Comtech EF Data MM200 User Manual

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MM200

High Speed

Microwave Modem

Installation and Operation Manual

TM086 - Rev. 4.1

Comtech EF Data • 2114 W 7th St. • Tempe, AZ 85281 • (480) 333-2200 • Fax: (480) 333-2540 • www.comtechefdata.com

MM200 High-Speed Microwave Modem Warranty Policy

iii

Warranty Policy

Comtech EF Data products are warranted against defects in material and workmanship for a period of two years from the date of shipment. During the warranty period, Comtech EF Data will, at its option, repair or replace products that prove to be defective.

For equipment under warranty, the owner is responsible for freight to Comtech EF Data and all related customs, taxes, tariffs, insurance, etc. Comtech EF Data is responsible for the freight charges only for return of the equipment from the factory to the owner. Comtech EF Data will return the equipment by the same method (i.e., Air, Express, Surface) as the equipment was sent to Comtech EF Data.

All equipment returned for warranty repair must have a valid RMA number issued prior to return and be marked clearly on the return packaging. Comtech EF Data strongly recommends all equipment be returned in its original packaging.

Comtech EF Data Corporation’s obligations under this warranty are limited to repair or replacement of failed parts, and the return shipment to the buyer of the repaired or replaced parts.

Limitations of Warranty

The warranty does not apply to any part of a product that has been installed, altered, repaired, or misused in any way that, in the opinion of Comtech EF Data Corporation, would affect the reliability or detracts from the performance of any part of the product, or is damaged as the result of use in a way or with equipment that had not been previously approved by Comtech EF Data Corporation.

The warranty does not apply to any product or parts thereof where the serial number or the serial number of any of its parts has been altered, defaced, or removed.

The warranty does not cover damage or loss incurred in transportation of the product. The warranty does not cover replacement or repair necessitated by loss or damage from any cause beyond

the control of Comtech EF Data Corporation. The warranty does not cover any labor involved in the removal and or reinstallation of warranted equipment

or parts on site, or any labor required to diagnose the necessity for repair or replacement. The warranty excludes any responsibility by Comtech EF Data Corporation for incidental or consequential

damages arising from the use of the equipment or products, or for any inability to use them either separate from or in combination with any other equipment or products.

A fixed charge established for each product will be imposed for all equipment returned for warranty repair where Comtech EF Data Corporation cannot identify the cause of the reported failure.

Exclusive Remedies

Comtech EF Data Corporation’s warranty, as stated is in lieu of all other warranties, expressed, implied, or statutory, including those of merchantability and fitness for a particular purpose. The buyer shall pass on to any purchaser, lessee, or other user of Comtech EF Data Corporation’s products, the aforementioned warranty, and shall indemnify and hold harmless Comtech EF Data Corporation from any claims or liability of such purchaser, lessee, or user based upon allegations that the buyer, its agents, or employees have made additional warranties or representations as to product preference or use.

The remedies provided herein are the buyer’s sole and exclusive remedies. Comtech EF Data shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

Warranty Repair Return Procedure

TM086 - Rev. 4.1

Warranty Policy MM200 High-Speed Microwave Modem

Before a warranty repair can be accomplished, a Repair Authorization must be received. It is at this time that Comtech EF Data will authorize the product or part to be returned to the Comtech EF Data facility or if field repair will be accomplished. The Repair Authorization may be requested in writing or by calling:

Comtech EF Data Corporation

2114 W 7th Street. Tempe, Arizona 85281 (USA) ATTN: Customer Support Phone: (480) 333-2200 Fax: (480) 333-2540

Any product returned to Comtech EF Data for examination must be sent prepaid via the means of transportation indicated as acceptable to Comtech EF Data. Return Authorization Number must be clearly marked on the shipping label. Returned products or parts should be carefully packaged in the original container, if possible, and unless otherwise indicated, shipped to the above address.

Non-Warranty Repair

When a product is returned for any reason, Customer and its shipping agency shall be responsible for all damage resulting from improper packing and handling, and for loss in transit, not withstanding any defect or nonconformity in the product. By returning a product, the owner grants Comtech EF Data permission to open and disassemble the product as required for evaluation. In all cases, Comtech EF Data has sole responsibility for determining the cause and nature of failure, and Comtech EF Data’s determination with regard thereto shall be final.

iv TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Preface

Preface

This manual provides installation and operation information for the Radyne RCS20 M:N Redundancy Switch. This is a technical document intended for use by engineers, technicians, and operators responsible for the operation and maintenance of the RCS20.

Conventions

Whenever the information within this manual instructs the operator to press a pushbutton switch or keypad key on the Front Panel, the pushbutton or key label will be shown in "less than" (<) and "greater than" (>) brackets. For example, the Reset Alarms Pushbutton will be shown as <RESET ALARMS>, while a command that calls for the entry of a ‘7’ followed by ‘ ENTER’ Key will be represented as <7,ENTER>.

Cautions and Warnings

A caution icon indicates a hazardous situation that if not avoided, may result in minor or moderate injury. Caution may also be used to indicate other unsafe practices or risks of property damage.

A warning icon indicates a potentially hazardous situation that if not avoided, could result in death or serious injury.

A note icon identifies information for the proper operation of your equipment, including helpful hints, shortcuts, or important reminders.

Trademarks

TM086 - Rev. 4.1 v

Preface MM200 High-Speed Microwave Modem

Level

3.3

12-11-01

Revised Electrical Interfaces Section.

Product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged.

2008, Comtech EF Data This manual is proprietary to Comtech EF Data and is intended for the exclusive use of Comtech EF Data’s customers. No part of this document may in whole or in part, be copied, reproduced, distributed, translated or reduced to any electronic or magnetic storage medium without the express written consent of a duly authorized officer of Comtech EF Data

Disclaimer

This manual has been thoroughly reviewed for accuracy. All statements, technical information, and recommendations contained herein and in any guides or related documents are believed reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and they are not intended to be, nor should they be understood to be, representations or warranties concerning the products described. Comtech EF Data assumes no responsibility for use of any circuitry other than the circuitry employed in Comtech EF Data systems and equipment. Furthermore, since Comtech EF Data is constantly improving its products, reserves the right to make changes in the specifications of products, or in this manual at any time without notice and without obligation to notify any person of such changes.

Record of Revisions

Revision

Date Reason for Change

1.0 6-16-00 New Release.

2.0 4-19-01 Revised and reformatted manual.

3.0 5-4-01 Revised User Interfaces Section.

