .......................................................................................................... 15
1.2.3. Grounding screw ..................................................................................................... 16
1.3. User interfaces ................................................................................................................... 17
1.3.1. RJ45 ( ETH1+POE ) ................................................................................................ 18
1.3.2. SFP slot ( ETH2 ) .................................................................................................... 19
1.3.3. DC power ( ETH1+POE ) ........................................................................................ 19
1.4. Service interfaces ............................................................................................................... 21
1.4.1. USB connector ( S ) ................................................................................................. 21
1.4.2. Service WiFi ( USB „S“) ........................................................................................... 21
1.4.3. Service Ethernet ( USB „S“) .................................................................................... 21
1.4.4. RSS voltage ( S ) ..................................................................................................... 22
1.4.5. HW button ( S ) ........................................................................................................ 22
1.5. Status LED ( S ) ................................................................................................................. 23
1.6. Basic technical parameters ................................................................................................ 24
1.6.1. Communication unit RAy3-24 .................................................................................. 24
1.6.2. Diameters of supplied antennas .............................................................................. 24
1.6.3. Production label ....................................................................................................... 25
1.7. Ordering codes ................................................................................................................... 26
1.7.1. Ordering codes for HW units ................................................................................... 26
1.7.2. Ordering codes for Capacity feature keys ............................................................... 26
1.7.3. Ordering codes for other feature keys ..................................................................... 29
2. Accessories ................................................................................................................................... 30
2.1. Overview ........................................................................................................................... 30
2.2. Details ................................................................................................................................ 33
3. Step-by-step Guide ....................................................................................................................... 41
3.1. Service access ................................................................................................................... 44
3.1.1. Choosing right band according the country of use .................................................. 45
3.1.2. Setting units name and location .............................................................................. 46
3.1.3. Setting Ethernet access parameters ....................................................................... 47
3.1.4. Creation of users ..................................................................................................... 48
3.1.5. Applying Feature keys ............................................................................................. 49
3.1.6. WiFi settings ............................................................................................................ 50
3.2. Basic link configuration ....................................................................................................... 51
3.3. Link test .............................................................................................................................. 51
4. Installation ..................................................................................................................................... 53
4.1. Line of sight test ................................................................................................................. 53
4.2. Antenna mounting .............................................................................................................. 53
4.2.1. LEAX-RAy antenna mounting .................................................................................. 54
4.2.2. Jirous antennas mounting ....................................................................................... 55
4.2.3. Other antennas mounting ........................................................................................ 55
4.3. RAy unit mounting .............................................................................................................. 57
4.3.1. Lubrication of the antenna pivot .............................................................................. 57
4.3.2. RAy unit mounting to the antenna ........................................................................... 58
4.3.3. RAy unit grounding .................................................................................................. 59
3© RACOM s.r.o. – RAy3 Microwave Link
RAy3 Microwave Link
4.4. Connectors assembly and disassembly ............................................................................. 61
4.5. Grounding and overvoltage protection ............................................................................... 64
4.6. Power supply ...................................................................................................................... 68
4.6.1. PoE power sourcing ................................................................................................ 69
4.6.2. DC power sourcing .................................................................................................. 69
4.7. Start up ............................................................................................................................... 71
4.7.1. Noise on the site ...................................................................................................... 71
4.7.2. Directing antennas ................................................................................................... 71
4.7.3. Link test ................................................................................................................... 76
4.7.4. Parameters setup .................................................................................................... 76
5. Configuration ................................................................................................................................. 77
5.1. Introduction ......................................................................................................................... 77
5.2. Status bar ........................................................................................................................... 78
5.3. Status ................................................................................................................................. 80
5.3.1. Status - General ...................................................................................................... 81
5.3.2. Status - Radio .......................................................................................................... 81
5.3.3. Status - Switch interface .......................................................................................... 82
5.3.4. Status - Service access ........................................................................................... 82
5.3.5. Status - Radio link statistics ..................................................................................... 82
5.4. Link settings ....................................................................................................................... 84
5.4.1. General .................................................................................................................... 84
5.4.2. Radio ....................................................................................................................... 85
5.4.3. Service access ........................................................................................................ 88
5.4.4. Alarms ..................................................................................................................... 97
5.5. Switch settings ................................................................................................................. 100
5.5.1. Status .................................................................................................................... 100
5.5.2. Interface ................................................................................................................. 106
5.6. Tools ................................................................................................................................. 110
5.6.1. Maintenance .......................................................................................................... 110
5.6.2. Live data ................................................................................................................ 118
5.6.3. History ................................................................................................................... 121
5.6.4. Logs ....................................................................................................................... 126
5.6.5. Programs ............................................................................................................... 127
5.7. Help .................................................................................................................................. 132
6. Command Line Interface ............................................................................................................. 135
6.1. Connection via CLI ........................................................................................................... 135
6.1.1. Telnet ..................................................................................................................... 135
6.1.2. Putty ...................................................................................................................... 135
6.1.3. SSH ....................................................................................................................... 135
6.2. Working with CLI .............................................................................................................. 136
6.2.1. SSH keys ............................................................................................................... 137
6.2.2. Scripts .................................................................................................................... 137
6.3. Configuration with CLI ...................................................................................................... 138
6.3.1. Configuration file .................................................................................................... 138
6.3.2. Firmware upgrade ................................................................................................. 138
6.3.3. Remote unit authorization ...................................................................................... 138
6.3.4. Radio loopback ...................................................................................................... 139
7. RAy Tools app for Mobile devices ............................................................................................... 140
7.1. Menu options .................................................................................................................... 140
7.2. Application availability ...................................................................................................... 141
7.3. Feedback to RACOM ....................................................................................................... 142
8. Troubleshooting ........................................................................................................................... 143
RAy3 Microwave Link – © RACOM s.r.o.4
RAy3 Microwave Link
9. Technical parameters .................................................................................................................. 145
9.1. General parameters ......................................................................................................... 145
9.1.1. Overview ................................................................................................................ 145
9.1.2. Link speed ............................................................................................................. 147
9.1.3. ACM switching ....................................................................................................... 149
9.2. RAy3-24 parameters ........................................................................................................ 150
9.2.1. Upper/Lower Limits ................................................................................................ 150
9.2.2. Radio parameters .................................................................................................. 150
9.2.3. Frequency tables ................................................................................................... 152
10. Safety, environment, licensing ................................................................................................... 153
10.1. Frequency ...................................................................................................................... 153
10.2. Safety distance ............................................................................................................... 153
10.3. Professional installation .................................................................................................. 153
10.4. RoHS and WEEE compliance ........................................................................................ 154
10.5. Liability for Defects and Safety Instructions ................................................................... 154
10.5.1. Ownership of product rights ................................................................................. 154
10.5.2. Conditions of use ................................................................................................. 154
10.5.3. Limitation of responsibility ................................................................................... 154
10.5.4. Product changes .................................................................................................. 155
10.5.5. RACOM Open Software License ......................................................................... 155
10.6. Warranty ......................................................................................................................... 155
10.7. EU Declaration of Conformity ......................................................................................... 156
10.8. Simplified EU declaration of conformity .......................................................................... 158
10.9. Country of Origin Declaration ......................................................................................... 160
A. Antenna dimensions ................................................................................................................... 161
B. SSH key generation .................................................................................................................... 162
C. Https certificate ........................................................................................................................... 164
D. Unit block diagrams .................................................................................................................... 165
Index ................................................................................................................................................ 166
E. Revision History .......................................................................................................................... 169
List of Tables
1.1. LED status indicators ................................................................................................................. 23
1.2. Overview of LEAX-RAy antennas .............................................................................................. 24
1.3. Overview of Jirous antennas ...................................................................................................... 24
1.4. HW ordering codes ..................................................................................................................... 26
1.5. Speeds according to Capacity feature keys ............................................................................... 27
1.6. Keys installed in the factory ........................................................................................................ 27
9.1. Parameters 1 ............................................................................................................................ 145
9.2. Parameters 2 ............................................................................................................................ 146
9.3. Link speed and RSS ................................................................................................................. 147
9.4. Link speed according to RFC 2544 .......................................................................................... 148
9.5. ACM switching according to MSE state ................................................................................... 149
9.6. Frequency limits ....................................................................................................................... 150
9.7. Radio parameters, BER = 10-6................................................................................................. 150
9.8. Frequency tables 24 ................................................................................................................. 152
10.1. Minimum Safety Distance 24 GHz ......................................................................................... 153
5© RACOM s.r.o. – RAy3 Microwave Link
6

Important Notice

Important Notice
Copyright
© 2014 RACOM. All rights reserved. Products offered may contain software proprietary to RACOM s. r. o. (further referred to under the ab­breviated name RACOM). The offer of supply of these products and services does not include or infer any transfer of ownership. No part of the documentation or information supplied may be divulged to any third party without the express written consent of RACOM.
Disclaimer
Although every precaution has been taken in preparing this information, RACOM assumes no liability for errors and omissions, or any damages resulting from the use of this information. This document or the equipment may be modified without notice, in the interests of improving the product.
Trademark
All trademarks and product names are the property of their respective owners.
Important Notices
• Due to the nature of wireless communications, transmission and reception of data can never be
guaranteed. Data may be delayed, corrupted (i.e., have errors), or be totally lost. Significant delays or losses of data are rare when wireless devices such as the RAy are used in an appropriate manner within a wellconstructed network. RAy should not be used in situations where failure to transmit or receive data could result in damage of any kind to the user or any other party, including but not limited to personal injury, death, or loss of property. RACOM accepts no liability for damages of any kind resulting from delays or errors in data transmitted or received using RAy, or for the failure of RAy to transmit or receive such data.
• Under no circumstances is RACOM or any other company or person responsible for incidental, acci-
dental or related damage arising as a result of the use of this product. RACOM does not provide the user with any form of guarantee containing assurance of the suitability and applicability for its applic­ation.
• RACOM products are not developed, designed or tested for use in applications which may directly
affect health and/or life functions of humans or animals, nor to be a component of similarly important systems, and RACOM does not provide any guarantee when company products are used in such applications.
7© RACOM s.r.o. – RAy3 Microwave Link

Quick guide

Quick guide
1. Delivered items
2. Accessories
3. Power supply
RAy3 Microwave Link – © RACOM s.r.o.8
4. Configuration
- Default IP addresses for Ethernet access: 192.168.169.169/24 (L unit) and 192.168.169.170/24 (U unit)
- Default IP address for USB/WiFi or USB/Eth access: 172.17.17.17/24 (both units) Ethernet access - set computer IP address within the range 192.168.169.1-255. USB/WiFi or USB/Eth access - IP address set automatically by DHCP (enabled by default, can be disabled in unit management). Recommended USB adapter must be plugged in to the unit. Default WiFi setting is without any password (recommended is to set one immediately).
- Web browser access to management: - Antenna Alignment Tool: http://172.17.17.17 (both units, USB/WiFi or USB/Eth) http://172.17.17.17/tk (both units, USB/WiFi or USB/Eth) or http://192.168.169.169 (L unit, Ethernet) or http://192.168.169.169/tk (L unit, Ethernet) or http://192.168.169.170 (U unit, Ethernet) or http://192.168.169.170/tk (U unit, Ethernet) Defaults: Username: admin, Password: admin no Username or Password is required for Tool
Secure HTTPS access can be optionally used instead (use „secured version“ below main entry to the management and then accept the https security certificate issued by RACOM). If the units are linked to each other, the status indicator in management interface states “OK” and status LED “AIR” lights green. If not, utilize the antenna alignment (see pict. 10 and Antenna Alignment Tool above).
- Set bandwidth, channels, modulation, power, IP addresses (do not use the default ones), Access channels (ssh, https..).
- Change the password, restart both units and check the link status (to verify that the parameters are saved correctly).
- Backup the configuration in the Tools / Maintenance / Backup / Settings menu. Store the backup file to your PC.
Quick guide
Accessing units
Configuration and backup of basic parameters
9© RACOM s.r.o. – RAy3 Microwave Link
Quick guide
5. Bracket and antenna
6. Unit lubrication and installation
7. Unit polarization
RAy3 Microwave Link – © RACOM s.r.o.10
8. Power grounding and connections
Quick guide
9. Sealing
11© RACOM s.r.o. – RAy3 Microwave Link
Quick guide
10. Directing antennas
11. RSS measurement
RAy3 Microwave Link – © RACOM s.r.o.12

List of documentation

User manuals:
RAy3 Microwave Link - User manual
User manual RAy3-24 - this document
RAy2 Microwave Link1- User manual
User manual RAy2-10, RAy2-11, RAy2-17, RAy2-18, RAy2-24
RAy2 Microwave Link2- Channel arrangements
Detailed tables of RAy2 frequencies
RAy1 Microwave Link3- User manual RAy11, 17, 24
User manual RAy11, RAy17, RAy24
RAy1 Microwave Link4- User manual RAy10
List of documentation
User manual RAy10
Datasheets:
RAy2 - Datasheet
RAy1 - Datasheet
RAy1 - SCADA Backbone
5
6
7
Application notes:
RAy - Application notes
8
Contents of the box
• 2 pc RAy3
2 pc Cable bushing set, connectors
• 1 pc Silicone grease
1
http://www.racom.eu/eng/products/m/ray2/index.html
2
http://www.racom.eu/eng/products/m/ray2tab/index.html
3
http://www.racom.eu/eng/products/m/ray17/index.html
4
http://www.racom.eu/eng/products/m/ray/index.html
5
http://www.racom.eu/download/hw/ray/free/eng/00_letaky/ray-dsA3-en.pdf
6
http://www.racom.eu/download/hw/ray/free/eng/08_ray1/datasheet_RAY_en.pdf
7
http://www.racom.eu/download/hw/ray/free/eng/08_ray1/leaflet_RAY_scada_en.pdf
8
http://www.racom.eu/eng/products/m/ray/app/index.html
13© RACOM s.r.o. – RAy3 Microwave Link
Product

1. Product

1.1. Main characteristics

RAy3 microwave units work as a point-to-point link in a full duplex setting with transfer speeds of up to 1002 Mbps.
Supported are 2 license-free bands 17 GHz (17.10 – 17.30 GHz) and 24 GHz (24.00 – 24.25 GHz). Bandwidth can be configured from 3.5 up to 112 MHz, independently for Tx and Rx. Modulation can be fixed or adaptive and can be adjusted from QPSK to 4096QAM. QPSK modulation could be on the fly (without data loss) strengthened for higher receiver sensitivity by extremely robust FEC – such modulation is marked as QPSK-S (S means “strong”). RAy3 microwave links operating in 17 and 24 GHz bands can also be operated as a Short Range Device (SRD).
This link is formed by two RAy units, each equipped by its own parabolic antenna and accessories to be fully operational.
Link transparency notes
RAy links are transparent for IP and UDP Ethernet traffic (practically all protocols passes through including MPLS and many others) except following packets:
• Management packets targeted for RAy units itself
• Special packets for protocols explicitly mentioned in this manual which are somehow processed by RAy units (like PTP)
• Packets which did not went through and were dis­carded due to capacity limitation and/or policy rules (e.g. Shaping ...).
Fig. 1.1: RAy3 – Microwave link
Hardware concept
RAy product line has been designed to have minimum possible number of hardware variants. Upgrade of functionality does not result in on-site hardware changes– everything is done by activating software feature keys (see Section 1.7, “Ordering codes” and Chapter 5, Configuration).
HW models are determined only by frequency bands, because both RAy units have identical hardware. Transmitting and receiving channels are freely defined by software and technically separated from each other by cross polarization.
Note
Even all units are hardware identical, default factory settings for each RAy in the pair use different channels for L and U unit, so the link could be established using default radio parameters.
Cross polarization means that one side of the link uses one polarization for transmission (e.g. horizontal) and the opposite polarization for receiving (e.g. vertical). The other side of the link is turned by 90°. It therefore transmits and receives using opposite polarization with respect to the other unit. The practical result for users is that RAy units for 17 and 24 GHz must be mounted with reverse polarity on both ends of the link.
RAy3 Microwave Link – © RACOM s.r.o.14

1.2. Mechanical interfaces

1.2.1. Antenna waveguide

Fig. 1.2: Waveguide pivot
Product
RAy3 link requires the use of external parabolic antenna for each RAy unit – both for physical mounting as well as for the wireless transmission itself. Parabolic antennas from different producers are available.
Radio connection between the antenna and RAy unit is ensured by the waveguide on RAy unit (located across the holder), where well lubricated antenna waveguide pivot nicely fits in.