3.1 6-4-01 Revised Electrical Interfaces Section.

3.2 10-9-01 Revised the Detailed Command Descriptions Section.

3.4 1-8-02 Added MIB.

4.0 3-27-03 Revised and Reformatted Technical Manual.

4.1 12-18-06 Revised and Reformatted Technical Manual

Comments or Suggestions Concerning this Ma nual

Comments or suggestions regarding the content and design of this manual are appreciated. To submit comments, please contact the Comtech EF Data Corporation Customer Service Department.

TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Table of Contents

ToC

Table of Contents

Warranty Policy ............................................................................................................ iii

Preface ........................................................................................................................... v

Conventions ___________________________________________________________ v Cautions and Warning s __________________________________________________ v Trademarks ___________________________________________________________ v Copyright ____________________________________________________________ vi Record of Revisions ____________________________________________________ vi Comments or Suggestions Concerning this Manual ___________________________ vi

Section 1 - Introduction ............................................................................................. 1-1

1.0 Description ______________________________________________________ 1-1

Section 2 - Installation ............................................................................................... 2-1

2.1 Unpacking _______________________________________________________ 2-1

2.2 Removal and Assembly ____________________________________________ 2-2

2.3 Mounting Considerations ___________________________________________ 2-2

2.4 Modem Checkout _________________________________________________ 2-2

2.4.1 Initial Power-Up _________________________________________________ 2-3

Section 3 - Theory of Operation ................................................................................ 3-1

3.0 Theory of Operation _______________________________________________ 3-1

3.1 Signal Flow ______________________________________________________ 3-1

3.1.1 Interfaces ______________________________________________________ 3-1

3.1.2 Data Mux ______________________________________________________ 3-2

3.1.3 RF Modulators __________________________________________________ 3-3

3.1.4 RF Demodulators ________________________________________________ 3-3

3.1.5 Diversity (Option) ________________________________________________ 3-3

3.2 Start-Up Procedures _______________________________________________ 3-3

3.2.1 Initial Start-up Procedure __________________________________________ 3-3

TM086 - Rev. 4.1 vii

Table of Contents MM200 High-Speed Microwave Modem

viii

3.2.2 Sample Setups __________________________________________________ 3-4

3.2.2.1 Transmitting G.703 T3 From Interface Slot 3 (ot her int er faces disabled) ___ 3-4

3.2.2.2 Transmitting STM-1 From Interface Slot 1 (other interfaces disabled) _____ 3-4

3.2.3 Hardware Reset _________________________________________________ 3-4

3.3 Calculating 3 dB Bandwidth of MM200 Modulated Carrier __________________ 3-5

3.4 Input Level ______________________________________________________ 3-5

Section 4 - User Interfaces ....................................................................................... 4-1

4.0 User Interfaces ___________________________________________________ 4-1

4.1 Front Panel User Interface __________________________________________ 4-1

4.1.1 Front Panel LCD Display __________________________________________ 4-2

4.1.2 Cursor Control Arrows ____________________________________________ 4-2

4.1.3 Front Panel Keypad ______________________________________________ 4-2

4.1.4 Front Panel LED Indicators ________________________________________ 4-3

4.1.5 Parameter Setup ________________________________________________ 4-3

4.2 Front Panel Control Screen Menus ____________________________________ 4-4

4.3 Level 2 Menu Screens _____________________________________________ 4-4

4.3.1 Main Menu Screens ______________________________________________ 4-4

4.3.2 MODULATOR (menu) ____________________________________________ 4-5

4.3.3 DEMODULATOR (menu) __________________________________________ 4-6

4.3.4 REPEATER (Menu) ______________________________________________ 4-8

4.3.4 APC (Menu) ____________________________________________________ 4-8

4.3.5 TX INTERFACE (Menu) ___________________________________________ 4-9

4.3.6 RX INTERFACE (Menu) _________________________________________ 4-10

4.4 All Level Menu Screens ___________________________________________ 4-12

4.4.1 Main Menu Screens _____________________________________________ 4-12

4.4.2 MODULATOR (menu) ___________________________________________ 4-12

4.4.3 DEMODULATOR (menu) _________________________________________ 4-13

4.4.4 REPEATER (menu) _____________________________________________ 4-17

4.3.4 APC (Menu) ___________________________________________________ 4-17

4.4.5 TX INTERFACE (Menu) __________________________________________ 4-17

4.4.6 RX INTERFACE (Menu) _________________________________________ 4-20

4.4.7 MONITOR (Menu) ______________________________________________ 4-21

4.4.8 ALARMS (Menu) _______________________________________________ 4-24

4.4.8.1 Active Alarms ________________________________________________ 4-24

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MM200 High-Speed Microwave Modem Table of Contents

4.4.8.2 Latched Alarms _______________________________________________ 4-28

4.4.8.3 Clear Alarms _________________________________________________ 4-28

4.4.9 SYSTEM (Menu) _______________________________________________ 4-28

4.4.10 TEST (Menu) _________________________________________________ 4-30

4.5 Remote Port User Interface ________________________________________ 4-30

4.5.1 Protocol Structure ______________________________________________ 4-31

4.5.2 Protocol Wrapper _______________________________________________ 4-31

4.5.3 Frame Description and Bus Handshaking ____________________________ 4-33

4.5.4 Global Response Operational Codes _______________________________ 4-34

4.5.5 Collision Avoidance _____________________________________________ 4-36

4.5.6 Software Compatibility ___________________________________________ 4-37

4.5.7 RLLP Summary ________________________________________________ 4-38

4.6 Simple Network Management Protocol (SNMP) _________________________ 4-38

4.7 The Management Inform at ion Base ( MIB) _____________________________ 4-38

4.8 Directory _____________________________________________________ 4-38

4.9 Mgmt ______________________________________________________ 4-39

4.10 Experimental _________________________________________________ 4-39

4.11 Private _____________________________________________________ 4-39

4.12 Terminal Port User Interface _______________________________________ 4-40

4.13 Modem Configuration ____________________________________________ 4-40

4.14 Connecting the Terminal __________________________________________ 4-40

4.15 SNMP Option __________________________________________________ 4-42

4.16 Network Configuration ___________________________________________ 4-42

4.17 Terminal Screens _______________________________________________ 4-42

4.18 Logging on and Passwords________________________________________ 4-43

4.19 Exiting SNMP Configuration _______________________________________ 4-44

4.20 Logging On ____________________________________________________ 4-44

4.21 Changing the Logon Password _____________________________________ 4-44

4.22 Logging Of f ____________________________________________________ 4-45

4.23 Changing Your Authentication Password _____________________________ 4-45

4.24 Changing Your Privacy Password __________________________________ 4-45

4.25 Modem MM200 High-Speed Microwave Modem Ethernet Address _________ 4-46

4.26 Modem IP Address ______________________________________________ 4-46

4.27 Server Ethernet Address __________________________________________ 4-46

4.28 Server IP Address _______________________________________________ 4-46

TM086 - Rev. 4.1

Table of Contents MM200 High-Speed Microwave Modem

4.29 Server Host Name ______________________________________________ 4-46

4.30 Router IP Address _______________________________________________ 4-47

4.31 IP Address Mask ________________________________________________ 4-47

4.32 Boot Mode (Optional) ____________________________________________ 4-47

4.33 Community ____________________________________________________ 4-47

4.34 Trap Type and Trap Hosts ________________________________________ 4-47

4.35 Trace Mode ____________________________________________________ 4-48

4.36 SNMP V1 & 2 Access View________________________________________ 4-48

4.37 Key Generation Mode ____________________________________________ 4-48

4.38 Context Engine ID _______________________________________________ 4-48

4.41 Connect the Ethernet Cable _______________________________________ 4-49

4.42 Ping Program __________________________________________________ 4-50

4.43 SNMP Test ____________________________________________________ 4-51

Section 5 - Electrical Int erfaces ................................................................................ 5-1

5.0 MM200 Connections _______________________________________________ 5-1

5.1 Power __________________________________________________________ 5-1

5.1.1 AC Power ______________________________________________________ 5-1

5.1.2 DC Power ______________________________________________________ 5-1

5.2 Alarm Port _______________________________________________________ 5-2

5.3 Terminal Port (I/O ) ________________________________________________ 5-3

5.4 Remote Port (I/O) _________________________________________________ 5-3

5.4.1 Remote Port Cabling for a St andard Computer RS-232 COM Port _________ 5-4

5.5 Ethernet Interf ace ( I/O) _____________________________________________ 5-5

5.6 TX RF Port (Output ) _______________________________________________ 5-5

5.7 RX RF Port (Input) ________________________________________________ 5-5

5.8 External Reference (Input) __________________________________________ 5-5

5.9 Interface Slots 1 T hr ough 4 _________________________________________ 5-6

5.10 High-Speed G.703/DS3, E3, STS-1 Rear Panel Interface _________________ 5-6

5.10.1 G.703 OUT Female BNC Connector (J15) ___________________________ 5-6

5.10.2 CLK IN Female BNC Connector (J16) _______________________________ 5-6

5.10.3 G.703 IN Female BNC Connector (J17) _____________________________ 5-6

5.11 Overhead/DS0 Audio Rear Panel Interface ____________________________ 5-7

5.11.1 DS01 15-Pin Female HD ‘D’ Sub Connector (J7) ______________________ 5-8

5.11.2 DS02 15-pin female HD ‘D’ sub connector (J8) ________________________ 5-8

TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Table of Contents

5.11.3 DS03 15-pin female HD ‘D’ sub connector (J9) ________________________ 5-8

5.11.4 DS04 15-pin female HD ‘D’ sub connector (J10) _______________________ 5-8

5.11.5 DS05 15-pin female HD ‘D’ sub connector (J11) _______________________ 5-8

5.11.6 DS06 15-pin female HD ‘D’ sub connector (J12) _______________________ 5-8

5.11.7 DS07 15-pin female HD ‘D’ sub connector (J13) _______________________ 5-9

5.11.8 DS08 15-pin female HD ‘D’ sub connector (J14) _______________________ 5-9

5.12 Optical/OC3 STM-1 Rear Panel Interface _____________________________ 5-9

5.12.1 ELEC OUT Female BNC Connector (J15) ___________________________ 5-9

5.12.2 ELEC IN Female BNC Connector (J16)______________________________ 5-9

5.12.3 OPTICAL IN SC Connector (J17) __________________________________ 5-9

5.12.4 Optical Out SC Connector (J18) ___________________________________ 5-9

5.12.5 REF OUT Female BNC Connector (Optional) (J19) ____________________ 5-9

5.12.6 REF IN Female BNC Connector (Optional) (J20) ______________________ 5-9

5.13 ASI Rear Panel Interface _________________________________________ 5-10

5.13.1 ASI OUT Female BNC Connector (J15) ____________________________ 5-10

5.13.2 ASI IN Female BNC Connector (J16) ______________________________ 5-10

5.14 Wayside G.703/ T1, E1 Rear Panel Interface __________________________ 5-10

5.14.1 IN Female BNC Connector (J15) __________________________________ 5-10

5.14.2 OUT Female BNC Connector (J16) ________________________________ 5-11

5.14.3 BALANCED 15-pin female ‘D’ sub connector ________________________ 5-11

5.14.4 CLK OUT (J17) _______________________________________________ 5-11

5.14.5 CLK IN Female BNC Connector (J18) ______________________________ 5-11

5.15 Parallel RS-422/DVB, M2P ________________________________________ 5-11

5.15.1 PARALLEL TX 25-pin female ‘D’ sub connector ( J15) _________________ 5-12

5.15.2 PARALLEL RX 25-pin female ‘D’ sub connector (J16) _________________ 5-13

5.15.3 CLK IN (J17) _________________________________________________ 5-13

5.15.4 CLK IN Female BNC Connector (J18) ______________________________ 5-13

5.16 Parallel LVDS/DVB, M2P _________________________________________ 5-14

5.16.1 PARALLEL TX 25-pin female ‘D’ sub connector ( J15) _________________ 5-14

5.16.2 PARALLEL RX 25-pin female ‘D’ sub connector (J16) _________________ 5-15

5.16.3 CLK IN (J17) _________________________________________________ 5-15

5.16.4 CLK IN Female BNC Connector (J18) ______________________________ 5-16

5.17 SMPTE/310M Rear Panel Interface _________________________________ 5-16

5.17.1 EXT CLK (J15) ________________________________________________ 5-16

5.17.2 SMPTE IN Female BNC Connector (J16) ___________________________ 5-16

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Table of Contents MM200 High-Speed Microwave Modem

xii

Section 6 - Maintenance and Troubleshooting ........................................................ 6-2