1.2.2. Unit mounting

The RAy unit is mechanically fixed to the antenna by 4x M8 screws (one per each side of Ray unit). Installation and basic adjustment of the antenna is described in the Section 4.2, “Antenna mounting”. Attaching RAy unit to it by 4x M8x30 (Allen) screws delivered with each antenna or each mount kit is described in the Section 4.3, “RAy unit mounting”. For adjusting the exact antenna direction see Sec- tion 4.7.2, “Directing antennas” .
Fig. 1.3: Antenna and RAy3 unit
15© RACOM s.r.o. – RAy3 Microwave Link
Product

1.2.3. Grounding screw

Grounding screw is used for a proper grounding of the RAy unit, which is necessary for its function (ensured by galvanic connection to the grounded mast through a grounding cable).
One M8 screw (with standard 6-edge head) is delivered with each RAy unit. Grounding screw has two possible positions (two holes) to be mounted in. Those are located near the left and right fixing screws of the
RAy unit and both are marked by a yellow grounding symbol and both are equivalent (second hole remains unused). For more information about unit grounding see Section 4.3.3, “RAy unit grounding”.
Note
Grounding screw function is to ensure proper grounding of the RAy unit (by a grounding cable), not for mechanical fixing of the unit.
Fig. 1.4: Grounding screw
RAy3 Microwave Link – © RACOM s.r.o.16
Product

1.3. User interfaces

Each unit is equipped with basic mechanical interfaces (antenna waveguide, mounting screws and grounding screw) and several interfaces for data, power and service purposes located in 3 slots:
Fig. 1.5: Slots ETH1+POE, ETH2 Fig. 1.6: Slot S
ETH1+POE
ETH2
S
Gigabit metallic Ethernet port
This port is capable of powering the unit with any Power over Ethernet (PoE) power source working according to IEEE 802.3at standard. Passive PoE from 20 to 60 V is supported (if DC input is required, it could be injec­ted through this connector - the voltage range is identical: from 20 to 60 V).
Slot for user exchangeable SFP module
A wide range of fibre optics Ethernet modules is available. Both single or dual mode transceivers can be used. An SFP module with metallic RJ45 interface can also be used.
The SFP LED
Located on SFP, just next to connectors. It is controlled by SFP module. Its function is specific for each SFP module. The typical behavior is an indication the received signal from the optical or metallic link to be within operational range.
USB service connector
For USB/WiFi or USB/Eth adapters, see Section 1.4.1, “USB connector ( S )”
RSS voltage output
Red and green connectors (for example 0.547 V means RSS = –54.7 dBm), see Fig. 1.15, “RSS voltage contacts”
HW button
For service purposes: Internal backup or Factory settings, see Section 5.6.1, “Maintenance”
Status LED
Visible through semitransparent plug, see Section 1.5, “Status LED ( S )”
17© RACOM s.r.o. – RAy3 Microwave Link
Product
Note
A set of all necessary bushing parts are delivered with each RAy unit - see a description of this standard basic accessory SET-RAY3-CON. Additional bushing options for installation of longer connectors or other equipment are available as well. For bushings installation see Section 4.4, “Connectors assembly and disassembly”.
All accessories offered by RACOM for proper installation of the complete RAy link setup (including proper grounding) are tested for compatibility with RAy unit. See accessories listed in overview and described in details.
Important
All bushings and plugs (including the original plugs in the flanges) must be fitted with O­rings and carefully tightened. Otherwise, the unit is not protected against moisture intake through connectors and can not offer guaranteed functionality.

1.3.1. RJ45 ( ETH1+POE )

RJ45 socket connector marked „ETH1+POE“ is a standard 10/100/1000Mbps metallic Ethernet port. One plastic RJ45 plug for CAT5e and CAT6 cables is delivered with each RAy unit, ready to be punched to an Ethernet cable. NOTE: Higher quality and CAT7 compatible RJ45 plugs are available from RACOM as well – see for example item CON-RJ45-TLG-CAT6.
This port can be optionally used for power sourcing the unit by PoE (Power over Ethernet). Both an active PoE power supply (compliant with at least IEEE 802.3at stand­ard known also as „PoE plus“) and a passive PoE power supply (with voltage range 20-60 V) are supported.
Technical parameters of PoE power input:
Supported voltage range is 20 to 60 V, distances up to 100 m. Internal RJ45 pins wiring is :
• (V+) ... 1,2,4,5
• (V-) ... 3,6,7,8
It is possible to use all 8 pins or only 4 pins. Use:
• either 4,5 (V+) and 7,8 (V-)
• or 1,2 (V+) and 3,6 (V-)
• or both simultaneously
All contacts of RJ45 connector are galvanically separated from RAy unit. It ensures galvanical separation for any kind of PoE power supply as well as for DC power sourcing (made through DC-RJ45 adapter).
More information about usage and installation of available power options can be found in Section 4.6, “Power supply” and Section 4.5, “Grounding and overvoltage protection”.
Fig. 1.7: RJ45 Ethernet connector
RAy3 Microwave Link – © RACOM s.r.o.18

1.3.2. SFP slot ( ETH2 )

„ETH2“ is a standard SFP slot for 10/100/1000 Mbps Eth­ernet SFP modules, user exchangeable. Both fibre optic and metallic Ethernet SFP modules are supported. For optical both single and dual mode fibre optics Ethernet modules (= 2 or 1 fibers) can be used. CSFP modules are not supported. RACOM offers all mentioned types of SFP modules, tested to be RAy compatible as a standard ac- cessory.
The SFP status LED is located just next to the slot. It is controlled by SFP module. Its function is specific for each SFP module. The typical behavior is an indication the re­ceived signal from the fibre optic or metallic link to be within operational range.
Do not remove the smaller plastic screw next to ETH2 label. It is part of the cabinet and assures pressure equalization outside and inside.
Fig. 1.8: SFP slot
Product
Important
It is strongly recommended to use a high quality SFP module with industry temperature range. The SFP modules listed in Accessories are thoroughly tested by RACOM and are guaranteed to function with RAy units. It is possible to use any other SFP module, but RA­COM cannot guarantee they will be completely compatible with RAy units.

1.3.3. DC power ( ETH1+POE )

Direct DC power source can be used to power the RAy3 unit. Slot „ETH1+POE“ allows to use the DC-RJ45 adapter as a DC connector. It is equipped by 2 terminals (each 1.5 mm2/ AWG 14) with screws to ensure a perfect connection with cooper DC power cable. Its other end is then fitted into RJ45 connector slot „ETH1+POE“ in the RAy unit.
Supported voltage range is 20 to 60 V, both polarities are supported. Power input is galvanic separated inside RAy unit. Optional grounding of DC cable should be connected directly to the mast or to the Grounding screw on RAy chassis, to ensure proper grounding of the cable. For grounding to the mast use suitable grounding kit – for ex­ample see Grounding kits in section Accessories.
More information about DC power sourcing possibilities and installation can be found in Section 4.6, “Power supply”.
Fig. 1.9: Power supply connector
19© RACOM s.r.o. – RAy3 Microwave Link
Product
Fig. 1.10: Power via an DC-RJ45 adapter
Note
DC-RJ45 adapter occupies ETH1+POE port. When used, Ethernet connection to the unit has to be made through ETH2 port. Possible solutions are:
• If fiber optic Ethernet is used (using the correct type of SFP module), RAy3 unit is powered by DC through the DC-RJ45 adapter.
• If a metallic Ethernet has to be used together with DC power source, then metallic SFP module in ETH2 SFP slot is one of valid solutions.
Other valid possibility how to power the unit using DC power source is to use passive PoE injector or active PoE power supply with DC input and deliver the power to Ray3 unit through Ethernet cable with RJ45 connector plugged in to ETH1+POE slot.
Fig. 1.11: Power supply possibilities
RAy3 Microwave Link – © RACOM s.r.o.20

1.4. Service interfaces

1.4.1. USB connector ( S )

Slot „S“ is shortcut of "Service". It contains system connectors – standard USB port and a pair of contacts for RSS voltage output (red + gray ones). Also HW button and Status LED are located there.
USB-A port is designed for access to RAy management through USB/WiFi adapter or USB/Eth adapter plugged in to. More in­formation about installation and configuration of available ad­apters can be found in Quick Guide and in Section 5.4.3, “Ser- vice access” (part “USB Accessories”).
Note
Only RACOM recommended adapters are suppor­ted. See section Access adapters.
Product
Fig. 1.12: USB connector

1.4.2. Service WiFi ( USB „S“)

RAy3 unit can be equipped with the service WiFi interface as an option. It can be used solely for unit management (no user data can be transmitted using this WiFi connection).
Optional OTH-W2-WIFI WiFi module (ordering code OTH-W2- WIFI) can be inserted in to the slot “S” USB connector (see chapter Section 1.4.1, “USB connector ( S )” for more details). Management of the WiFi port is described in Section 5.4.3, “Service access” (part “USB Accessories”).

1.4.3. Service Ethernet ( USB „S“)

RAy3 unit can be equipped with the service Ethernet interface as an option. It can be used solely for unit management (no user data can be transmitted using this Ethernet connection).
Optional Eth adapter (ordering code SET-XA-ETH/USB) can be inserted in to the slot "S" USB connector (see chapter Sec- tion 1.4.1, “USB connector ( S )” for more details). Management of this Ethernet port is described in Section 5.4.3, “Service ac- cess” (part “USB Accessories”).
Fig. 1.13: USB WiFi adapter
Fig. 1.14: Ethernet adapter
21© RACOM s.r.o. – RAy3 Microwave Link
Product

1.4.4. RSS voltage ( S )

RSS voltage output connectors are located in slot „S“ aside USB connector. This pair of contacts (red + green ones) al­lows to connect a voltmeter (pin diameter 2 mm) to the RAy unit and measure RSS value transformed to the voltage out­put.
RSS (Received Signal Strength) is a basic parameter used for directing antennas to the optimal direction. RSS output voltage is calibrated to be proportional to actual RSS dBm (for example 0.547 V means RSS –54.7 dBm). Thus a standard digital voltmeter allows to see RSS value in a digital form interactively during the antenna alignment. More inform­ation about RSS voltage output usage is in Section 4.7.2, “Directing antennas” (part “Voltmeter”) together with several alternative ways to get this value by other methods.
Fig. 1.15: RSS voltage contacts

1.4.5. HW button ( S )

It is located in a small hole next to USB connector. It can be pushed by any tiny blunt thing with the diameter up to 2 mm. Its length has to reach about 7 mm in to the hole. (It can be ball pen cartridge – both ends work on the thin one, match, toothpick, etc.).
Important
Usage of very sharp things for pushing the HW button (like needle, edge clip etc.) may destroy the contact inside RAy unit! Such a button destruc­tion is not covered by warranty.
The button supports multiple functions, which are activated dependent on the state of the unit when the button is pushed and the length of the push:
Restore internally temporary stored
customer settings
operation
Fig. 1.16: Service interfaces
SYS LED indicationButton pushedUnit statusAction to be performed
Flashes GreenFor 5 secondsNormal
Factory settings
to Local unit, then reboot
Service mode. (Please, exit this mode by powering off the unit)
Out of powerApplying
Out of powerEntering the
Pushed before power on, released after SYS LED stops flashing red
Pushed before power on, released when SYS LED starts flashing red
RAy3 Microwave Link – © RACOM s.r.o.22
Flashes Red (delayed after power on, for a duration of 5 seconds)
Flashes Red (delayed after power on)
Note
Those actions and their use are described in detail in Section 5.6.1, “Maintenance”.

1.5. Status LED ( S )

RAy3 unit id equipped with one LED indicator located inside the housing of the FOD unit in slot „S“ (during normal opera­tion covered by semi-transparent plug). Meaning of the color combinations of this LED indicator is:
Product
Tab. 1.1: LED status indicators
Green and
Red LEDs
Fig. 1.17: Status LED
Function
System is up and working OK
System reports warning or alarm, which can be possibly repaired by user
System reports HW alarm
Unit is out of power or HW button pressed
Unit is starting
23© RACOM s.r.o. – RAy3 Microwave Link
Product

1.6. Basic technical parameters

Detailed technical parameters are stated in Chapter 9, Technical parameters.

1.6.1. Communication unit RAy3-24

Outer size 245 x 245 x 160 mm
Weight 2.6 kg

1.6.2. Diameters of supplied antennas

RAy3 units are ready for direct mounting to:
LEAX-RAy Class 3 antennas (LEAX Arkivator Telecom1)
Jirous Class 2 antennas (Jirous Antennas2)
Individual datasheets are accessible here3.
Tab. 1.2: Overview of LEAX-RAy antennas
24 GHz17, 18 GHz10, 11 GHz
gaindiametergaindiametergaindiameter
37.0 dBi30 cm34.7 dBi30 cm30.1 dBi30 cm
42.4 dBi60 cm39.7 dBi60 cm35.2 dBi60 cm
45.7 dBi90 cm43.5 dBi90 cm38.5 dBi90 cm
48.4 dBi120 cm45.5 dBi120 cm41.5 dBi120 cm
Tab. 1.3: Overview of Jirous antennas
24 GHz17, 18 GHz10, 11 GHz
gaindiametergaindiametergaindiameter
36.8 dBi40 cm34.8 dBi40 cm29.0 dBi38 cm
41.7 dBi68 cm38.6 dBi68 cm35.5 dBi65 cm
44.0 dBi90 cm41.0 dBi90 cm37.5 dBi90 cm
46.6 dBi120 cm43.7 dBi120 cm41.0 dBi120 cm
Andrew (Class 2 or 3 or 4) or traditional Arkivator antennas can also be used but require an antenna mounting kit. Flexible waveguide is a general-purpose option for any antenna usage.
1
http://www.leax-arkivator-telecom.com/
2
http://en.jirous.com/
3
http://www.racom.eu/eng/products/microwave-link.html#accessories_antennas
RAy3 Microwave Link – © RACOM s.r.o.24
S/N: 10232353
Type: RAy3-24
Code: RAy3-24-L
RF Power: +10 dBm TX,RX freq: 24.000-24.250 GHz PoE: IEEE 802.3at
20-60V
max.1.5A
www.racom.eu
Made in Czech Republic
Product

1.6.3. Production label

The label contains name, bar code record, CE label, etc.:
• Type – RAy3 product line identification
Code – detailed identification of the unit type (for details see Section 1.7, “Ordering codes” ).
• S/N – serial number, MW link consists of two separated units with two different serial numbers
• QR code – www link to the latest version of the User manual
• RF Power – maximum output power
• TX, RX freq – range of working frequency
• PoE – power supply characteristics
Fig. 1.18: Example of production label
25© RACOM s.r.o. – RAy3 Microwave Link
Product

1.7. Ordering codes

RAy3 microwave link consists from a pair of units for the chosen band (selected according to Ordering codes for HW units) with the proper SW feature keys for capacity and SW feature keys for other functions.
Each feature key is generated for the unique serial number of the unit (and does not work in other unit). Once installed, feature key unlocks a specific feature or function of the unit. Feature keys could be erased or upgraded.
Ordering codes for accessories, necessary to be added to RAy units to ensure a proper functionality of the whole microwave link, are listed in Chapter 2, Accessories.

1.7.1. Ordering codes for HW units

The proper pair (from the same row) of Lower and Upper units should be selected when ordering the microwave link. Both RAy3-17 and RAy3-24 have only one HW model. The difference between L and U code is only in default factory settings, which are different for each side of the link. Unit marked with L is set for transmission on lower frequency (and receive on higher one), while unit marked with U is set for transmission on higher frequency (and receive on lower one). This allows the link to be established without any initial manual settings – just by powering up both units at factory defaults.
Tab. 1.4: HW ordering codes
Ordering codes for HW unitsRAy3
Frequency [GHz]Band
Ordering codes
Upper unitLower unit
RAy3-24S-URAy3-24S-L24.000 – 24.25024 GHz
ver 1.1

1.7.2. Ordering codes for Capacity feature keys

Maximum user data capacity can be limited by a SW feature key. Capacity feature key defines the maximum speed of the link. Available speed limits for RAy3 unit are 360 Mbps, 500 Mbps and 1000 Mbps.
Table below shows what combinations of channels + modulations each feature key allows (marked by colors according the capacity limit in the most right column and in the last row).
RAy3 Microwave Link – © RACOM s.r.o.26
Tab. 1.5: Speeds according to Capacity feature keys
User data rate [Mbps]RAy3
ModulationBand
width
QPSKQPSK
_SMHz
16
QAM
32
QAM
64
QAM
128
QAM
256
QAM
512
QAM
1024 QAM
232119171511105.02.73.5
333128252116147.13.85
2048 QAM
575247423731242010.55.87
4096 QAM
Product
Capac. feature
keys
787164575042332714.47.910
360M
12811910998887765504122.211.914
18517115814212711194726032.017.220
2692492272021811571321058138.524.328 500M37734831828325322018514811353.934.040
54050145941436631926821316981.148.756
713653589521454381303240115.469.380 1000M
895820736653569479381299144.586.6100
1002918824731637537426334161.897.0112
Capac. feature
1000M500M360M
keys
ver 1.0
Feature keys for capacity could be installed in the factory or purchased separately (and installed by user). Every Capacity feature key could be upgraded. The capacity limitation for the unit is applied according the highest speed feature key installed.
Capacity feature keys installed in the factory
Tab. 1.6: Keys installed in the factory
Ordering codes for Capacity feature keys installed in the factoryRAy3
Examples
Capacity allowed [Mbps]Ordering code Extension
x - means numbers or letters according to the section called “Feature keys”
Note
If no Capacity feature key is ordered, the unit is shipped with RAy3-xx-x-360 key.
RAy3-24RAy3-17 RAy3-24-U-360RAy3-17-L-360360RAy3-xx-x-360 RAy3-24-U-500RAy3-17-L-500500RAy3-xx-x-500
RAy3-24-U-1000RAy3-17-L-10001000RAy3-xx-x-1000
ver 1.0
27© RACOM s.r.o. – RAy3 Microwave Link
Example:
RAy3-SW-500
Product type RAy
SW (= all software feature keys)
Speed limit in Mbps. Possible values 500, 1000
Example:
RAy3-SW-500-1000
Product type RAy
SW (= all software feature keys)
Speed to upgrade from in Mbps. Possible values 360, 500
Speed to upgrade to in Mbps. Possible values 500, 1000
Product
Capacity feature keys purchased separately (and installed by user)
The feature key ordering code consists from three parts:
Available ordering codes:
RAy3-SW-500
RAy3-SW-1000
Note
The default user speed delivered without the feature key is defined by a business condition for the HW unit and country of sale.
Capacity upgrade feature keys (purchased separately)
Available ordering codes:
RAy3-SW-360-500
RAy3-SW-360-1000
RAy3-SW-500-1000
Note
RAy3 functionality with the upgrade feature key (example:RAy3-SW-360-1000) is identical with functionality of the full capacity feature key with identical final capacity (example RAy3­SW-1000). The difference is just in purchase price.
RAy3 Microwave Link – © RACOM s.r.o.28

1.7.3. Ordering codes for other feature keys

Ordering codes for other feature keysRAy3
Product
ExampleParametersMeaningOrdering code
RAy3-SW-TX-xyy
Limitation of
Tx power
x: P = positive value
N= negative value
yy: value of limit in dBm
RAy3-SW-TX-N15
(limits TX power to
-15 dBm)
ver 1.0
29© RACOM s.r.o. – RAy3 Microwave Link
Accessories

2. Accessories

RACOM offers a complete set of accessories to operate RAy microwave units in all relevant use-cases and environments and provide surge protection. All accessories are thoroughly tested by RACOM for compatibility and are guaranteed to function with RAy units. It is possible to use other components with same or similar functionality, but RACOM cannot guarantee they will be completely compatible with RAy units.
Important
We strongly recommend to double check local power voltage level and local standards for all necessary accessories to be compliant with local voltage and with all regulations related to safety and surge protection.
We especially recommend to consult local experts and study local standards regarding grounding and surge protection to ensure the chosen and installed grounding and protection meets actual site conditions and safety regulations.
Warranty does not apply for units destroyed by surges (see RACOM warranty conditions at Section 10.6, “Warranty”).

2.1. Overview

Short descriptionRACOM-PART-NUMBER
Antennas LEAX-RAy (LEAX Arkivator Telecom)
Antenna parabolic 0.3 m 10-11GHz with holder 30.1 dBi Class 2ANT-LEAX-RAy-300-10/11 Antenna parabolic 0.6 m 10-11GHz with holder 35.2 dBi Class 3ANT-LEAX-RAy-600-10/11 Antenna parabolic 0.9 m 10-11GHz with holder 38.5 dBi Class 3ANT-LEAX-RAy-900-10/11 Antenna parabolic 1.2 m 10-11GHz with holder 41.5 dBi Class 3ANT-LEAX-RAy-1200-10/11 Antenna parabolic 0.3 m 17-18 GHz with holder 34.7 dBi Class 3ANT-LEAX-RAy-300-17/18 Antenna parabolic 0.6 m 17-18 GHz with holder 39.7 dBi Class 3ANT-LEAX-RAy-600-17/18 Antenna parabolic 0.9 m 17-18 GHz with holder 43.5 dBi Class 3ANT-LEAX-RAy-900-17/18 Antenna parabolic 1.2 m 17-18 GHz with holder 45.2 dBi Class 3ANT-LEAX-RAy-1200-17/18 Antenna parabolic 0.3 m 24GHz with holder 37.0 dBi Class 3ANT-LEAX-RAy-300-24 Antenna parabolic 0.6 m 24 GHz with holder 42.4 dBi Class 3ANT-LEAX-RAy-600-24 Antenna parabolic 0.9 m 24 GHz with holder 45.7 dBi Class 3ANT-LEAX-RAy-900-24 Antenna parabolic 1.2 m 24 GHz with holder 48.4 dBi Class 3ANT-LEAX-RAy-1200-24 Optional wind strut for 90 cm LEAX-RAy antennaSET-LEAX-STRUT-90 Optional second wind strut for 120 cm LEAX-RAy antennaSET- LEAX-STRUT-120
Antennas Jirous (Jirous Antennas)
Antenna parabolic 0.38 m 10-11GHz with holder 28.0-29.0 dBi Class 2ANT-JRMA-380-10/11R Antenna parabolic 0.65 m 10-11GHz with holder 34.1-35.5 dBi Class 2ANT-JRMA-650-10/11R Antenna parabolic 0.9 m 10-11GHz with holder 37.0-37.5 dBi Class 2ANT-JRMB-900-10/11R Antenna parabolic 1.2 m 10-11GHz with holder 40.0-41.0 dBi Class 2ANT-JRMB-1200-10/11R Lens antenna 17GHz with holder 22.6 dBiANT-JCMA-17R
RAy3 Microwave Link – © RACOM s.r.o.30
Antenna mounting kits
Accessories
Antenna parabolic 0.4 m 17-18 GHz with holder 34.8 dBi Class 2ANT-JRMB-400-17R Antenna parabolic 0.68 m 17-18 GHz with holder 38.6 dBi Class 2ANT-JRMB-680-17R Antenna parabolic 0.9 m 17-18 GHz with holder 41.0 dBi Class 2ANT-JRMB-900-17R Antenna parabolic 1.2 m 17-18 GHz with holder 44.6 dBi Class 2ANT-JRMB-1200-17R Antenna parabolic 0.4 m 24 GHz with holder 36.8 dBi Class 2ANT-JRMB-400-24R Antenna parabolic 0.68 m 24 GHz with holder 41.7 dBi Class 2ANT-JRMB-680-24R Antenna parabolic 0.9 m 24 GHz with holder 44.0 dBi Class 2ANT-JRMB-900-24R Antenna parabolic 1.2 m 24 GHz with holder 46.6 dBi Class 2ANT-JRMB-1200-24R Wind bracing set – Fixed – for Jirous 120cm antennaSET-JRMB-1200-FIX Wind bracing set – Adjustable – for Jirous 120cm antennaSET-JRMB-1200-ADJ
Set mouting RAy10/11 Antenna Andrew 60, 100SET-RAY10-ANW Set mouting RAy10/11 Antenna Arkivator 30, 60, 99, 120SET-RAY10-ARK Set mouting RAy17/18 Antenna Andrew 30, 60, 100SET-RAY17-ANW Set mouting RAy17/18 Antenna Arkivator 30, 60, 99SET-RAY17-ARK Set mouting RAy24 Antenna Andrew 30, 60, 100SET-RAY24-ANW Set mouting RAy24 Antenna Arkivator 30, 60, 99, 120SET-RAY24-ARK
Flexible waveguide mounting kit
Set mouting RAy to flange R100SET-RAY-FX-R100 Set mouting RAy to flange R120SET-RAY-FX-R120
Cable bushing
RAy3 suplied accessories - bushings and connectorsSET-RAY3-CON Cable bushing lengthening, PG21, 35 mmSET-RAY2-EXT35 Cable bushing lengthening, PG21, Flexi, 50cmSET-RAY2-EXT-F50
Grounding kits
Mast grounding kit for RAyKIT-GROUNDING-RAY Grounding kit universal for 5-11 mm cablesKIT-GROUNDING-5-11MM Grounding kit for Ethernet CAT7 cableKIT-GROUNDING-1/4"
DC power supply and DC surge protection
Power sup. 27.6VDC, 37W / 90-260VAC, -10/+50°C, opt. battery, MeanWellPWS-AC/DC-AD-55B Surge protection, DC 24V, LPZ1-LPZ2, IP20, -40/+80°C , SaltekOTH-DP-024
DC-RJ45 adapter
DC power adapter, RJ45 to terminalsOTH-DC-RJ45 DC-RJ45 + Cable bushing lengtheningSET-DC-RJ45-EXT35
PoE power supply - passive, protected
PoE power sup 1Gb Eth, 50 W, 100-240VAC, protected, IMCO PowerPWR-POE-ALC01H PoE passive injector 1Gb Eth, max 1.4 A, protected, IMCO PowerPWR-POE-PAS-H
PoE power supply - active
Power supply PoE 1xGb Eth 33.6 W at 56 VDC / 90-264 VAC, PhihongPWR-POE36U-1AT Power supply PoE 1xGb Eth 33.6 W at 56 VDC / 36-72 VDC, PhihongPWR-POE36D-1AT
31© RACOM s.r.o. – RAy3 Microwave Link
Accessories
ETH surge protection
ETH connectors and cables
SFP modules
Fibre cables
DIN rail holder for PoE PhihongHOL-POE-PHI-1A
Eth surge prot. 1Gb Eth, PoE, LPZ0B-LPZ1 IP20 -40/+80°C, SaltekOTH-DL-1GRJ45
Connector TC-CON, STP RJ45, Cat6, 8p8c, wire, pleated, AWG24, UBNTCON-RJ45-UBNT-CAT6 Connector RJ45, AWG 24-22 (Cat5e, Cat6A, Cat7), TelegärtnerCON-RJ45-TLG-CAT6 Set RJ45 connector (Telegärtner) and cable bushing lengthening (35mm)SET-RAY2-TLG-EXT35 Double shell outdoor FTP Cat5e cable TELDORCAB-CAT5E-FTP-TLD Double shell outdoor FTP Cat7 cable PEWTRONICCAB-S/FTP 4x
SFP module, RJ45 interface, -40°C to +85°C , AvagoSFP-RJ45-AVAGO SFP module optical, 2-fibres, LC, 10km, -40°C to +85°C, APAC OptoSFP-DLC-APAC
Fibre patch cord, 2-fibres, single mode, LC-conn - LC-conn, OFA, 5 mCAB-FIB-2F-DLC/DLC- ... Fibre patch cord, 1-fibre, single mode, LC-conn - LC-conn, OFA, 5 mCAB-FIB-1F-LC/LC-OFA-5m Fibre pigtail, 2-fibres, single mode, LC-connector - loose end, OFA, 5 mCAB-FIB-2F-DLC/x-OFA-5m Fibre pigtail, 1-fibre, single mode, LC-connector - loose end, OFA, 5 mCAB-FIB-1F-LC/x-OFA-5m
Fibre & DC outdoor cables
DC power cable - Fibre: patchcord, 2-fibresCAB-HYB-2F-DLC/DLC- ... DC power cable 2x1.5 mm, silicone rubberCAB-DC-2x1.5
Access adapters
WiFi adapterOTH-W2-WIFI Ethernet adapterSET-XA-ETH/USB
RAy3 Microwave Link – © RACOM s.r.o.32