6.0 Periodic Maintenance ______________________________________________ 6-2

6.1 Maintenance Philosophy ____________________________________________ 6-2

6.2 Customer Service _________________________________________________ 6-2

6.3 Troubleshooting __________________________________________________ 6-3

Section 7 - Technical Specifications ........................................................................ 7-1

7.0 Introduction ______________________________________________________ 7-1

7.1 Specifications ____________________________________________________ 7-1

7.2 Options _________________________________________________________ 7-1

7.3 Optional Data Interfaces ____________________________________________ 7-2

7.4 Optional Overhead Interfaces ________________________________________ 7-2

Appendix A - Remote RLLP ...................................................................................... A-1

A.1 MM200 Opcode Command Set ______________________________________ A-1 A.2 Modem Command Set _____________________________________________ A-1 A.3 Detailed Command Descriptions _____________________________________ A-4

Appendix B - SNMP MIB ........................................................................................... B-1

Glossary ..................................................................................................................... G-1

TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Introduction

Introduction

1.0 Description

The Radyne MM200 Microwave Modem is a high-speed, multi data rate Modulator/Demodulator. It is a single rack digital modem for point-to-point or point-to-multipoint communication links and is ideal for microwave link upgrades or retrofits.

The MM200 utilizes a proprietary matrix modulation format that provides maximum bandwidth efficiency and data rates up to 176 Mbps (200 Mbps optional). Increased performance is achieved in multi-path or fading environments over conventional QAM modulation.

The MM200 offers a large variety of interfaces such as T3, E3, STS1, DVB SPI, DVB ASI, OC3/STM-1, T1, E1, E2, 10Base T, and others.

Figure 1-1. MM200 Microwave Modem

TM086 - Rev. 4.1 1-1

Introduction MM200 High-Speed Microwave Modem

1-2 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Installation

Installation

2.0 Installation Requirements

The MM200 is designed to be installed within any standard 19-inch equipment cabinet or rack, and requires 2 rack unit (RU) mounting spaces (3.5 inches) vertically and 19 inches of depth. Including cabling, a minimum of 20 inches of rack depth is required. The rear panel of the MM200 is designed to have power enter from the left and IF cabling enter from the right when viewed from the rear of the unit. Data and control cabling can enter from either side although they are closer to the center. The unit can be placed on a table or suitable surface if required.

There are no user-serviceable parts or configuration settings located inside the MM200 chassis. There is a pot ential shock haz ard internally at the power supply module. DO NOT open the MM200 circumstances.

Before initially applying power to the unit, it is a good idea to disconnect the transmit output from the operating station equipment. This is especially true if the current MM200 configuration settings are unknown, where incorrect setting could disrupt exis ting communications traffic.

The MM200 contains a Lithium Battery. DANGER OF EXPLOSION exists if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries in accordance with manufacturers instructions

chassis under any

2.1 Unpacking

The MM200 Modem was caref ully packaged to avoid dam age and should arrive com plete with the following items for proper installation:

 MM200 Unit  Prime power connection  Installation and Operation Manual

TM086 - Rev. 4.1 2-1

Installation MM200 High-Speed Microwave Modem

2.2 Removal and Assembly

If using a knife or cutting blade to open the carton, exercise caution to ensure that the blade does not extend into the carton, but only cuts the tape holding the carton closed. Carefully unpack the unit and ensure that all of the above items are in the carton. If the Primary AC power available at the installation site requires a different power cord/AC connector, then arrangements to receive the proper device will be necessary before proceeding with the installation.

The MM200 modem is shipped fully assembled and does not require removal of the covers for any purpose in installation. Should the power cable AC connector be of the wrong type for the installation, either the cable or the power connector end should be replaced. The power supply itself is designed for universal application using from 100 to 240 VAC, 50-60 Hz, 1A or 37 – 75 VDC @ 4A.

2.3 Mounting Considerations

When mounted in an equipment rack, adequate ventilation must be provided. The MM200 draws air in from the left hand side and exhausts from the right rear and side (as viewed from the front). Do not install the unit in closed locations where this airflow will be restricted. The exhaust air must be allowed to vent away from the unit and not be allowed to flow back into the air input. The

ambient temperature in the rack should be between 0° and 50° C, and held constant for best equipment operation. The air available to the rack should be clean and relatively dry

Do not mount the MM200 in an unprotected outdoor location where there is direct contact with rain, snow, wind or sun. The MM200 is designed for indoor applications only.

The only tools required for rack mounting the MM200 an appropriate screwdriver. Rack mount brackets are an integral part of the cast front bezel of the unit and are not removable.

Shielded cables with the shield terminated to the conductive backshells are required in order to meet EMC directives. Cables with insulation flammability ratings of 94 VO or better are required in order to meet low voltage directives.

is a set of four rack mounting screws and

2.4 Modem Checkout

The following descriptions assume that the MM200 is installed in a suitable location with prime power and supporting equipment available.

2-2 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Installation

2.4.1 Initial Power-Up

Before initial power up of the MM200, it is a good idea to disconnect the transmit output from the operating ground station equipment. This is especially true if the current modem co nfiguration settings are unknown, where incorrect setting could disrupt existing communications traffic. New units from the factory are normally shipped in a default configuration which includes setting the transmit carrier off.

Turn the unit ‘ON’ by applying power (DC versions), or placing the rear panel switch (above the power entry connector) to the ‘ON’ position (AC versions). Upon initial and subsequent powerups, the MM200 microprocessor will test itself and several of its components before beginning its main monitor/control program. These power-up diagnostics show no results if successful.

TM086 - Rev. 4.1 2-3

Installation MM200 High-Speed Microwave Modem

2-2 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Theory of Operation

Theory of Operation

3.0 Theory of Operation

The MM200 Microwave Modem is a highly flexible platform for the transmission of high-speed data across links such as microwave and cable. The 2 RU-rack mount unit can be supplied in many different configurations and was designed to be expanded in the field to meet new and changing operating conditions. Available in Duplex and Simplex Configurations, the unit can be optioned with up to four industry standard interfaces in any combination, Diversity (requires two chassis), maximum rates of 50, 100, 150, 175, and 200 Mbps, and world standard AC or DC prime power.