2.2. Details

Antennas with Direct Mounting (LEAX-RAy + Jirous)
All models of LEAX-RAy and Jirous antennas allow direct mounting of RAy unit.
Antennas overview
Dimensions
List of datasheets
Installation
A radio link calculation should be performed to determine appropriate antenna size (use our on-line calculator2or RAy-Tools application for smartphones).
Bigger antennas (90 + 120 cm) installed at windy sites (wind speed above 50 m/s) require installation of additional struts both for LEAX­RAy and Jirous – see Section 4.2.1, “LEAX-RAy antenna mounting” for more details and Section 2.1, “Overview ” for items to quote.
1
Accessories
Antenna mounting kit (for Andrew and Arkivator)
These antennas can also be used for mounting of RAy unit using special brackets. Please contact us3for other possibilities.
Mounting kit overview
More information
Flexible waveguide mounting kit (other antennas)
RAy units can be attached to the antenna using flexible waveguide mounting kits. Two types of flexible waveguide flanges are suppor­ted: R100 and R120.
Mounting kit overview
More information
1
http://www.racom.eu/eng/products/microwave-link.html#accessories_antennas
2
http://www.racom.eu/eng/products/microwave-link.html#calculation
3
http://www.racom.eu/eng/about_us/contact.html
33© RACOM s.r.o. – RAy3 Microwave Link
Accessories
Cable bushing
SET-RAY3-CON RAy3 suplied accessories - basic set of cable bushings and connectors ○ 2 pc standard PG21 bushing with nut ○ 1 pc blind plug Racom ○ 2 pc O-ring ○ 2 pc rubber sealing small diameter ○ 2 pc rubber sealing medium diameter ○ 2 pc rubber sealing big diameter ○ 1 pc RJ-45 ethernet connector
SET-RAY2-EXT35 Cable bushing lengthening, PG21, 35 mm O-ring
SET-RAY2-EXT-F50 Cable bushing lengthening, PG21, Flexi, 50cm ○ orig. part no:
PA6-23N, RKG-23P21N, RKF-23P21N, 2xORC-23, set REVELET flat ring FSN-P21
Grounding kits
KIT-GROUNDING-RAY RAy grounding set for grounding RAy equipment to the mast. Contains a ZSA16 grounding terminal, grounding tape and a cable with grounding lugs. Detail see Grounding
Datasheet
4
KIT-GROUNDING-5-11MM Grounding Kit universal for 5-11mm cables. Suitable for Ethernet CAT5e + CAT6 cables and for shielded DC cables ○
Datasheet
5
○ orig. part no: 6115050001
4
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/KIT-GROUNDING-RAY.pdf
5
https://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/KIT-GROUNDING-5-11MM.pdf
RAy3 Microwave Link – © RACOM s.r.o.34
KIT-GROUNDING-1/4" Grounding kit for Cat.7 S/FTP 4x(2x23 AWG) cable. Pewtronic. Detail see Grounding
Datasheet
6
DC power supply and DC surge protection
PWS-AC/DC-AD-55B RAy unit DC power supply 37 W with free air cooling (50 W with fan) Output 27.6 V DC, optional battery support with UPS function Input 90-260 V AC, -10/+50°C, MeanWell ○
Datasheet
7
○ orig. part no: AD-55B
OTH-DP-024 DC surge protection, 24V, LPZ1-LPZ2, IP20, -40/+80°C, Saltek ○
Datasheet
8
○ orig. part no: DP-024
Accessories
DC-RJ45 adapter
OTH-DC-RJ45 Connector for DC power cable to be plugged directly to the RAy3 RJ45 PoE input 100% passive component DC power is delivered through all 8 wires on RJ45. Internal wiring:
• One DC contact ... RJ45 pins: 1,2,4,5
• Second DC contact ... RJ45 pins: 3,6,7,8
SET-DC-RJ45-EXT35 Set DC-RJ45 adapter and cable bushing lengthening (35mm) for RAy3
6
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/KIT-GROUNDING-CAT7.pdf
7
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/PWS-AC-DC-AD-55B.pdf
8
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/OTH-DP-024-ds-en.pdf
35© RACOM s.r.o. – RAy3 Microwave Link
Accessories
PoE power supply - passive, protected
PWR-POE-ALC01H Power supply including passive PoE injector 1Gb Eth surge protection, overcurrent fuse PoE output 55.2 V, max 0.9 A input 100 to 240V / 55W temp -25/+60°C; DIN rail, IMCO Power ○
Datasheet
9
○ orig. part no: ALC01.H 5501 PoE (EV003096, IP.2121.633.55)
PWR-POE-PAS-H PoE passive injector 1Gb Eth, max 1.4A surge protection, overcurrent fuse input 20 to 56 VDC temp -30/+60°C; DIN rail; IMCO Power ○
Datasheet
10
○ orig. part no: PoE.H 1Gb (EV003391, IP.8421.633.15)
PoE power supply - active
PWR-POE36U-1AT RAy unit PoE power supply according to IEEE 802.3at, 1x Eth PoE output 56 V / 33.6 W, 4 wires Input 100 to 240 VAC, -20/+50°C, no SNMP, Phihong ○
Datasheet AC
11
○ orig. part no: POE36U-1AT
PWR-POE36D-1AT RAy unit PoE power supply according to IEEE 802.3at, 1x Eth PoE output 56 V / 33.6 W, 4 wires Input 36 to 72 VDC / 1.2A, -20/+50°C, no SNMP, Phihong ○
Datasheet DC
12
○ orig. part no: POE36D-1AT
HOL-POE-PHI-1A DIN rail holder for PoE power supply from Phihong PoE power supply not included - needs to be ordered separately
9
https://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/PWR-POE-ALC01H.pdf
10
https://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/PWR-POE-PAS-H.pdf
11
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/PWR-POE36U-1AT.pdf
12
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/PWR-POE36D-1AT.pdf
RAy3 Microwave Link – © RACOM s.r.o.36
ETH surge protection
OTH-DL-1GRJ45 Eth surge protection for LPZ0B-LPZ1, 1Gb, RJ45 sockets, PoE transparent, DIN rail, IP20
-40/+80°C, Saltek ○
Datasheet
13
○ orig. part no: DL-1G-RJ45-POE-AB
ETH connectors and cables
CON-RJ45-UBNT-CAT6 STP RJ45 /Cat6 / 8p8c / wire/ gold plated/ AWG24, UBNT ○ orig. part no: TC-CON connector STP RJ45
CON-RJ45-TLG-CAT6 Connector RJ45, AWG 24-22, Telegärtner Suitable for Cat5e, Cat6A, Cat7 cables ○
Datasheet
14
○ orig. part no: Telegärtner MFP8 Cat.6A AWG 22-27
Accessories
SET-RAY2-TLG-EXT35 Connector RJ45, AWG 24-22, Telegärtner + Racom SET-RAY2-EXT35 Set RJ45 connector (Telegärtner) and cable bushing lengthening (35mm). Suitable for AWG24-22 (Cat5e, Cat6A, Cat7) cables. ○
Datasheet
15
○ orig. part no: Telegärtner MFP8 Cat.6A AWG 22-27
CAB-CAT5E-FTP-TLD Cat.5e cable for connecting RAy units to the network, outdoor, UV protected, -40°C to +70°C, TELDOR ○
Datasheet
16
○ orig. part no: PLU030078
CAB-S/FTP 4x Cat.7 cable for connecting RAy units to the network, outdoor, UV protected, -30°C to +70°C, PEWTRONIC Ltd. ○
Datasheet
17
○ orig. part no: S / FTP 4x (2x23AWG) Cat.7 + 2x (2×24 AWG)
13
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/OTH-DL-1GRJ45-ds-en.pdf
14
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CON-RJ45-TLG-CAT6.pdf
15
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CON-RJ45-TLG-CAT6.pdf
16
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CAB-CAT5E-FTP-TLD.pdf
17
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CAB-S-FTP-4x.pdf
37© RACOM s.r.o. – RAy3 Microwave Link
Accessories
SFP modules
SFP-RJ45-AVAGO SFP module, RJ45 interface, -40°C to +85°C , Avago ○
Datasheet
18
○ orig. part no: ABCU-5730ARZ
SFP-DLC-APAC SFP module, 2-fibres, LC, 10km, -40°C to +85°C, APAC Opto ○
Datasheet
19
○ orig. part no: LS38-C3S-TI-N-DD
Fibre optic cables
CAB-FIB-2F-DLC/DLC-OFA-5m patchcord, 2-fibres, single mode, LC-connector — LC-connector, yyy meters, OFA ○ orig. part no: DLCRAC2Fyyy
CAB-FIB-1F-LC/LC-OFA-5m patchcord, 1-fibre, single mode, LC-connector — LC-connector, yyy meters, OFA ○ orig. part no: LCRAC1Fyyy
CAB-FIB-2F-DLC/x-OFA-5m pigtail, 2-fibres, single mode, LC-connector — loose end, yyy meters, OFA ○ orig. part no: DLC0RAC2Fyyy
CAB-FIB-OFA-1F-LC/x-OFA-5m pigtail, 1-fibre, single mode, LC-connector — loose end, yyy meters, OFA ○
Datasheet
20
○ orig. part no: LC0RAC1Fyyy
18
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/SFP-RJ45-AVAGO.pdf
19
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/SFP-DLC-APAC.pdf
20
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CAB-FIB-OFA.pdf
RAy3 Microwave Link – © RACOM s.r.o.38
Fibre & DC outdoor cables
CAB-HYB-2F-DLC/DLC-OFA-030m (example for 30m long cable) DC: 2x1.5mm2; fibre: patchcord, 2-fibres, single mode, LC-connector — LC-connector ○
orig. part no: DLCHRAC2Fyyy Phoenix Microwave Hybrid Cable LSOH, yyy meters, OFA
Datasheet
21
CAB-DC-2x1.5 silicone rubber, 2x1.5 mm², -55 to +180°C, ProPS ○
Datasheet
22
○ orig. part no: V05SS-F 2Dx1.50
Accessories
Access adapters
OTH-W2-WIFI USB WiFi adapter for service access to the management interface, Antenna Alignment Tool and RAy Tools smartphone application. The unit provides a built-in DHCP server. To access the unit use by default the IP 172.17.17.17 for management and the ht- tp://172.17.17.17/tk for Antenna Alignment Tool.
SET-XA-ETH/USB Ethernet adapter for service access to the web interface via USB connector. RAy3 provides a built-in DHCP server with up to 6 leases. To access the RAy3 use by default the IP 172.17.17.17.
Note
It is strongly recommended that you order this component through RACOM to ensure the WiFi chip model and version is supported by RAy firmware. RACOM cannot accept any responsibility for any issues arising from the use of non-RACOM approved WiFi adapters.
Extended descriptions
See www.racom.eu, Microwave link, Accessories
21
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/CAB-HYB-OFA.pdf
22
https://webservice-new.racom.eu/main/eshop.detail?i=1479
23
http://www.racom.eu/eng/products/microwave-link.html#accessories
23
39© RACOM s.r.o. – RAy3 Microwave Link
Accessories
E-shop
Accessories easiest to order on E-shop RACOM
24
Use there a search engine Ctrl+F and RACOM-PART-NUMBER of the searched item.
24
https://webservice-new.racom.eu/main/eshop.list?a=1&t=10
RAy3 Microwave Link – © RACOM s.r.o.40
Step-by-step Guide

3. Step-by-step Guide

The following chapters will guide you step by step through preparation, installation and activation of the RAy3 link:
• Pre-installation check out
Installation (Chapter 4.)
Advanced configuration (Chapter 5.)
Troubleshooting (Chapter 8.)
Pre-installation Checklist
Default settings for L and U units are chosen to allow delivered units to automatically establish a link without unpacking RAy3 units from the box. It is enough to open the boxes and power both RAy units up (by PoE or DC power supplies). It allows users to comfortably set up basic parameters necessary for the installation in the lab and thus shorten the time on the tower or roof to a minimum. Following text provides a guide how to optimally arrange the workplace, how to setup the link and which parameters are good to be set up before the installation outside.
Default factory settings define the initial link to be established on the most narrow channel, strongest modulation and lowest available Tx power (in RAy3 case those are 3.5 MHz channel, QPSK_S modu­lation and Tx power = -30 dBm). Complete default settings are described in section 10 Technical parameters.
Note
RAy3 default factory settings allow to install both units on the mast and establish the short link without prior manual configuration. Just the distance has to be very short due to Tx power set to the minimum for the unit (-30 dBm on Ray3-17 and Ray3-24). Typically, Tx power has to be increased to a reasonable level (or even to a maximum) before link align­ment.
41© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide
Fig. 3.1: Workplace for link testing and configuration
Take the following steps to link together both delivered RAy3 units and to establish a connection between them and PC or tablet or mobile and perform a basic setup:
■ Open both boxes and double check that both RAy3 units are turned OK, so waveguides are heading to each other.
■ Connect power sources (PoE or DC) to both RAy3 units (using slot ETH1+POE).
■ Wait about 30 seconds until both units boot up and the link is established. The green light should be visible on both units through transparent plug on slot “S”.
■ Connect by WiFi or by Ethernet cable (plugged in to LAN input on PoE power supply or in to Eth port on USB-Eth adapter) to one of those two units. Units linked together allow effectively set all IP ad­dresses, passwords, security keys, feature keys, users, etc. from one side of the link.
○ If WiFi is used, then just select which WiFi to connect to. IP address of your PC or laptop is set
automatically by DHCP.
○ If Eth over USB port is used (through Eth /USB adapter SET-XA-ETH/USB), IP address of your
PC or laptop is set automatically by DHCP as well.
○ If Eth connection to one of data ports on RAy3 (ETH1 or ETH2) is used, then the IP address on
your PC or laptop has to be set manually to establish a working connection. See Quick Guide for the complete list of IP addresses to use.
RAy3 Microwave Link – © RACOM s.r.o.42
Step-by-step Guide
○ Enter a web management of the unit and configure everything you like to change to be ready for
outside installation. Following parameters are typically set in this phase:
• IP addresses and VLANs
• passwords
• security keys
• feature keys
• users
• WiFi behavior
• Tx and Rx frequencies (if known in advance)
• Higher Tx power (to be ready for antenna alignment) – see section “Important” below
Note
This setup can be used for link configuration, however full radio performance can't be
• expected (high modulations, full Tx power range, etc.) because standard conditions between units (antenna interface, polarization planes, free space attenuation) inside the box are not met.
• High TX power does not lead to better RX signal quality, because the receiver input can be saturated with too strong signal (see more info in chapter 8. Troubleshooting, topic Overexcited receiver).
Important
Maximum secure Tx power for RAy units inside the box is 0 dBm. Higher Tx power risks
• the damage of sensitive input circuits!
• If you need to configure higher Tx power to be ready for antenna alignment during install­ation on the mast, you first have to turn units in to position where waveguides are not heading to each other, so reasonable attenuation is ensured. Secure is for example to put RAy units in parallel in to a direction without any metal material in front of the microwave beams (it could reflect waves back to units).
• Maximum time units can be powered up inside the box is 10 minutes (standard room temperature expected). Longer time may lead to the unit overheat! If more time is needed for configuration, units have to be unpacked from boxes.
43© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide

3.1. Service access

The RAy3 link is supplied with a default configuration of access parameters:
For Ethernet access through RJ45 or SFP ports:
• Unit L has the service IP address 192.168.169.169 and mask 255.255.255.0
• Unit U has the service IP address 192.168.169.170 and mask 255.255.255.0 For WiFi or Ethernet access via USB/WiFi or USB/Eth adapter:
• Both units have service IP address 172.17.17.17 and mask 255.255.255.0
For Ethernet access through RJ45 or SFP ports an IP address has to be set on your PC that is within the mask, e.g. 192.168.169.180. For WiFi or USB/Eth access an IP address for laptop or mobile or tablet is set automatically by DHCP (enabled by default).
Then open the http or https configuration interface, e.g. https://192.168.169.169 or http://172.17.17.17 Access is allowed over HTTP, HTTPS or SSH. The default username is "admin" and the password is also "admin" (it is strongly recommended to change it).
See Configuration / Link settings / Service access / USB accessories chapter for detailed information.
The Antenna Alignment Web Tool can also be used for antenna direction alignment. It can be accessed via a web browser utilizing IP addresses with „/tk“ at the end (e.g. http://172.17.17.17/tk for WiFi or USB/Eth adapter or http://192.168.169.169/tk or http://192.168.169.168/tk for ETH1/ETH2 ports).
When connection has been established, use the Service access menu to customize access parameters.
Default management IP addresses should be replaced with well-chosen operating addresses. Default can lead to network problems later.
The menu contains parameters for the entire link, both for the Local and remote Peer units. If a connec­tion has been established, both sets of parameters have been set. While working with an isolated unit, only Local parameters are functional for the currently connected unit.
Note
If the link is OK and there are no parameters shown of the station Peer, it is necessary to click on Refresh.
Follows the description of basic settings. Pictures in following sections show default factory settings for L unit and RC info “rcinfo20_250_default:XXX”. Default settings for unit U (for opposite side of the link) would be adequately exchanged. Values for other RCinfo may be different as well (differences typically refers to frequencies and Tx power as they are allowed by authorities for the actual band and a region).
After entering values on the screen always save the content by clicking on Apply.
Note
If there is any problem with https certificate after completing the firmware upgrade, please see the Annex Https certificate for further steps.
RAy3 Microwave Link – © RACOM s.r.o.44
Step-by-step Guide

3.1.1. Choosing right band according the country of use

Menu Tools / Maintenance / Radio adaptation
First step is to set the right set of rules for the band according the region or country of use, so the unit is compliant with the local regulation. Go to the menu according the picture below and set parameter RCINFO accordingly.
Fig. 3.2: Menu Tools / Radio adaptation
For full explanation of all possibilities of this screen see the section called “Radio adaptation”.
45© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide

3.1.2. Setting units name and location

Menu Link settings / General
Not necessary settings. Anyhow it is beneficial to name the link and its location for easier identification later on:
• Station name – station can be assigned with a name, e.g. the place of installation.
• Station location – for easier inclusion the network hierarchy, it is possible to enter the station’s location
Fig. 3.3: Configuration Menu Link settings / General
For full explanation of all possibilities of this screen see Section 5.4.1, “General”.
RAy3 Microwave Link – © RACOM s.r.o.46
Step-by-step Guide

3.1.3. Setting Ethernet access parameters

Menu Link / Service access / Services
Those settings are necessary to make new units accessible within target Ethernet network. Typically, all following parameters should be set according to both networks IP addressing, routing, planned access methods for data and for management, etc.:
• IPv4 address – enter a valid IP address to access the unit. The default IP address has to be replaced with a valid address. Keeping the default address will probably lead to future problems in the network.
• Netmask – enter the network mask.
• Gateway – if necessary, enter a gateway, otherwise leave blank
• Enable access protocols that you are going to need. For security reasons, do not enable more than is necessary.
• HTTP(S) – allow access to the web interface.
• Telnet – enabling access to the CLI interface using telnet protocol.
• SSH – enabling access to the CLI interface using SSH protocol.
• Management VLAN – Enabling 802.1Q VLAN tag for separation of user and service operations.
• Management VLAN id – Defining 802.1Q VLAN tag for service operations.
Fig. 3.4: Configuration menu Link settings / Service access / Services
For full explanation of all possibilities of this screen see the section called “Services”.
47© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide

3.1.4. Creation of users

Menu Link / Service access / Users
It is recommended to create user accounts managed by the main user already in this phase (for example a user with rights limited to read-only access). Following actions are available:
• Edit - enter the menu.
• New password – choose a password and enter it.
• Confirm password – enter the password again to confirm.
Fig. 3.5: Configuration menu Link settings / Service access / Users
For full explanation of all possibilities of this screen see the section called “Users”.
RAy3 Microwave Link – © RACOM s.r.o.48
Step-by-step Guide

3.1.5. Applying Feature keys

Menu Maintenance / Feature keys
The firmware of the microwave link is capable of controlling several features (for example the maximum user data speed, maximum Tx power, etc.). It is recommended to install all separately purchased feature keys prior to physical installation to allow all expected features of the link to be usable after the install­ation.
Fig. 3.6: Configuration menu Maintenance / Feature keys
Note
Speed keys purchased with the unit are installed in the factory (and can be double checked within this menu). Key for limited Tx power is not installed except specifically ordered. If RCinfo limits the maximum power, it can not be overruled by feature key with the higher Tx power.
For full explanation of possibilities of this screen see the section called “Feature keys”.
49© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide

3.1.6. WiFi settings

Menu Link / Service access / USB accessories
Go to menu Link Settings / Service Access / USB accessoriesand enter WiFi password or disable WiFi completely. Standard settings are that Enable on Air link loss is ON (when the link is down, WiFi is activated; when link is OK, WiFi will be deactivated in few minutes) and Force Enable is OFF (activates WiFi permanently). Passphrase has to be set, otherwise the WiFi is unsecured and system warning is active.
Fig. 3.7: Configuration menu Link settings / Service access / USB accessories
Note
If you access the unit over WiFi, do this step as last action before reboot (as the WiFi con­nection will be interrupted and new connection with new password would be required to continue the work).
For full explanation of possibilities of this screen see the section called “USB accessories”.
RAy3 Microwave Link – © RACOM s.r.o.50
Step-by-step Guide

3.2. Basic link configuration

Default radio parameters depend on the specific type of link and the specific channel allocation table. Channels are typically set in the lower part of the band, the smallest bandwidth, QPSK modulation, and low power. Both units in the pair should be capable of immediate communication. If it is possible to work with these radio parameters at the installation location, the link can be activated. On an operating link the required operating parameters can then be set up.
If a change in the parameters is necessary, it is done in the menu Link settings / Radio and saved by clicking Apply. This applies when working on both units simultaneously if they are connected, otherwise each unit is configured individually. When configuring units individually, pay attention to correct settings of duplex pair for channels TX and RX. For example, if one station has TX channel L1, then the second station must also have the channel RX L1.

3.3. Link test

Verify the functionality of the radio link:
Switch in screen Status / Brief.
Status Bar displays Link: Ok. If the alarm message appears at Local or Peer, this doesn’t necessarily mean there is a problem. The message indicates that the limit at any of the monitored parameters has been exceeded. Essential is the "Link: Ok" message on the status bar.
The Status screen contains values for both Local and Peer units. N/A next to Peer indicates that the data from the Peer unit has not been transferred. If Link is Ok, simply click Refresh at the bottom of the screen and Peer data will be updated.
Menu Status / Detailed / Radio indicates link RSS and SNR values, in case of ACM also the selected modulation and Netbitrate. If the ATPC function is enabled (menu Link settings / Radio) it also indic­ates instantaneous / max. allowed power and for SNR and RSS values it indicates immediate / target value size.
Menu Tools / Live data / Bar indicators displays current size of RSS, SNR and BER.
Menu Tools / Programs / Ping allows you to send a ping test to the selected IP address.
Try out the possibility of modulation:
Modulation ACM. In menu Link settings / Radio enable ACM. Set the TX modulation parameter to the required maximum value. In menu Status / Brief / Radio you can monitor (Refresh or Start) changes in used modulation based on the instantaneous SNR signal quality.
To set a fixed modulation go to Link settings - Radio, switch off ACM and set the TX modulation to a value from the range of QPSK through 256-QAM based on the results of the previous test. If you choose modulation higher than allowed by SNR, the connection will be lost. Status Link will lose its Ok value. Both units will need to be moved closer to resume the link. If this is not possible, use the ethernet to access each unit individually and set the basic modulation QPSK.
Verify the functionality of the entire link:
• If possible, connect user devices to both RAy units over PoE and test mutual communication.
• Another way of testing this is to connect a PC to the other unit and send a ping from one PC to the other.
• The minimum variant of this test is to use an ethernet cable connection from the PC connected to the local RAy to the PC connected to the remote RAy and test communication between both units over ethernet. This will verify ethernet functionality.
51© RACOM s.r.o. – RAy3 Microwave Link
Step-by-step Guide
Prepare installation configuration:
• Bandwidth e.g. 3.5 MHz. To get the highest possible receiver sensitivity, set the bandwidth as narrow as possible according to specific frequency band.
• TX channel: Use your allocated channel. If you do not have allocated channel yet, use for example channel L1.
• RX channel will setup automatically when channel lock activates.
• Set TX modulation QPSK to get the highest possible sensitivity.
• Set RF power according to selected antenna and according to individual frequency licence. Set the output power as high as possible.
Set a new users access passwords.
• Record the access parameters from the Service access menu, especially the IP addresses.
• Restart by interrupting the power supply to verify that the parameters are stored correctly and the link works.
After this preparation phase you can continue to install your devices in a working environment.
RAy3 Microwave Link – © RACOM s.r.o.52
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Installation

4. Installation

4.1. Line of sight test

Before you install the device to a mast tube, verify visually that the view in the direction of the remote unit is unobstructed.
Line of sight considerations:
• Free Fresnel zones. Signal needs space wider than the diameter of the antenna.
• Trees at the lower end of the Fresnel zone. They will be taller in a few years.
• Possible building development.
• Objects in the close proximity of the antenna such as edges of other antennas, their mounting racks, edges of the roof.
Fig. 4.1: Fresnel zone

4.2. Antenna mounting

Antenna mounting depends on the antenna vendor, antenna type and the size of the chosen antenna. The result of any antenna installation is that it is fixed to the mast, pointing to the right direction and its waveguide and fixing screws are ready for mounting RAy unit to it.
Fig. 4.2: Antenna mounting
53© RACOM s.r.o. – RAy3 Microwave Link
Installation
Fig. 4.3: Fixing screws
Common for all antennas is a holder which ensures:
• fixing of the antenna to the mast
flexibility in two planes (necessary for antenna adjustment to the proper direction).
Each holder allows at least 2 methods of mounting antenna on the mast tube:
• right-side mounting
• left-side mounting
Following sections describe in detail installation of antennas, mounting kits and/or flexible waveguides, so the antenna is ready for mounting RAy unit to it. Choose below a chapter relevant for your antenna supplier and installation manual according to antenna type and size.
Note
Each antenna allows RAy unit to be mounted on it with horizontal or vertical RX polarization. This is discussed in detail in Section 4.3, “RAy unit mounting”.

4.2.1. LEAX-RAy antenna mounting

Mounting instructions for each LEAX-RAy antenna are shipped with each antenna. Identical mounting instructions are available within RACOM RAy download1section, on our website. See list below:
Installation of 30cm antennas - ANT-LEAX-300-inst.pdf
Installation of 60cm antennas - ANT-LEAX-600-inst.pdf
Installation of 90cm antennas - ANT-LEAX-900-inst.pdf
1
https://www.racom.eu/eng/products/microwave-link.html#download
2
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-300-inst.pdf
3
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-600-inst.pdf
4
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-900-inst.pdf
2
3
4
RAy3 Microwave Link – © RACOM s.r.o.54
Installation
optionally with standard strut - ANT-LEAX-strut-std-inst.pdf
Installation of 120cm antennas - ANT-LEAX-1200-inst.pdf6(includes standard strut)
optionally with extra strut - ANT-LEAX-strut-extra-inst.pdf
Installation of RAy interface for LEAX-RAy antennas - ANT-LEAX-RAy-inst.pdf
5
7
8
(same for all sizes). The RAy interface is part of each LEAX-RAy delivery (one interface set per antenna). It needs to be mounted to each antenna according to the instruction manual before mounting the RAy unit. Four pcs M8x30 (Allen) screws to mount the RAy unit to the antenna are also part of the antenna delivery.
Item ANT-LEAX-STRUT-90 (for 90 cm antennas) respectively ANT-LEAX-STRUT-120 (for 120 cm antennas) allows to increase operational wind speed up to 65 m/s (instead of 50 m/s respectively 55 m/s). Also allows to use tower pipe Ø50-120 mm (instead standard Ø90-120 mm).
Ensure the pin lubrication is completed during assembly.

4.2.2. Jirous antennas mounting

Mounting instructions for Jirous antennas are available on the manufacturer's website http://en.jirous.com. Mounting is also described in detail on RACOM RAy download9section:
Installation of Jirous antennas ANT-JRM-inst.pdf
10
4 pcs M8x30 (Allen) screws to mount the RAY unit to the antenna are part of the antenna delivery.
Item SET-JRMB-1200-FIX or SET-JRMB-1200-ADJ (optional wind bracing sets, both for 120 cm anten­nas) allows to increase operational wind speed for extreme sites.
Ensure the pin lubrication is completed during assembly.

4.2.3. Other antennas mounting

Antenna which do not have a direct interface to RAy needs also a proper antenna mounting kit or a flexible waveguide with a mounting kit for it. Such interface has to be installed prior to RAy unit install­ation to the antenna.
Antenna mounting kit can be ordered as an accessory part (one per antenna). It has to be chosen ac­cording to selected band and antenna vendor - see Overview of currently available types. Any other antenna can be connected to the RAy by standard flexible waveguide. RACOM offers mounting kits (RAy holders) for different flexible waveguides (see Accessories and the picture Flexible waveguide).
Standard mechanical tools are enough to install each of those accessories.
5
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-900-strut-inst.pdf
6
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-1200-inst.pdf
7
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-1200-strut-inst.pdf
8
https://www.racom.eu/download/hw/ray/free/eng/04_1_anteny/ANT-LEAX-RAy-inst.pdf
9
https://www.racom.eu/eng/products/microwave-link.html#download
10
https://www.racom.eu/download/hw/ray/free/eng/04_anteny/ANT-JRM-inst.pdf
55© RACOM s.r.o. – RAy3 Microwave Link
Installation
Antenna mounting kit for Arkivator antennas
Items "SET-RAYxx-ARK" (where xx is the band) fits all traditionally produced Arkivator antennas (from company Arkivator, acquired by LEAX Group) as well as today produced Arkivator antennas from company LEAX Arkivator Telecom sold without RAy interface.
NOTE: All LEAX-RAy antennas listed in the RACOM portfolio contain specific RAy interface and thus no mounting kit is required.
Antenna mounting kit for Andrew antennas
Items "SET-RAYxx-ANW" (where xx is the band) fits most of Andrew antennas manufactured by CommScope with specific vendor's interface unmounted. RAy3-17 and RAy3-24 need Dual polarized antennas.
for 17 GHz band use SET-RAY17-ANW and order the following dual-polarized antenna types:
VHLPX1-18W/A 30 cm VHLPX2-18W/A 60 cm VHLPX3-18W/A 100 cm NOTE: The antennas labelled for 17.700 - 19.700 GHz band are also OK for 17.100 - 17.300 GHz band (confirmed by CommScope).
for 24GHz band use SET-RAY24-ANW and order the following dual-polarized antenna types:
VHLPX1-26W/A 30 cm VHLPX2-26W/A 60 cm VHLPX3-26W/A 100 cm NOTE: The antennas labelled for 24.250 - 26.500 GHz band are OK for 24.000 - 24.250 GHz band (con­firmed by CommScope).
NOTE: Ordering codes with "-W/A" at the end means one of suitable types of waveguide (vendor's interface), must be unmounted before installation of RAy antenna mounting kit. Ordering codes with "-GDC" at the end means no vendor's interface, so nothing needs to be unmounted in such a case.
If there is a requirement to connect different type of antenna (for example some newer antenna type), it is possible to modify the existing adapter to meet new requirements.
Flexible waveguide
Flexible waveguide mounting kit can be ordered as an accessory part.
RAy3 Microwave Link – © RACOM s.r.o.56
Installation
Fig. 4.4: Flexible waveguide assembly
Flexible waveguides themselves are not offered by RACOM - please consult your antenna supplier.
Ensure the pin lubrication is completed during assembly.

4.3. RAy unit mounting

RAy unit can be attached to several different models of antennas from several vendors. Installation of RAy unit on to LEAX-RAy or Jirous antennas or to any other antenna through proper RAy mounting kit (eventually with flexible waveguide) is very simple and it is identical for all antennas and mounting kits. Installation starts with the lubrication of antenna pivot, followed by fixing the RAy unit in a proper position to the antenna and finished by unit grounding to the mast – as described in following sections.

4.3.1. Lubrication of the antenna pivot

Before fitting the RAy bushing to the antenna pivot ensure the "O" ring (part No. 1) is in the correct position. It is also essential to prevent moisture getting in between these two parts. This moisture could cause oxidation which would complicate disassembly of this mechanical coupling in the future. For this reason we need to treat these surfaces with the grease which is supplied in the box marked "SILIKONOVE MAZIVO". If you use a different grease for lubrication then it should be a Teflon or a silicon grease.
Fig. 4.5: Grease points on the antenna pivot and RAy unit bushing
Lubricate both the internal area of the bushing on the RAy unit (2) and the "O" ring (1) with a thin even layer that allows the pin to slide easily into the bushing without damaging the "O" ring. The layer has to be really thin and even to ensure no grease is pushed in to the waveguide. A little bit more grease
57© RACOM s.r.o. – RAy3 Microwave Link
Installation
may only be applied in the area (3) beyond the "O" ring on the antenna pin to optimally fill the small gap (max. 0.1 mm) between the pin and the bushing to prevent leakage of moisture and water into the unit. Installation should be carried out according to the antenna installation instructions.
A tub of grease is supplied with each RAy unit.
Important
Lubrication is a very important assembly step for every RAy unit. Failure to lubricate the unit can lead to operation­al and assembly complications.
Fig. 4.6: Silicone grease

4.3.2. RAy unit mounting to the antenna

Each antenna allows RAy unit to be mounted on it with different polarization:
• horizontal TX polarization
• vertical TX polarization
Fig. 4.7: Horizontal and vertical TX polarization – see the arrow sign
In all cases mount the unit with the connectors facing downwards at an angle.
Note
RAy3 links need one unit to be installed with vertical polarization and the other unit with horizontal polarization because these units use cross polarization.
RAy3 Microwave Link – © RACOM s.r.o.58
Installation
Fig. 4.8: RAy3 unit with antenna (left-side mounting and horizontal polarization)
RAy unit is fixed to the antenna by 4 pcs M8x30 (Allen) screws, which are part of the delivery of each antenna or each mounting kit. Those should be partially unscrewed so that the unit can be slid on to them. Then check whether the "O" ring is correctly fitted on the antenna pin, and make sure it is not damaged and has been lubricated with grease – see Section 4.3.1, “Lubrication of the antenna pivot” above.
Then remove the protective plastic cover from the central pin of the antenna and fit the unit flange (located in the center of flat part of RAy unit, across the holder) to it carefully not to damage the "O" ring. Once the RAy unit is plugged to the antenna pin, turn RAy clockwise so its screw-holders fit the right position for all 4 screws. Carefully ensure the correct polarization of the unit – see Section 4.3.2, “RAy unit mounting to the antenna” and secure the RAy unit in place with all four bolts. Finally, gently tighten the bolts with a No. 6 Allen key.
Important
Gently tightening all 4 screws is enough. Do not over-tighten any screw, it may damage the protective color surface of the aluminum unit (enforcing corrosion processes) and in the case of an extreme force also deformations of the RAy aluminum cover may happen. Later de-installation of the unit then becomes difficult.
Please ensure that all 4 screws are tightened equally during tightening and the gap between RAy screw-holders and spacers on all 4 sides of the RAy unit is approximately identical. Too strong tightening of one or 2 screws on one side of RAy unit may lead to the deformation of the sensitive zone of the waveguide between the antenna and the unit, resulting in weaker radio parameters.
Even a small residual gap between RAy unit and the antenna is OK, because important is a good connection of waveguide – it is good enough even with screws gently tightened. NOTE: on older LEAX-RAy antennas (shipped during the year 2017) the residual gap under each screw-holder on RAy and antenna body may be up to 1 mm.