The fully configured MM200 includes a data multiplexer/demultiplexer for interfacing to multiple data sources, a modulator, and a demodulator. The MM200 is capable of data rates up to 200 Mbps at any of six different Quadrature Amplitude Modulation (QAM) schemes including QAM256 (optional). The unique modulation/demodulation scheme uses multiple carriers to slow the modulated symbol rate to up to four times slower than conventional modems. The lower symbol rate is inherently more resilient to the multipath environment common to microwave systems. An extremely powerful equalizer, working at the lower symbol rate, removes multipath and is coupled with Reed Solomon Noise Reduction System to form a robust, reliable communications link. Additionally, two receivers can be optioned with diversity cards. The two chassis are then coupled via a high-speed data link to allow the automatic hitless switching to the receiver with no errors. This feature can be used for standard path redundancy on long links or to improve the capacity (via an increase in modulation mode) of an existing link. Refer to Figure 3-1 for operational block diagram.

3.1 Signal Flow

3.1.1 Interfaces

The transmit customer data interface consists of four “slots”. Each slot can accept one of a range of industry standard interface cards including:

 DVB ASI (1 to 160 Mbps)  DVB SPI (1 to 160 Mbps)  G.703 E3/DS3/STS-1  G.703 T1/E1  G.703 E2  OC3/STM-1 optical/electrical  Orderwire, 8 synchronous, 64 Kbps, RS-422 (one channel can be switched to ADPCM)  10Base T Ethernet

Data between interface slots can be Asynchronous and in any combination. Careful attention to the maximum data rate and its relationship to bandwidth are required for the correct operating conditions.

Some Interface Cards are capable of multiple standards such as the DS3,E3 or STS-1. These cards can operate in any one of the standards listed. Changing to another standard simply requires a change in the front panel configuration.

TM086 - Rev. 4.1 3-1

Theory of Operation MM200 High-Speed Microwave Modem

Figure 3-1. MM200 Microwave Modem Block Diagram

3.1.2 Data Muxiplexer

The multiplexer works on a constant output data rate. This data rate is directly related to the symbol rate used by the modulators. The Symbol Rate is directly related to Bandwidth of the IF carrier. The output of the multiplexer contains Reed Solomon overhead and mux/demux overhead. The ratio between multiplexer input data and output data is 184/204. To accommodate changes in the data rate supplied by the customer and the constant output of the mux, the gaps are filled with null data that is later removed by the demux. Therefore, the customer data is completely variable up to the point where the mux overflows. Variable interfaces like the DVB ASI can take full advantage of this feature.

The single stream output of the mux is sent to a digital splitter that can have between one and four outputs, which corresponds to the number of RF modulators installed.

3-2 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Theory of Operation

Data is always evenly divided between the number of channels selected i.e. each RF modulator runs at the same rate.

3.1.3 RF Modulators

The number of active modulators (up to the maximum number installed in the chassis, from 1 to

4) is determined by front panel selection in which case any unused modulator is “parked” or turned off. Each modulator is capable of modulating a carrier between 50 and 90 MHz with QAM 4,16,32,64,128 or 256 (optional). The range of symbol rates per modulator is 3.5 to 7 Msps giving a total range of 3.5 to 28 Msps. The four outputs are combined to a single IF output. Output power is adjusted by a 1 dB step attenuator.

3.1.4 RF Demodulators

The RF Demodulators mirror the RF Modulators in their specifications. The receive signal is split four ways each going to an independent demodulator. Again, the number of demodulators (up to the maximum number installed in the chassis, from 1 to 4) can be set from the front panel. The Modulator and Demodulator setup must be identical for the signal to pass.

Each demodulator has a powerful digital equalizer to remove multipath and other signal degradations.

The Demux removes the overhead and sends the appropriate data to the appropriate interface as identified by its unique PID (Packet Identifier). The Tx interface must match the Rx interface.

3.1.5 Diversity (Option)

When the system requires Diversity such as Space Diversity or Frequency Diversity, the receiving site must have two independent receive signals. Each of the two MM200 chassis are required to be optioned with a minimum of identical receivers (number of RF channels) and a diversity card. Only one chassis needs to be optioned with interfaces if no equipment redundancy is required. The transmit side of both chassis are completely independent from diversity operation and can therefore be optioned in any configuration.

Data from the demux is sent to the diversity card where it is buffered and aligned in time with the signal received from the other diversity card. Both these signals appear at the hitless switch. Error information from all receivers is sent to the hitless switch driver where a decision is made as to which stream to output. The output will be error-free providing one of the demodulator chassis is receiving an error-free signal. If both chassis are receiving errored signals, the output can still be error-free providing errors occur in different Reed-Solomon packets.

Both diversity cards send and receive data to and from the other unit, so both chassis will output the best data stream of the two units.

3.2 Start-Up Procedures

3.2.1 Initial Start-up Procedure

1. Turn the unit on.

2. Set Tx Power to ‘–10 dBm’.

3. Set the Demodulator Attenuation to ‘20 dB’.

4. Under the Mod/Demod Test, set PRBS to ‘–2e23M’.

5. Connect IF Out to IF In via a 75Ω Coax Cable.

TM086 - Rev. 4.1 3-3

Theory of Operation MM200 High-Speed Microwave Modem

6. Modem should lock with SNRs > 32 dB.

3.2.2 Sample Setups

3.2.2.1 Transmitting G.703 T3 From Interface Slot 3 (other interfaces disabled) Sample Setup

1. In System, User Mode, set to ‘Level 2’.

2. In Modulator, set the frequency to ’70 MHz’.

3. In Tx Interface 3, set Control to ‘Enable’ (ensure all other interfaces are disabled).

4. Set Interface to ‘T3’.

5. Set Data Inv to ‘Norm’.

6. Set Bandwidth in the Modulator Menu to ‘30,000,000’.

7. Set the Demodulator to a frequency of ‘70 MHz’.

8. In Rx Interface 3, set Control to ‘Enable’ (ensure all other interfaces are disabled).

9. Set Interface to ‘T3’.

10. Set Data Inv to ‘Norm’.

11. Set the bandwidth in the Demodulator Menu to ‘30,000,000’.

3.2.2.2 Transmitting STM-1 From Interface Slot 1 (other interfaces disabled) Sample Setup

1. In System, User Mode, set to ‘Level 2’.

2. In Modulator, set the frequency to ’70 MHz’.

3. In Tx Interface 1, set Control to ‘Enable’ (ensure all other interfaces are disabled).

4. Set Interface to ‘STM-1’.

5. Set Data Inv to ‘Norm’.

6. Set the bandwidth in the Modulator Menu to ‘30,000,000’.

7. Set the Demodulator to a frequency of 70 MHz.

8. In Rx Interface 1, set Control to ‘Enable’ (ensure all other interfaces are disabled).

9. Set Interface to ‘STM-1’.

10. Set Data Inv to ‘Norm’.

11. Set the Bandwidth in the Demodulator Menu to ‘30,000,000’.

3.2.3 Hardware Reset

3-4 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Theory of Operation

This section is not yet complete.