4.3.3. RAy unit grounding

RAy unit has to be properly grounded, otherwise it can not be guaranteed its function and it can be even damaged. Grounding connection through antenna and its holder is not enough (due to color surface, oxidation etc.), thus a separated grounding is required to ensure the perfect galvanic connection.
59© RACOM s.r.o. – RAy3 Microwave Link
Installation
Important
The RAy unit has to be grounded before connecting to the power supply and/or to the user network.
Typically the unit is grounded to the antenna mast, which has to be properly grounded (according to Fig. 4.19, “Grounding installation 1” and Fig. 4.20, “Grounding installation 2”, where unit grounding to the antenna mast is marked by yellow-green cable).
The RAy unit is grounded to the flange at the fixing screws using an M8 screw. An insulated copper cable with a minimum cross-section of 6 mm2terminated with a terminal lug is used as a protective conductor. The conductor should have a green/yellow plastic cover along its whole length. The RAy grounding kit can be ordered as an accessory (see Chapter 2. Accessories) containing a grounding terminal ZSA16, 40 cm grounding strip 15 mm wide, and 100 cm of cable with grounding lugs. For in­structions on installing terminals see the datasheet RAy grounding kit11. The antenna must be installed by a qualified person.
Properly installed unit grounding kit (from RACOM accessory) is documented on photos below.
Fig. 4.9: Protective conductor at the RAy unit Fig. 4.10: Grounding the RAy unit
Fig. 4.11: RAy grounding kit
Fig. 4.12: Protective conductor at the mast on a ZSA16 terminal
11
http://www.racom.eu/download/hw/ray/free/eng/07_prislusenstvi/ZSA16-en.pdf
RAy3 Microwave Link – © RACOM s.r.o.60
Installation

4.4. Connectors assembly and disassembly

The unit is equipped with 3 standard connectors described in detail (including connectors’ pin-outs) in Section 1.3, “User interfaces” and Section 1.4, “Service interfaces”. Use only standard counterparts to these connectors.
Fig. 4.13: Slots ETH1+POE, ETH2 Fig. 4.14: Slot S
A set of standard bushing and plugs is delivered with each RAy unit as an accessory SET-RAY3- CON. The rubber sealing for each bushing is delivered with three different internal diameters to fit different cable diameters. The rubber is diagonally cut to enable sealing of cables with pre installed connectors.
If the lengthening of the bushing is needed use the short extension SET-RAY2-EXT35 (adds 35 mm length, parts No.6 + No.7 on pictures below) or the long extension SET-RAY2- EXT-F50 (adds up to 50 cm).
Important
Before connecting the RAy unit to the power supply and/or to the user network it must be grounded according to Section 4.3.3, “RAy unit grounding”
All cables have to be secured by appropriate bushings which must be fitted with relevant O-rings and carefully tightened in, according the instructions below.
Remaining connector slots on RAy unit has to be secured by plugs (including the original plugs in the flanges). Those must be fitted with O-rings and carefully tightened as well. Otherwise, the unit is not protected against moisture intake through connectors and can not guarantee unit functionality.
61© RACOM s.r.o. – RAy3 Microwave Link
Installation
Assembly procedure:
Fig. 4.15: Short bushing assembly for metallic Ethernet with short ETH connector
Fig. 4.17: Bushing including short lengthening (for metallic Eth with longer connector or for non-OFA fibre optic cable)
• Put on the cable: the nut No.1, rubber sealing No.2, bushing No.3 and O-ring No.4. (If you use extension ring No. 6 with O-ring No.7 put those on the cable as well.)
• Attach the appropriate connector No.5 to the cable.
• Plug the connector No.5 into the RAy3 unit. (If you use extension ring No. 6 with O-ring No.7, lubricate its thread with grease and screw those into the RAy3 unit.)
• Screw the bushing No.3 with the sealing O-ring into the RAy3 unit.
• Move the rubber sealing (2) along the cable to fit in the bushing. Screw the nut (1) on bushing (3).
• (If you use extension ring No. 6 with O-ring No.7 lubricate its thread with grease.)
Fig. 4.16: Bushing and optical Ethernet assembly (with RACOM / OFA fibre optic cable)
Tip
Practical tip: Screw the ring No.6 and bushing No.3 quote tightly, so they could not rotate when the nut No.1 is screwed (or released later on). Not doing so could damage the cable by twisting it during sealing. It can also create the issue later on when the nut No.1 is released (and ring No.6 or ring No.3 releases first).
RAy3 Microwave Link – © RACOM s.r.o.62
Installation
Disassembly procedure:
• Release the nut No.1
• Remove the rubber sealing No.2
• Unscrew the bushing No.3 with O-ring No.4 (and extension No.6 with O-ring No.7).
• Remove the connector.
Warning
It is absolutely critical first to completely release and disassemble the nut No.1 and remove the rubber No.2. Failure to do so could cause the damage of Ethernet cable or fibre optic wire by cable rotation. Even connectors inside the RAy unit can be damaged. Should the rubber sealing No.2 become fastened to the cable and/or to the plastic bushings, the rubber sealing must be detached from the cable by a brute force. We suggest you use a flat screw driver to release the rubber sealing No.2.
It is always better to optionally damage the bushing rather than damage a cable or components inside the RAy unit.
At the outer end of the long lengthening there is necessary to use a flat ring supplied as part of the SET-RAY2-EXT-F50. On other places O-rings are used. See next Figure:
Fig. 4.18: Bushing including long lengthening
Important
When using other bushing or connector than the delivered there is a danger of bad seal
• or damaging the connector. Interior space can be small.
63© RACOM s.r.o. – RAy3 Microwave Link
Installation

4.5. Grounding and overvoltage protection

The proper grounding together with surge protection components should be installed on site to increase the resiliency of the whole installation against natural overvoltage situations (stimulated by storms, lightning and other atmospheric issues). Such a system has to respect local standards for grounding and electromagnetic protection, otherwise the risk of damage of the unit and/or connected IT infrastruc­ture gets much higher. We also recommend to consult each site situation with local experts to ensure the installed grounding is enough for the actual site conditions and that the overvoltage protection of sensitive components or infrastructures is reasonably effective against typical situations on site.
The rule is that every metallic component of wireless infrastructure located outside the building (in LPZ0) should be properly grounded and protected against overvoltage, especially:
grounded RAy unit itself (as described in Section 4.3.3, “RAy unit grounding” )
• grounded all shields from all metallic Ethernet cables
• grounded all DC cables (shields or one wire)
• overvoltage protection is applied on all metallic Ethernet cables at the point of entrance to the building
• overvoltage protection is applied on DC cable at the point of entrance to the building
All types of cables should be grounded and longer cables should be grounded in several places (outside the building every few meters). Overvoltage protective devices are available for all types of cables and usage. Accessories offered by RACOM for those purposes are listed in Section 2.1, “Overview ” and described in detail in Section 2.2, “Details ”
Important
The unit and mast must be properly grounded before the power supply and/or the user network are connected to RAy unit.
Warranty does not apply for units destroyed by surges or over-voltage (see RACOM warranty conditions at Section 10.6, “Warranty” ).
Note
Some PoE power sources, PoE injectors and DC power supplies have overvoltage / surge protection built in. Please consult the datasheets of those versus the local standards and site requirements.
On sensitive sites additional overvoltage protection should / could be applied between dif­ferent zones (or rooms) even within one building (for example between network center and datacenter).
LPZ acronym means Lightning Protection Zone.
The example and rules below are designed in accordance with regulation EN 62305.
1. Where possible the antenna should be located in an LPZ 0B protection zone with the use of a local or artificial air termination device for protection against direct lightning strikes.
2. When meeting conditions for ensuring electrical insulation (distance from the lightning conductor) in accordance with article 6.3 of this standard, it is not recommended to ground the load-bearing structure and antenna to the external air termination network. Grounding should be attached to the protective system of the internal LV (Low Voltage) wiring or grounded internal structures using a CYA 6 mm2bonding conductor , see Fig. 4.19 Grounding installation 1.
RAy3 Microwave Link – © RACOM s.r.o.64
R
ETH
ETH
230 V~
PoE
LPZ 0
A
LPZ 0
B
LPZ 1
LIGHTNING
ARRESTER
ETH
ETH
230 V~
PoE
R
LPZ 0
A
LPZ 0
B
LPZ 1
GROUNDING KIT
LIGHTNING ARRESTER
Bonding bar
Installation
Fig. 4.19: Grounding installation 1
Fig. 4.20: Grounding installation 2
65© RACOM s.r.o. – RAy3 Microwave Link
Installation
3. If it is not possible to set up conditions of electrical insulation in accordance with article 6.3 of this standard, we recommend connecting the load-bearing structure at roof level to the external air ter­mination network via an 8mm diameter FeZn conductor and shielding the data cable before entry to the building with a grounding kit and CYA 6 mm2conductor to the bonding bus, and if not already set up then also to the external air termination network, see Fig. 4.20 Grounding installation 2.
4. If there is not an external LPS on the building we recommend routing lightning current through an 8mm FeZn conductor to a common grounding system, or to a separate grounding electrode with a ground resistance up to 10 Ω.
5. For limiting the overvoltage transferred over the data cable and into the building we recommend fitting surge protection at the interface between zones LPZ 0 and LPZ 1 connected via a CYA 4 mm conductor to the same grounding point as the antenna or the antenna mast.
6. We recommend protecting the PoE power supply from overvoltage on the LV side with suitable class D surge protection.
Racom supplies surge protection for installation on Ethernet cables entering buildings. For more details see Surge protection12.
Additional safety recommendations
• Only qualified personnel with authorisation to work at heights are entitled to install antennas on masts,
roofs and walls of buildings.
• Do not install the antenna in the vicinity of electrical wiring. The antenna and bracket should not
come into contact with electrical wiring at any time.
• The antenna and cables are electrical conductors. During installation electrostatic charges may build
up which may lead to injury. During installation or repair work to parts of the antenna lead, bare metal parts must be temporarily grounded.
• The antenna and antenna cable must be grounded at all times.
2
• Do not mount the antenna in windy or rainy conditions or during a storm, or if the area is covered
with snow or ice.
• Do not touch the antenna, antenna brackets or conductors during a storm.
12
http://www.racom.eu/eng/products/microwave-link.html#accessories_ochrana
RAy3 Microwave Link – © RACOM s.r.o.66
Installation
Fig. 4.21: Grounding Kit universal for 5-11mm cables
Fig. 4.23: Grounding kit for S/FTP 4+2 cable Fig. 4.24: Grounding kit detail
Fig. 4.22: Grounding Kit for 5-11mm cables, assembled
67© RACOM s.r.o. – RAy3 Microwave Link
Installation
Fig. 4.25: Separated lightning conductor
NOTE: It is always better not to install the microwave unit directly under the lightning conductor holders. There is lower probability of unit being polluted by birds.
It is necessary to install the Ethernet lead so that there is no excessive mechanical stress applied on the connector bushing:
Fig. 4.26: Example of a correct lead installation.

4.6. Power supply

RAy microwave unit can be powered by active PoE, passive PoE or by DC power source. All variants of power are supplied through RJ45 Ethernet connector (in slot ETH1+POE). Detailed description and technical parameters of the connector is described in Section 1.3.1, “RJ45 ( ETH1+POE )”.
RAy3 Microwave Link – © RACOM s.r.o.68
Installation
RACOM is offering all kinds of power supplies, all guaranteed for compatibility with RAy unit and tested for long-term stability – they are listed in Section 2.1, “Overview ” and described in detail in Section 2.2, “Details ”.

4.6.1. PoE power sourcing

• Active PoE plus (called also Standard PoE+) power supply compatible with IEEE 802.3at, sourced by AC or DC power. The standard IEEE 802.3at defines negotiation method, wires to be used, oper­ating voltage (36-56V), maximum supported current, overcurrent protection and other parameters. Any power supply compatible with IEEE 802.3at standard can be used.
• Passive PoE power supply (called sometime PoE injector), is an equipment pushing to the pins of Ethernet connector DC power with a polarity and voltage compatible with IEEE 802.3at standard. Thus, supported voltage, distances, grounding and internal RJ45 pins wiring are identical with Standard PoE+ (mentioned above). Typically, the current is sourced from a DC power with adequate parameters (voltage 40-60V, max current at least 1A). The only additional requirement is that non­grounded wire of DC power circuit in the PoE injector has to be secured by a fuse disconnecting the power circuit in the case of over current (similar like for DC power source connected directly to the RAy unit by a DC connector).
Note
Quality CAT7 Eth cable (i.e. shielded one) with UV protection is recommended for outside use.
Quality connectors (like CON-RJ45-TLG-CAT6) are recommend to be used on both ends of Ethernet cable to ensure long-term reliability of the connection. Such connectors have better resistance against oxidation and also against scorching contacts due to spikes during power-on and power-off the unit by plug / unplug Ethernet cable. Anyhow standard Eth cable with standard Eth connectors should work as well.
Overvoltage protection unit is recommended to be applied between RAy unit and PoE power supply – for details see Section 4.5, “Grounding and overvoltage protection” (easily visible on Fig. 4.19, “Grounding installation 1”).

4.6.2. DC power sourcing

Direct DC power input for RAy3 unit described in Section 1.3.3, “DC power ( ETH1+POE )” requires the use of DC-RJ45 adapter.
• Any kind of DC power source with supplied DC voltage in the range 20-60 V and with enough power for the RAy unit plus energy loss on the DC cable. (For RAy3-17 and RAy3-24 the minimum is 25 Watts). If a longer DC cable than few meters is used, then Watts of power supply has to be adequately higher to cover the power loss within the DC cable.
• RAy3 internal DC power circuits accept both polarities and they ensure galvanic separation of power source line from the RAy unit itself. This simplifies the DC power circuits installation.
• The DC power circuit must be fitted with a fuse to protect against short circuiting (or power supply has to have such a fuse built-in).
69© RACOM s.r.o. – RAy3 Microwave Link
Installation
Note
Typically, DC wires have cross-section 1.5 mm2. DC contacts on DC-RJ45 adapter are designed for this cross-section.
DC-RJ45 adapter occupies ETH1+POE port on RAy3 unit. When used, Ethernet connection to the unit has to be made through ETH2 port. Possible solutions are described in section NOTE at the end of Section 1.3.3, “DC power ( ETH1+POE )”.
• If shielded DC power cable is used, then shield should be grounded by a proper Grounding kit to the mast or directly to the Grounding screw on RAy unit.
• If the galvanic separated power source is used and the DC power line needs to be grounded (either positive or negative wire), the connection of one DC line to the ground should be made by a proper Grounding kit to the mast. Possible is also to use a small piece of DC cable to connect the line to be grounded directly to the Grounding screw on RAy unit. For more details see Section 4.5, “Grounding and overvoltage protection”.
RAy3 Microwave Link – © RACOM s.r.o.70
Installation

4.7. Start up

Connect a power supply to the installed RAy unit. Connect the device to be used for configuration via WiFi or ethernet cable. Access the configuration menu using browser or Alignment tool.

4.7.1. Noise on the site

This is particularly true for installation of links working in free bands, where the user has no secured frequency.
Analyse the level of noise in the individual channels using the spectrum analyzer under Tools/Live data/Frequency spectrum analyzer. If necessary adjust the choice of working channel on the basis of the results.
While doing so respect the rule that in one location all units emit a signal in the Upper part of the range and receive it in the Lower part of the range, or the other way round. A transmitter must not be installed in the part of the spectrum where other units function as receivers.

4.7.2. Directing antennas

• For first antenna alignment, use a narrow channel, low modulation and high power where possible.
• ATPC and ACM functions should be switched off (prevents Tx power fluctuations during alignment).
• Where possible adjust both ends of link simultaneously to speed up the process.
• Alternate adjustments at both ends of link in small increments both horizontally and vertically to es­tablish position with strongest signal whilst looking for maximum main signal (see paragraph on main & side lobes).
• RSS measurement chapter provides overview for available methods to measure RSS.
RSS measurement
To align antennas accurately connect a PC, tablet or mobile and use the diagnostic and measurement capabilities built in to the RAy unit. There are 4 tools available to support measurement of the 2 basic parameters for optimum antenna alignment: RSS (Radio Signal Strength) and SNR (Signal to Noise Ratio):
1. Voltmeter – indicates local RSS
2. RAy Tools smartphone application – indicates RSS, SNR - Local & Peer
3. Antenna Alignment Tool web page – indicates RSS, SNR – Local & Peer
4. Bar graph on Live Data page inside web manag. – indicates RSS, SNR, BER – Local & Peer
Before antenna alignment starts it is recommended to find out RSS and SNR values from the link design for the installed link or calculate these values yourself. There are 4 methods available with increasing levels of accuracy:
Module Calculation inside RAy Tools smartphone application
Link calculation on RACOM website
13
• Use Link calculation chapter in Application notes
• Precise link calculation using dedicated tools (e.g. Pathloss)
13
http://www.racom.eu/eng/products/microwave-link.html#calculation
71© RACOM s.r.o. – RAy3 Microwave Link
Installation
Voltmeter
RAy units support traditional antenna alignment using a volt­meter measurement representing RSS in dBm (only for a local unit). Connect a voltmeter with the range 2V DC via connectors to the operational unit and adjust antennas to the lowest indicated voltage. Voltage is calibrated according to signal strength. E.g.: RSS -65 dBm corresponds to voltage 0.65 V, RSS -80 dBm corresponds to voltage 0.80 V etc.
RAy Tools – smartphone application
RAy Tools is an application described in detail in Chapter 7. RAy Tools app for Mobile devices . Module Alignment displays RSS and SNR for both local and peer RAy unit. All key func­tionality in this module performs an identical function to An­tenna Alignment Tool described in Section 5.6.2 Live data .
More about RAy Tools in Chapter 7. RAy Tools app for Mobile devices .
Antenna Alignment Tool – html page within unit management
Antenna Alignment Tool is optimized for devices with smaller displays. All values are refreshed ten times per second to enable smooth operation. The Antenna Alignment Tool is de­scribed in Section 5.6.2 Live data . The Tool is available on http://<ip>/tk, (e.g. http://192.168.169.169/tk for standard Ethernet ports, alternatively on http://172.17.17.17/tk in the case of connection through USB/WiFi or USB/Eth).
The Tool is accessible without any username or password.
Bar graph in web management
Within user management Tools / Live data / Bar indicators shows bar graphs of RSS, SNR and BER (Bit Error Rate) values for local and peer units. Values are refreshed every second or manually. See Section 5.6.2 Live data . for detailed information.
NOTE: The BER value should be close to zero after antenna alignment.
RAy3 Microwave Link – © RACOM s.r.o.72
A n ten n a
Angle of T / Rx x
M a in l ob e
B a ck l ob e
S i de l ob e s
0
90
-90
0
0
0
0-180
Angle (Degrees)
Directivity (dBi)
Main l obe
Side l obe s
Side l obe
level
18030 60-60 -30
Installation
Main and side lobes
Directional antennas have a specific angle within which radio waves can be transmitted or received (Angle of Tx/Rx).
The strongest signal is emitted in a forward direction; the main lobe is a graphical representation of its direction of travel and strength. However signals are also emitted and received from unwanted directions through side lobes. In receiving antennas this is a highly significant factor contributing to the level of interference in a radio network (See Antenna lobe diagram ).
Fig. 4.28 Signal strength graph provides an indication of comparative signal strength from different beams emitted from a directional antenna.
Fig. 4.27: Antenna lobe diagram
Fig. 4.28: Signal strength graph
Placing the antennas to the correct antenna alignment is very important to ensure the strongest signal is received:
Fig. 4.29: Correct alignment diagram
73© RACOM s.r.o. – RAy3 Microwave Link
5
4
-40°
0
10
20
-10
G[dbi]
-20° 20° 40°
6
-40°
0
10
20
-10
G[dbi]
-20° 20° 40°
-40°
0
10
20
-10
G[dbi]
-20° 20° 40°
2
1
3
A – A
B–B C–C
CROSS-SECTION A –A
CROSS-SECTION C – C
-40°
0
10
20
G[dbi]
-20° 20°
MAIN BEAM
SIDE LOBE
A A B B
C C
40°
2
1
3
6
4
5
Installation
Examples
Fig. 4.30: Radiation diagrams
Both antennas should be oriented towards each other using the peaks of the radiation diagram. Adjust the antenna alternately in the horizontal and vertical axes and monitor the resulting signal strength. Use the calculation of the expected RSS with the precision of several dBm as guidance. Side lobes transmit a signal ca 20 dBm weaker, see the Microwave link Calculation14.
14
http://www.racom.eu/eng/products/microwave-link.html#calculation
RAy3 Microwave Link – © RACOM s.r.o.74
The resulting RSS helps distinguish between the states A-A and C-C which appear similar. It also helps in situations where simple search for a maximum doesn’t work as shown in the illustration “incorrect adjustment”.
Real radiation diagrams are more complex, especially in that they run differently in horizont­al and vertical axes. The basic steps for determ­ining the main radiation lobe however stay valid. For example:
Installation
Fig. 4.31: Radiation diagram – incorrect adjustment
Fig. 4.32: 3D example of more complicated Radiation Pattern
75© RACOM s.r.o. – RAy3 Microwave Link
Installation

4.7.3. Link test

Basic parameters of the link are shown in the menu Status/Brief, its quality is characterized by RSS and SNR. Values on Status screens can be refreshed manually by pressing the Refresh button or in real time with a period of several seconds after activating the Start button. Press the Stop button to terminate the periodic refresh of values.
The RSS, SNR and BER values can also be viewed on the screen Tools/Live data/Bar indicators. After pressing the Start button, values will be refreshed with a period of one second.
After installation, it is good to reset the statistics using the Clear stats button in menu Status/Detailed. This allows easier diagnostics of the link’s reliability over time.

4.7.4. Parameters setup

After both antennas have been aligned, setup operation parameters for the link. In the case of links operating in the free band, setup the parameters based on survey results from the tool Tools/Live data/Frequency analyser. In the case of links operating on a licensed band, setup the parameters based on the assigned license:
• Bandwidth
• Channel Selection (TX / RX channel)
• Modulation (TX modulation) – ACM is recommended. When selecting fixed modulation it is necessary to account for the fade margin. If fixed modulation is setup close to a possible maximum, then a de­terioration in RSS could endanger the link both for data transfer as well as service access.
• Transmit power (TX power), or ATPC
• Verify and record IP addresses
• Define access channels – https / telnet / ssh / ssh with password
Check the users password settings.
Restart both units by interrupting their power supply and verify the status of the link. This verifies that all parameters have been stored correctly in the memory.
Select Tools/Maintenance/Backup/Settings (Local & Peer)/Full and save the configuration to backup file “cnf_backup.tgz”.
This completes the installation. Further configuration can be performed remotely.
RAy3 Microwave Link – © RACOM s.r.o.76

5. Configuration

5.1. Introduction

Controls
The following configuration buttons are used for configuration:
Apply and save parameters.Apply Set parameters are overwritten with original values.Cancel Reload all current values of the unit / both units.Refresh
Configuration
Show defaults
Show backup
Start
Stop
Fig. 5.1: Info Refresh
Show values of individual parameters as they are stored in backup configuration (in the buffer). To use any of these values, you must use the "Apply" button.
Clicking the button displays the values of individual parameters held in the backup file (Backup/Settings/Open file upload). To use any of these values, you must use the "Apply" button. For loading the backup configuration see menu Tools/Mainten- ance/Backup.
Activating automatic refresh fields marked by icon using the Start button with the frequency circa 1 sec.
Use the "Stop" button to stop automatic refresh of displayed information with 1sec period. Date and time values are refreshed anyway.
Help
The microwave link configuration system is equipped with built in Help - see Help section. The Help is accessible in two forms:
• Configuration parameter context help. The help text is displayed in the pop up window after clicking the parameter name.
• The whole user interface help. The help text is displayed within the configuration screen after clicking the Help menu.
Secure login
You can login into the configuration interface using either the insecure http protocol (default login screen), or the secure https protocol. You should select the connection method on the login screen. If the https protocol is used, it is not possible to tap the network communication and acquire the station’s login information.
77© RACOM s.r.o. – RAy3 Microwave Link
Configuration
Fig. 5.2: Login
Rollback function
If you interrupt the connection on an operating link by entering inappropriate radio link parameters, the original parameters will be restored after 1 minute. The connection is automatically restored.

5.2. Status bar

Fig. 5.3: Status bar 1
The Status bar is located on the upper part of the screen below the title bar. It consists of 3 fields:
Local unit status (unit assigned to the IP address entered in the browser or CLI)
• Local to Peer Link status.
Peer unit status.
Local and Peer field displays:
• Station name according to configuration.
• Actual time valid for respective unit.
• Warning or Alarm icon in case of warning or alarm.
Link field display:
• Status of the link between both sides of the microwave link.
• Warning icon when the link is not capable of user data transfer.
The Link status can be one of the following values:
Unit start up. The initialization is not yet finished.UNKNOWN Unit initialization according to valid configuration.SETUP Unit in operation status. Link to peer unit is not established.SINGLE Connection to peer unit in progress.CONNECTING Authorization of the peer unit in progress.AUTHORIZING
RAy3 Microwave Link – © RACOM s.r.o.78
Link is connected. Peer unit is authorized.OK Spectrum analyzer mode active. User data are not transferred.ANALYZER
All link states except for the state of OK are highlighted with a triangle.:
Fig. 5.4: Status bar 2
Example of a complete page - status bar, menu and control buttons:
Configuration
Fig. 5.5: Page example
79© RACOM s.r.o. – RAy3 Microwave Link
Configuration

5.3. Status

Fig. 5.6: Menu Status
RAy3 Microwave Link – © RACOM s.r.o.80
Configuration
The "Status" menu provides basic information about local and remote station. Informations is valid the moment the page is open, or the Refresh button is hit. The Status/Brief tab shows only the most important values whereas the Status/Detailed tab provides further details. Below is a list of all values according to the tab Status/Detailed . The icon marks fields which are automatically updated with 30 sec period (or 1 sec when the "Start" button is active).

5.3.1. Status - General

LED indicators
Station name
Date, Time
Power supply
Unit status indication
A - AIR
E - ETH
Unit product code - is the same as the Ordering code.Product code Unit serial number.Serial no. Station name can be modified to reflect the unit location in the network to-
pology. Station location can be used to reflect the network topology hierarchy.Station location Software defined radio version.Radio approval version Unit’s firmware version.Firmware version The internal real-time clock. The clock is set manually or it is synchronized
with NTP server and set for both units. Temperature inside the unit (on the modem board).Inside temperature [°C] Unit’s power supply voltage level.Voltage [V] The power supply input the unit is powered from.
PoE - unit is powered via Ethernet cable plugged into port "ETH1+POE". AUX - unit is powered via DC cable plugged into port "P".
Green Red
Green Orange
- Radio link OK
- Radio link interrupted
- System OKGreenS - SYS
- ETH1 port - Link 10/100/1000
- ETH2 port - Link 1000

5.3.2. Status - Radio

Polarization
Bandwidth [MHz]
TX and RX channel [GHz]
Radio unit type: L (Lower) or U (Upper) part of the frequency band.Radio type Horizontal or vertical polarization based on the physical installation. Indic-
ates the polarization of the received signal. Local and Peer are indicated separately. The proper position of the cable is sideways down. Notice for RAy2-17 and RAy2-24 links: One side of the link must be installed in vertical polarization and the other in horizontal polarization.
Displays the currently used frequency table in format <name:version>.Frequency table Current transfer capacity of radio channel for user data.Net bitrate [Mbps] The maximum RF channel capacity according to installed feature key.Max. net bitrate [Mbps] One of the standard channel widths can be selected. This parameter must
be set identically in local and remote. Used channels. Both number of the channel and frequency in GHz are lis-
ted.
81© RACOM s.r.o. – RAy3 Microwave Link
Configuration
TX modulation
TX power [dBm]
RSS [dBm]
SNR [dB]
Modulation type currently used for transmitting. When adaptive modulation is enabled, the ACM letters are displayed as well as information about maximum permitted modulation: "current modulation ACM / maximum modulation"
Current output power on the RF channel in dBm. If ATPC is enabled, the ATPC letters are displayed as well as information about maximum permitted power: "current power ATPC / maximum power"
Received signal strength. If ATPC is enabled, the ATPC letters are displayed as well as information about threshold value for activation of power control loop: "current RSS ATPC / threshold RSS"
Signal to Noise Ratio. If ATPC is enabled, the ATPC letters are displayed as well as information about threshold value for activation of power control loop: "current SNR ATPC / threshold SNR"
Bit Error Rate is registered at the receiving end; instantaneous value.BER [-] Time elapsed since the current link connection has been established.Link uptime

5.3.3. Status - Switch interface

Egress rate limit Air
Status of the Egress rate limiter on the Air interface. The traffic can be limited according to bits per second or frames per second.
Message format for bits per second: "xx.xx Mbps Ly auto" where:
auto
Message format for frames per second: "xx.xx fps" where:
Link mode Eth1, 2
Status of ethernet interface. Current bit rate (10 = 10BASE-T, 100 = 100BASE-TX and 1000 = 1000BASE-T) and state of duplex (FD = full du­plex, HD = half duplex).

5.3.4. Status - Service access

HW address of the Ethernet module.MAC address
IPv4 address
Services
IP address in the standard dotted decimal notation, including the bit width of netmask after the forward slash.
Service access via VLAN management only.Management VLAN Services enabled for unit management and monitoring (Web, Telnet, SSH,
SNMP, NTP).
Egress speed limit.xx.xx Mbps L1/L2/L3 which Ethernet layer is used for speed calculation.Ly gives information about active Speed guard function.
Egress frames per second limit.xx.xx fps

5.3.5. Status - Radio link statistics

Information on statistical data:
Time of log clearing.Statistics Cleared Period of log refresh.Statistics Period
Radio link statistics:
RAy3 Microwave Link – © RACOM s.r.o.82
Configuration
Overall time the link has been connected.Overall Link Uptime Overall time the link has been disconnected.Overall Link Downtime The ratio of "Uptime" and "Downtime".Reliability [%] Current time the link has been connected.Current Link Uptime The longest downtime period recorded.The Longest Drop Length of the last link interruption.The Last Drop Number of link interruptions.Number of Drops
83© RACOM s.r.o. – RAy3 Microwave Link
Configuration

5.4. Link settings

5.4.1. General

Setup of general parameters of the link.
Fig. 5.7: Menu Link settings / General
Unit type indicator.Unit code Unit serial number.Serial no.
IPv4 address
Station name
Date, Time
Time source
IP address in the standard dotted decimal notation, including the bit width of netmask after the forward slash.
Station name can be modified to reflect the unit location in the network topology.
Station location can be used to reflect the network topology hierarchy.Station location The internal real-time clock. The clock is set manually or it is synchronized
with NTP server and set for both units. Time synchronization source setup. Manual setup or NTP protocol use.
For easier diagnostics of link operation, it is recommended to use the NTP time synchronization.
RAy3 Microwave Link – © RACOM s.r.o.84
Configuration
Adjust time
Manual time setup. Use the dialog box to manually set the current date and time. You can copy time from browser (local PC).
IP address of the time synchronization server.NTP source IP Time synchronization interval.NTP period Time zoneTime zone Enable daylight saving timeDaylight saving
Note
When the time zone and/or daylight saving time is changed, the original values set in the RAy unit are kept. The actual change takes place after OS restart in order to prevent unex­pected states related with local time change.

5.4.2. Radio

Setup of general parameters of the radio link.
Fig. 5.8: Menu Link settings / Radio
85© RACOM s.r.o. – RAy3 Microwave Link
Configuration
Radio unit type: L(ower) or U(pper) part of the frequency band.Radio type
Polarization
Bandwidth [MHz]
Frequency input
TX channel [GHz]
RX channel [GHz]
Horizontal or vertical polarization based on the physical installation. Indic­ates the polarization of the received signal. Local and Peer are indicated separately. The proper position of the cable is sideways down. Notice for RAy2-17 and RAy2-24 links: One side of the link must be installed in vertical polarization and the other in horizontal polarization.
One of the standard channel widths can be selected. This parameter must be set identically in local and remote.
Enable manual input (if supported). TX and RX frequencies [GHz] are manually entered. It is possible to disconnect the TX-RX lock and select TX and RX channels individually. Corresponding channels at peer unit are set automatically.
TX and RX channels are selected from a list of channels. The basic con­figuration has the TX and RX options interconnected. In this case the basic duplex spacing between channels is preserved and by selecting one channel, the other three are defined as well. For units operating in free bands, it is possible to disconnect the TX-RX lock and select TX and RX channels individually. Corresponding channels at peer unit are set auto­matically. NOTE: Non-standard duplex setting leads to non-effective use of the spectrum.
Information about duplex spacing of TX and RX channel.Duplex spacing [MHz]
ACM
TX modulation
ATPC
ATPC RSS threshold [dBm]
TX power [dBm]
Antenna gain [dBi]
EIRP ?= limit [dBm]
Enable automatic control of modulation. Modulation level for TX channel. You can select in range from QPSK (high
sensitivity for difficult conditions) to 256QAM (high speed under appropriate conditions). With ACM enabled the modulation will automatically operate from QPSK to the selected modulation.
Enable automatic control of RF power. Power is regulated towards lower level while maintaining signal level high enough not to affect current degree of modulation.
The ATPC algorithm controls the output power according to RSS of the peer unit. The lowest allowed RSS (the threshold) is approx. 10 dBm above declared sensitivity for BER 10-6. If necessary, it is possible to use this parameter to move the threshold slightly up or down.
RF output power. With ATPC enabled this parameter defines maximum RF power level.
Gain of used antenna. It is used to calculate approximate EIRP. Valid only for RAy2-17 and RAy2-24 links.
Approximate calculation of EIRP. Number on the right shows the allowed EIRP limit. Sign between numbers gives information on compliance / noncompliance with allowed EIRP limits. If the EIRP limit field background is RED, the value shown may be used but will exceed the EIRP limit. This field value will only be shown for certain RAy2-17 and RAy2-24 links and based on the Frequency tables used.
The principle behind ATPC is to maintain the lowest transmitting power without affecting the throughput of the link. The output is primarily controlled by RSS on the opposite side. ATPC is also used to maintain SNR thus protecting the selected modulation level. The ATPC Control loop is evaluated once per second.
RAy3 Microwave Link – © RACOM s.r.o.86
Configuration
The principle behind ACM is to maintain the connection between the two units even when degraded propagation conditions are experienced which make it impossible to maintain the selected modulation level. ACM regulates modulation across all ranges from QPSK to TX modulation according to the limits in table ACM switching according to SNR state. ACM control loop is evaluated with each frame, i.e. roughly after tens of microseconds.
In normal operating conditions, ATPC is applied first (even if it is the slower control loop). When deteri­oration in propagation conditions gradually increases the attenuation on the route, it is compensated by increasing RF power. ACM control will only be applied in conditions when ATPC reaches its ceiling.
87© RACOM s.r.o. – RAy3 Microwave Link
Configuration