3.3 Calculating 3dB Bandwidth of MM200 Modulated Carrier

1. Find the combined interface data rate:

= Interface 1 Data Rate + Interface 2 Data Rate + Interface 3 Data Rate + Interface 4

Data Rate

2. Find the Total Data Rate plus R/S mux overhead, and guard band overhead:

= DRC x (204/184) x 1.001

3. Find Channel Baud Rate:

= DRT /(QAM x NC)

Where N

= number of channels (one to four)

and QAM = 2 for 4 QAM 4 for 16 QAM 5 for 32 QAM 6 for 64 QAM 7 for 128 QAM 8 for 256 QAM

4. Select Channel Spacing:

= from 1.1 to 1.5 times channel baud rate.

This number is usually 1.25 but may be set anywhere within the range of 1.1 to 1.5.

5. Total 3 dB bandwidth = BR

x CS x (NC – 1) + BR

3.4 Input Level

Each IF channel has an independent dynamic range of 15 - 20 dB. This allows greater performance during frequency selective fades. For normal operation, the MM200 was designed to work with radios that have automatic gain control (AGC). The radio AGC will generally use the average power of all the IF channels to set its power unlike the MM200 that independently AGCs on each IF channel. When setting up the input level to the MM200, use the following procedure.

1. If the Radio has a IF output level setting, adjust to the manufactures optimum point. If

there is none, set between 0 and –10 dBm.

2. Verify that the input to the radio is not experiencing frequency selective fading or a deep

flat fade.

3. Set the MM200 Demodulator attenuator (in the Demod menu) so that the AGC level

display reads approximately 340 (in the Monitor, Demodulator Menu). When multiple IF channels exist there will be differences in AGC from channel to channel. These should only be of concern if any channel exceeds 300 or is lower than 400. The AGC display

displays the value the M&C has assigned to the channel. This display is un-calibrated and has a useful range of approximately 300 to 655. The number is inversely proportional to the incoming signal (a higher number indicates a lower incoming signal).

TM086 - Rev. 4.1 3-5

Theory of Operation MM200 High-Speed Microwave Modem

3-6 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

User Interfaces

4.0 User Interfaces

There are four user interfaces available for the MM200. These are:

 Front Panel Control.

 Command Interface Control.

 Terminal Interface

 Ethernet SNMP

Any of these methods may be used separately or together to monitor and control the MM200. Each of these interfaces and their respective methods are discussed separately below.

4.1 Front Panel User Interface

The front panel of the MM200 allows for complete monitor and control (M&C) of all parameters and functions via a keypad, LCD display and status LEDs.

The front panel layout is shown in Figure 4−1, showing the location and labeling of the front panel. The front panel is divided into four functional areas: the Front Panel LCD Display, the Cursor Control Arrows, the Numeric Keypad, and the Front Panel LED Indicators, each described below in Table 4-1.

Figure 4-1. MM200 Front Panel Controls and Indicators

Table 4-1

Item No. Description Function

1 Front Panel LCD Display Displays MM200 Operating parameters and

Configuration data.

2 Cursor Control Arrows Controls the up, down, left, and right movement

of the cursor in the Front Panel LCD Display.

3 Numeric Keypad Allows entry of numeric data, and the Clear and

Enter function keys.

4 Front Panel LED

Indicators

TM086 - Rev. 4.1 4-1

Refer to Section 4.1.2 for an itemized description of these LEDs.

User Interfaces MM200 High-Speed Microwave Modem

↑ ↓ ← →

←

→

4.1.1 Front Panel LCD Display

The front panel display is a 2 line by 16-character LCD display. The display is lighted and the brightness can be set to increase when the front panel is currently in use. The LCD display automatically dims after a period of inactivity. The display has two distinct areas showing current information. The upper area shows the current parameter being monitored, such as ‘Frequency’ or ‘Data Rate’. The lower line shows the current value of that parameter. The LCD display is a single entry window into the large matrix of parameters that can be monitored and set from the front panel.

4.1.2 Cursor Control Arrows

The ‘Cursor’ or ’Arrow’ Keys (↑), (↓), (→), (←), are used to navigate the parameter currently being monitored or controlled. Table 4-2 describes the key functions available at the front panel.

Table 4-2.

Edit Mode Key Functions (Front Panel Only)

Parameter

Type

Fixed Point

Decimal

Unsigned

Hexadecimal

Enumerated N/A Previous

Date/ Time Changes Digit

IP Address Changes Digit Increments

Text Strings Changes

0 – 9

Changes Digit Toggles ±

Changes Digit Increments

Character

(If Signed)

Digit Value

Value in

List N/A N/A Moves

Digit Value

Increments

Character

Value

Toggles ±

(If Signed)

Decrements

Digit Value

Value in

List

Decrements

Digit Value

Decrements

Character

Value

Moves

Cursor 1

Position

Left

Moves

Cursor 1

Position

Left N/A N/A N/A N/A

Cursor 1

Position

Left

Moves

Cursor 1

Position

Left

Moves

Cursor 1

Position

Left

Moves

Cursor 1

Position

Right

Moves

Cursor 1

Position

Right

Moves

Cursor 1

Position

Right

Moves

Cursor 1

Position

Right

Moves

Cursor 1

Position

Right

‘Clear’ &

N/A N/A

Clears to

Left of

Cursor

Inclusive

Clears to

Inclusive

‘Clear’ &

Right of

Cursor

4.1.3 Front Panel Keypad

The Front Panel Keypad consists of a 10-key numeric entry with two addi tional keys for the ‘Enter’ and ‘Clear’ functions. Table 4-2 describes the key functions available at the front panel.

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MM200 High-Speed Microwave Modem User Interfaces

4.1.4 Front Panel LED Indica tors

There are 12 LEDs on the MM200 front panel to indicate the status of the MM200’s operation (refer to Table 4-3). The LED colors maintain a consistent meaning. Green signifies that the indication is appropriate for normal operation, Yellow means that there is a condition not proper for normal operation, and Red indicates a fault condition that will result in lost communications.

Table 4-3

LED Color Function

Transmit On Green Indicates the MM200 Transmitter is turned on.

Major Alarm Red Indicates that the transmit direction has failed, losing traffic. Minor Alarm Yellow Indicates a transmit warning condition exists.