5.4.3. Service access

Services
Access routes for link configuration.
Fig. 5.9: Menu Link settings / Service access / Services
Service channel
There are two modes of accessing the internal management system of the microwave link: standard and direct
standard:
Both units are configured with the separate IP addresses, Netmasks, Gateways and Management VLANs. IP addresses of both units does not have to belong in to the same sub-net. The "Internal VLAN" is required to encapsulate the internal service traffic between both units of the microwave link. There are additional internal service addresses used for this internal service traffic (see "IPv4 address - Local" section for further details).
direct:
Both units are configured with the separate IP addresses but with the same Netmask, Gateway and the Management VLAN. IP addresses of both units must belong in to the same sub-net. There is no need for "Internal VLAN" to handle the internal
RAy3 Microwave Link – © RACOM s.r.o.88
Configuration
service traffic between both units of the microwave link. No additional internal service addresses exist.
NOTE: It is strongly recommended to use "Management VLAN" to encapsulate and prioritize the management traffic when the direct mode is selected. If the "Management VLAN" is not used (while in direct mode), the internal service traffic is NOT prioritized.
IPv4 address
- Local
Unknown IP address
IPv4 address
- Peer
Service IP address, by default 192.168.169.169 for L unit and 192.168.169.170 for U unit. Four addresses 169.254.173.236/30 are used for internal communication. Must not be used as service IP address. Those four addresses are not used while "Service channel" is set to "direct" mode.
If you forget the Service IP address, it can be found by reading data broadcast through LLDP protocol. Data is transmitted every 60 seconds and contains the following inform­ation:
IP addressManagement address Serial numberSystem Description Type (e.g. RAY2-17-L)Chassis Subtype
IEEE 802.1 - Port and Protocol VLAN ID
Port and Protocol VLAN Identifier: (e.g. 300 (0x012C)) but only if Management VLAN is enabled
The message can be recorded and converted into a readable form using an LLDP client. A suitable tool for this purpose is Wireshark IP traffic analyzing tool, with free licenses available for both Windows and Linux. To locate the message easily, use the Capture filter "ether proto 0x88cc" in Wireshark.
Management address of the Peer station. This address has to be set up when the "Service channel" is set to "direct" mode.
Management VLAN
VID
Internal VLAN
Mask for service access, 24 by default.Netmask Default gateway for service access; empty by default.Gateway Enables access via VLAN management. Blocks access for https, ssh and telnet con-
figuration via untagged packets (without VLAN) making only VLAN access possible. VLAN management is off by default. WARNING: By enabling VLAN management, ALL accesses are blocked for configuration using normal (untagged) LAN! During tests, you may enable VLAN management on one unit only (if the "Service channel = standard"). Then it is possible to access the link via LAN and VLAN either directly or via radio link.
VLAN management id, by default 1. This field must have a value entered even when VLAN management is not active.
Protocol 802.1q or 802.1adProtocol Valid only for "Service channel = standard": The RAy uses one VLAN id for internal
service communication between both units. There are two situations when it might be necessary to change the Internal VLAN id:
- Conflict within user data flow when the same VLAN id is already present within a data flow.
- Conflict with the internal management address of another RAy unit located at the same site and connected in the same LAN segment. NOTE: The Ethernet frames within this service channel are marked with IEEE 802.1p priority class "7". Default parameters for QoS and Egress queue control are pre-set to prioritize this service communication channel.
89© RACOM s.r.o. – RAy3 Microwave Link
Configuration
Web server
CLI (telnet)
CLI (SSH)
SNMP com­munity string
SNMP trap IP
LED indicators
LLDP (Service IP info)
Allows access via web server (for HTTP and HTTPS protocol). WARNING: after disabling access via web server, you will not be able to access the unit using a web browser!
Enables access via telnet protocol. Provides access to CLI (Command Line Interface) for simple telnet clients. Disabled by default.
Enables access via SSH protocol. Provides secure access to CLI. If preventing unau­thorized access to the unit is the number one priority, leave only this server on.
Enabling SNMP server. Off by default.SNMP SNMP community string. Can contain both lower and uppercase letters, numbers,
four characters . : _ - and can be up to 256 characters long. Address for sending SNMP traps. It is possible to record up to 3 addresses separated
by commas. Enable LED status indicators on the body of the unit. You can turn off all LEDs with
this option.
Data transmitted through the LLDP protocol can be accessed in two ways:
Transmissions every 60 secondsOn Transmitted once only when unit is rebootedSingle
See "IPv4 address - Local ... Unknown IP address" for description of the data trans­mitted through the LLDP protocol.
RAy3 Microwave Link – © RACOM s.r.o.90
Configuration
USB accessories
The USB connector is used for management access (not for user data) to the local unit using Ethernet or WiFi adapter. Only RACOM recommended adapters are supported.
Default WiFi IP address of the unit is 172.17.17.17 with DHCP enabled by default allocating IP address automatically to connected device.
Fig. 5.10: Menu Link settings / Service access / USB accessories
USB info
DHCP start DHCP end
Status information about device connected via the USB: n/a - info not available (peer has older fw), or No device - no device plugged in the USB port, or Vendor ID:Product ID Manufacturer Product WiFi/Eth: up/down ... only for network device MAC ... only for network device
Unit service management address when connecting via USB port.IPv4 address Network mask when connecting via USB port.Netmask DHCP range for dynamic address allocation of the management client
connected via USB port. USB to Ethernet adapter operation Enable/Disable.Ethernet adapter enable
91© RACOM s.r.o. – RAy3 Microwave Link
Configuration
enable
DHCP server for the client(s) connected via USB to Ethernet adapter.Ethernet adapter DHCP
WiFi adapter enable on Air link loss
WiFi adapter Force enable
enable
WiFi encryption
WiFi passphrase
USB to WiFi adapter is only activated during Air-Link loss – means WiFi starts to work and transmit SSID. WiFi is activated 60 seconds after Air­Link loss and deactivated 600 seconds after the Air-Link is restored. The WiFi passphrase should be set by admin before using this option (if not WiFi management alarm is activated).
USB to WiFi adapter is forced to be permanently active (and to transmit SSID) and WiFi management alarm is activated. WiFi passphrase should be set by admin before using this option. This parameter has a higher priority than "WiFi adapter enable on Air link loss", so if it is set ON then WiFi activity does not depend on Air-Link status.
DHCP server for the client(s) connected via the USB to WiFi adapter.WiFi adapter DHCP
Service WiFi SSID can be max 32 characters long.WiFi SSID Service WiFi encryption is WPA2 and can not be changed. Factory default
is "none" due to missing passphrase. WPA2 is applied automatically once any passphrase is entered.
Service WiFi passphrase has to be 8-64 characters long. The WiFi pass­phrase should be set by admin before any use of WiFi. Until passphrase is set, WiFi management alarm is activated.
Service WiFi mode can be IEEE 802.11n or IEEE 802.11gWiFi mode
WiFi channel
Note
When upgrading from FW older than 2.1.28.0 it is necessary to click "Show Defaults" followed by "Apply" to enable smooth WiFi functionality.
WiFi channel can be set 1-11 depending on WiFi mode setting (see para­meter above): IEEE 802.11n - channels 1-7 IEEE 802.11g - channels 1-11 The WiFi adapter does not search for conflicts in the air. If problems occur, changing the channel is the easiest way to resolve the issue.
RAy3 Microwave Link – © RACOM s.r.o.92
Users
List and setup of users. Example menu of the cli_super level user.
Fig. 5.11: Menu Link settings / Service access / Users
Configuration
Within the default Factory Settings one user is defined in the system. This user has username admin and password admin and is assigned the highest level of permissions cli_super. This user then assigns other users to the system along with their level of permissions.
Service access has three levels of permissions. Numbers of users that can be defined in the system:
No of usersPermissions
10cli_guest 10cli_admin
2cli_super
cli_supercli_admincli_guestPermissions defined in the system
YesNoNoCreate new user YesYesYesChange own password YesNoNoDelete user * YesNoNoCopy (Mirror) permissions local to peer YesYesNoConfigure and modify link settings
* The system prevents the user from deleting both cli_super accounts.
The logged on user is shown in the top right of the screen. There can be different users on either end of the link.
Important
It is strongly recommended that the default password admin is changed. Similarly all other users should change their password. Using the CLI, it is appropriate to supplement the SSH key.
List of users on Local and Peer stations.Local, Peer
93© RACOM s.r.o. – RAy3 Microwave Link
Configuration
This name is entered at Login to log into the link management.Username
Group
User group to which the user belongs.
Read Onlycli_guest Configure and modify link settingscli_admin Configure and modify user accounts and link settingscli_super
Information about whether user has a passwordPassword Information about whether user has at least one ssh key defined.SSH key
Note
More users concurrently
If two or more users work concurrently on the unit any change of configuration settings should be applied by all users. This applies to the menu Link settings which works with both, Local and Peer parameters. Notification to other users:
If one user sends the Apply command, other users will receive a message: "Configuration changed, please go to Link settings and click Refresh". Other users can only use the Apply command after refreshing Link Settings.
RAy3 Microwave Link – © RACOM s.r.o.94
Configuration
Edit use
Clicking "Edit" next to a username opens a screen with configuration of the given account.
Fig. 5.12: Menu Link settings / Service access / Users / edit
User nameUsername The group to which this user will belong.Group
Password
SSH key
Save the menu content by clicking on the button Apply.
Backup user
Password can be set or deleted.
Delete – User will not have a password. The user will only be able to log in with an ssh key. In order to delete the password, you must first upload the ssh key.
Set – Password settings. New password.New password Repeat password.Confirm password Working with ssh key.
Delete – Clear all ssh keys from user account.
Set/replace – Add a new key. If there already was any key(s), it will
be overwritten.
Add – Add a new key. You can enter multiple ssh keys in this way. Insert key file.Key file
The user settings can be backed up, see Tools / Maintenance / Backup.
95© RACOM s.r.o. – RAy3 Microwave Link
Configuration
Delete user
Users at level cli_super have a Delete button next to each user. Delete a user using this button without being asked to confirm deletion. Users at level cli_super cannot both be deleted.
Add user
The button is located on the bottom bar. For level cli_super users, the "Add user" button is active. Use it to create a new user within
any group.
Name of new user.Username The group to which this user is assigned.Group Password for this user.New password Repeat password.Confirm password
SSH key
Create a new user account by clicking on the button Apply.
Mirror users
The button is located on the bottom bar. For level cli_super users, the "Mirror users" button is active. This function will copy all user
accounts from Local unit to Peer unit. All existing user accounts on the Peer unit are deleted.
If you want the user to have access using ssh protocol and identity verification using ssh key, enter the ssh key here.
RAy3 Microwave Link – © RACOM s.r.o.96

5.4.4. Alarms

Alarms Config
Configuration
Fig. 5.13: Menu Link settings / Alarms / Config
The diagnostics system of the link monitors the operation of the unit.
It generates various event outputs - system warnings and alarms. The event is always written to the system log and indicated in the status bar and Alarms/Status screen. Some events have adjustable thresholds. Events with no adjustable thresholds may or may not be Enabled. If they are not Enabled, the system event is not activated even if the system status is changed.
If the event goes above or below the set parameter limits or a link goes down or up, you can choose to send an SNMP trap. All SNMP traps are OFF in defaults.
descriptiondefaultalarm
Temperature inside the unit (on the modem board). Active if temperature
>80Inside temper. [°C]
exceeds the threshold. Lower threshold of supply voltage. Active if voltage drops below min
<40Voltage min [V]
voltage threshold. The same SNMP trap (same OID) applies for both Voltage min and max.
Upper threshold of supply voltage. Active if voltage rises above max
>60Voltage max [V]
voltage threshold. The same SNMP trap (same OID) applies for both Voltage min and max.
Received Signal Strength. Active if RSS drops below RSS threshold.<−80RSS [dBm] Signal to Noise Ratio. Active if SNR drops below SNR threshold.<10SNR [dB]
97© RACOM s.r.o. – RAy3 Microwave Link
Configuration
BER [-]
>10e
onAir link down
−6
Bit Error Rate is registered at the receiving end - instantaneous value. Active if BER exceeds the threshold set in this parameter.
The system warning is generated when the current transfer capacity of
0Net bitrate [Mbps]
radio channel is lower than the threshold set in this parameter. Interruption of radio link. Active if radio link is interrupted and units can
not communicate by Air.
Eth1 link down
Alarms Status
Corresponding user Eth link (Eth1/Eth2) on station interrupted. NOTE: The "EthX link" system alarm can only be activated if this alarm is Enabled. When the alarm is not Enabled, the "EthX link" alarm on Status screen is always "Ok" regardless of the current status of the Ethernet link.
Loss of transmit power (not applicable for RAy2-17 neither RAy2-24).RF power fail Warning is generated when WiFi passphrase is not set or WiFi adapter
onWiFi Management
(and Host Access Point) is permanently enabled (WiFi Force Enable is ON). Parameter can not be changed in web interface (only through CLI).
Fig. 5.14: Menu Link settings / Alarms / Status
Overview of alarms
All system alarms are listed on this screen. Inactive alarms are colored white with an "OK" text label. Active alarms are colored according to the severity of the alarm with a text message describing the measured value status.
For a detailed description of each Alarm click on the Alarm name.
RAy3 Microwave Link – © RACOM s.r.o.98
Fig. 5.15: Alarm severity
Alarms Acknowledge
Configuration
Fig. 5.16: Menu Link settings / Alarms / Acknowledge
Alarm acknowledgement allows the operator to confirm the system is set in alarm state. Only an active alarm can be acknowledged. Multiple selections of active alarms (to acknowledge groups of alarms) can be performed using Shift or Ctrl keys.
Name
State
Ack
Comment
Alarm identification - The following alarms can appear: Inside temperature, Voltage min, Voltage max, RSS, SNR, BER, Net bitrate, Air link, Eth1 link, Eth2 link, RF power, WiFi management
There are three possible alarm states: OK ... No alarm (alarm is inactive) or alarm disabled. Ack ... Alarm is active and acknowledged. Alarm ... Alarm is active and is not acknowledged.
Time stamp when the alarm occurred.From Time stamp when the alarm expired (returned to normal conditions).To Time stamp when the alarm was acknowledged.
Time stamp format: yyyy-MM-dd hh:mm:ss Name (login) of the user who acknowledged the alarm.User The comment field can be used to add user defined comments when an 'alarm acknow-
ledge' is performed. Use this comment field to describe important details of the alarm status. The comment can be up to 50 characters long. Special characters are not allowed. The alarm can be acknowledged multiple times with different comments. Every acknow­ledgement is written to the internal memory and is visible in the alarm log.
99© RACOM s.r.o. – RAy3 Microwave Link
Configuration

5.5. Switch settings

5.5.1. Status

Port status
The unit internal Ethernet switch port status
Fig. 5.17: Menu Switch settings / Port status
Port name
Link status
Speed / duplex
SFP info
Identification of the internal switch port. The switch ports are connected to an external port or to an internal device (radio modem, management CPU).
Eth1 Eth2 CPU Air
Ethernet link status can be
The type of the physical layer is indicated after the slash
Ethernet link Speed and duplex.
Information about the (optionally) inserted SFP module. The three different types of SFP modules can be used:
The external port (with RJ45 interface) labeled "ETH1+POE". Port 2. The external port (with SFP interface) labeled "ETH2". Port 4. The internal port to management CPU. It is physical port number 5. The internal port to radio modem, i.e. link to the peer unit. Port 6.
no link signal detecteddown / type link signal detectedup / type
metallic Ethernet interfacecopper SFP module can be either optic or metallicSFP
10/100/1000 Mbps.Speed: full/halfDuplex:
dual mode with LC connectorFibre single mode with LC connectorFibre with RJ45 connectorCopper
RAy3 Microwave Link – © RACOM s.r.o.100
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