Test Mode Yellow Indicates the modulator is involved in a current test mode

activity.

Signal Lock Green Indicates the modem has received a signal and is locked Major Alarm Red Receive direction failed. Minor Alarm Yellow Receive learning condition.

Test Mode Yellow Indicates the modem is involved in a current test mode

activity.

Power Green Indicates the MM200 unit is currently powered-up.

Fault Red Indicates a general equipment fault.

Event Yellow Indicates that a new event has been logged into the Event

Buffer.

Remote Green Indicates that the unit is set to respond to the remote control

or terminal input.

4.1.5 Parameter Setup

Use the four arrow keys, to navigate the menu tree and select the parameter to be set. After arriving at a parameter that needs to be modified, depress <ENTER>. The first space of the modifiable parameter highlights (blinks) and is ready for a new parameter to be entered. After entering the new parameter using the keypad, depress <ENTER> to lock in the new parameter. If a change needs to be made prior to pressing <ENTER>, depress <CLEAR> and the display defaults back to the original parameter. Depress <ENTER> again and re-enter the new parameters followed by <ENTER>.

Following a valid input, the MM200 will place the new setting into the nonvolatile EEPROM making it available immediately and available the next time the unit is powered-up.

TM086 - Rev. 4.1 4-3

User Interfaces MM200 High-Speed Microwave Modem

4.2 Front Panel Control Screen Me nus

The Front Panel Control Screen Menus are listed below. The MM200 Microwave Modem may be operated in three different levels:

Level 0 - is for specialized factory configurations. Every screen is available including those used for factory calibration and diagnostics.

Level 1 – includes those screens necessary for field maintenance. Level 2 – is the default setting and is shipped from the factory in this mode. The screens

are available that provide the quickest form of setup and use.

Note: Screens Menus are listed below by level (L0, L1, and L2) and may be Read/Write (RW) or Read Only (RO).

4.3 Level 2 Menu Screens

Level 2 menus screens allow for the quickest operation and system setup.

4.3.1 Main Menu Screens

Main Menu Screens (one of which is a Title Screen) are listed below:

MM-200 MODULATOR Title Screen: Not a modifiable screen.

MODULATOR (menu): DEMODULATOR (menu): REPEATER (menu): APC (menu): TX INTERFACE (menu): RX INTERFACE (menu): MONITOR (menu): ALARMS (menu): SYSTEM (menu): TEST (menu):

4-4 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

FREQUENCY (Hz)

{50 – 90 MHz}

Frequency Control is set to ‘User’.

CHANNELS

{Auto, 1 - 4}

better bandwidth efficiency.

Controls the total Symbol Rate.

required bandwidth.

BANDWIDTH (Hz)

Enters the 3 dB bandwidth of the

dB bandwidth.

UTILIZATION (%) *

Displays the percentage of the data being

channels).

MAX PAYLOAD (Hz)

Displays the maximum total data rate that is useable for the current settings.

SPECTRUM

{Normal, Inverted}

through the radio, try these settings.

Sets the IF Output Power in 1 dB steps.

Forces the Carrier to Off or On.

4.3.2 MODULATOR (menu) *

The Modulator Menu Screens are listed below:

Screen Name Selections and Des criptions L2

Controls the current center band of the operating frequency width, or the individual channel frequency if the System

Controls the number of channel cards where 0 = auto, and 1 – 4 = the number of cards. Increase this number for better performance. Lower this number for

SYMB RATE (SPS) {3.5 – 28 Msps} MODULATION {QAM4, QAM16, QAM32, QAM64,

QAM128, QAM256}

Displays the current Modulation Scheme. Performance is increased by using the lowest QAM Mode possible for the

modulated IF Output. When the radio must meet a particular spectral mask, set this number to something below the masks 3 dB points (i.e. 5% less). For best performance, do not allow the MM200s bandwidth to be greater than the radios 1

transferred that is being used by the selected interfaces. Must be less than 100% (Maximize this number for best bandwidth efficiency by lowering the symbol rate, QAM Mode, or the number of

Used for inverting the spectrum. If the unit cannot lock to the signal after passing

TX POWER {0 to –25 dBm} TX ENABLE {Off, On}

TM086 - Rev. 4.1 4-5

User Interfaces MM200 High-Speed Microwave Modem

FREQUENCY (Hz)

{50 – 90 MHz}

operating frequency width.

CHANNELS

{Auto, 1 – 4, Debug}

better bandwidth efficiency.

Controls the total Symbol Rate.

Scheme.

BANDWIDTH (Hz)

Displays the frequency difference between and the lowest channel’s lower 3-dB point.

UTILIZATION (%)

Displays the percentage of the data being

channels.

Displays the maximum total data rate that is useable for the current settings.

SPECTRUM

{Normal, Inverted}

ATTENUATION

{0 - 31}

in 1 dB steps.

ACQUISITION (men u ):

The Demodulator Acquisition Frequency

2. Continue to try to acquire for the length

4.3.3 DEMODULATOR (menu)

The Demodulator Menu Screens are listed below:

Screen Name Selections and Des criptions L2

Displays the current center band of the

Controls the number of channel cards where 0 = auto, and 1 – 4 = the number of cards. Increase this number for better performance. Lower this number for

SYMB RATE (SPS) {3.5 – 28 Msps} DEMODULATION {QAM4, QAM16, QAM32, QAM64,

QAM128, QAM256}

Displays the current Demodulation

the highest channel’s upper 3-dB point

MAX PAYLOAD (Hz)

transferred that is being used by the selected interfaces. Must be less than 100%. Maximize this number for best bandwidth efficiency by lowering the symbol rate, QAM Mode, or the number of

Sets the Demodulator Input IF Attenuator

range can be set by the user. This is required at higher QAM rates when using radios with significant frequency drift. As QAM rates increase, the ability of the receiver to acquire to a signal that is offset from the programmed demodulator frequency is reduced. At QAM256 the acquisition window can be as low as ± 50 kHz. Yet at QAM4, the window can be over ± 1 MHz. This range can be further reduced by noise or degraded receive signals.

When trying to acquire a signal, the MM200 follows this procedure:

1. Try to acquire at the Demodulator Programmed Frequency.

4-6 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

of time set in ACQ DELAY (sec).

DIVERSITY (menu):

MODE

Diversity

{Disable, Auto, Force A, Force B}

ACQ CONTROL

ACQ BW (kHz)

ACQ DELAY (sec)

REACQ DELAY (sec)

ACQ STEP (kHz)

TRACKING STEP (Hz)

3. Step the Demodulator frequency up one step size programmed in ACQ STEP (KHz).

4. Repeat Steps 1 through 3 until the Demodulator Frequency exceeds the + side of the ACQ BW.

5. Set the Demodulator to the negative side of ACQ BW.

6. Repeat until demodulator acquires. Once acquired, the demodulator will have an offset between the frequency at which the demodulator is set and the incoming signal frequency. This is due to demodulator frequency acquisition window and radio drift. This can cause degraded performance and, in the case of radio drift, possible loss of lock. To overcome this, once acquired, the demodulator reduces this offset to 0 Hz by slowly incrementing/decrementing the demodulator frequency. The speed can be adjusted by adjusting the TRACK STEP (Hz). It is suggested that this parameter normally be set to 10 Hz.

{Off, Acquire}

Always set to Acquire.

{50 KHz – 400 kHz}

Sets the ± acquisition bandwidth. There is a tradeoff between this number and acquisition speed.

{10 – 255 sec} Sets the time that the demodulator stays at a frequency before trying the next step.

{10 – 255 sec}

Sets the time that the demodulator remains at frequency after it first loses lock.

{10 – 100 kHz}

Sets the frequency step size the demodulator will take when trying to acquire.

{10 – 100 Hz}

Sets the step size that the demodulator will use to remove the frequency error of a locked signal. Normally set to 10 Hz.

TM086 - Rev. 4.1 4-7

User Interfaces MM200 High-Speed Microwave Modem

Controls the diversity mode.

Enables the repeater feature.

TRANSMIT (menu):

APC Transmit settings.

MONITOR (menu): MUX STATUS

FIFO A STATUS

FIFO B STATUS CHANNEL A ERR CHANNEL B ERR CHANNEL AB ERR

Diversity channel and FIFO status.

{Unused, Channel A, Channel B, Null Frames}

Specifies the multiplexer status.

{No Flags, Empty, Full}

Specifies the status of FIFO A.

{No Flags, Empty, Full}

Specifies the status of FIFO B. Displays the Channel A error counter. Displays the Channel B error counter. Displays the Channel A and B error

counter.

RO RO RO

4.3.4 REPEATER (Menu)

The primary Repeater screen is listed below:

Screen Name Selections and Des criptions L2 MODE {Off, On}

4.3.4 APC (Menu)

The primary APC screen is listed below:

Screen Name Selections and Des criptions L2

XMT CONTROL

MAX TX LEVEL MIN TX LEVEL DEF TX LEVEL STEP SIZE APC RANGE APC SPEED

{TXDOWN, TXUP, AUTO}

Controls the local TX level. Sets the maximum TX power level. Shows the minimum TX power level. Sets the default TX power level. Sets the TX power step size. Sets the power level range. Sets the TX power step speed.

RO RW RW RW RW

4-8 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

RECEIVE (menu):

APC Receive settings.

Transmit Interface 1

RCV CONTROL

LEVEL (dBm) HYSTERESIS

MONITOR (menu): XMT STATUS

RCV STATUS

4.3.5 TX INTERFACE (Menu)

The primary Tx Interface Screens and their sub-menus as listed below:

Screen Name Selections and Descriptions L2 TX INTRFC1 (menu):

CONTROL

DATA RATE (BPS)

INTERFACE

FRAMING

JIT CONTROL

NULL PID

{RXDOWN, RXUP, AUTO}

Controls the remote TX level. Desired RX power level. APC Hysteresis.

APC Monitor.

{NOCHANGE, TXDOWN, TXUP}

Displays APC transmit status.

{NOCHANGE, RXDOWN, RXUP}

Displays APC receive status.

{Disable, Enable}

Enables or disables the installed interface. Dependant upon interface type. For

variable interfaces, this unit must be set by the user. Will not show up on fixed rate interfaces.

Dependant upon interface type. Selects the interface standard for multiple standard interface card, or displays standard for fixed interfaces.

{Unframed, MPEG188, MPEG204}

Used for DVB Interface framing selection. Shows only in DVB Framed Interfaces.

Note: Only appears when s u p p o rted by the installed interface.

{NORMAL, STAMP2, STAMP3}

Normal or Time-Stamped packets.

{2-Byte Packet ID}

Defines the 2-byte packet ID, program ID for null padding packets. This number must match the corresponding receive demux null PID. This number must be unique and not be duplicated by an interface PID or any DVB transport stream

RW RW

TM086 - Rev. 4.1 4-9

User Interfaces MM200 High-Speed Microwave Modem

PIDs on a framed interface.

by the installed interface.

INTRFC1 (menu) for descriptions.

TX INTRFC3 (menu)

Transmit Interface 3. Refer to TX INTRFC1 (menu) for descriptions.

INTRFC1 (menu) for descriptions.

RX INTRFC1

Receive Interface 1

CLK POLARITY

DATA INVERT

BB LOOP

VOLUME

Note: Only appears when using DVB Framed Interfaces such as L0I.

{Normal, Inverted}

Sets the polarity of the clock.

Note: Only appears when s u p p o rted by the installed interface.

{Normal, Inverted}

Sets the polarity of the data.

Note: Only appears when s u p p o rted by the installed interface.

{Normal, Inverted}

Baseband Loopback. Not yet implemented, for future expansion.

{0 - 255}

Allows the user to set volume level (Orderwire only).

Note: Only appears when s u p p o rted

TX INTRFC2 (menu) Transmit Interface 2. Refer to TX

TX INTRFC4 (menu) Transmit Interface 4. Refer to TX

4.3.6 RX INTERFACE (Menu)

The primary Rx Interface Screens and their sub-menus as listed below:

Screen Name Selections and Descriptions L2

CONTROL

DATA RATE (BPS)

INTERFACE

FRAMING

{Disable, Enable}

Enables or disables the installed interface. Dependant upon interface type. For

variable interfaces, this unit must be set by the user. Will not show up on fixed rate interfaces.

Dependant upon interface type. Selects the interface standard for multiple standard interface card, or displays standard for fixed interfaces.

{Unframed, MPEG188, MPEG204}

Used for DVB Interface framing selection. Shows only in DVB Framed Interfaces.

4-10 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

Note: Only appears when s u p p o rted

JIT CONTROL

NULL PID

CLK POLARITY

DATA INVERT

TERR LOOP

PRBS

BUFF ENABLE

CLK SOURCE

CLK FREQ

BUFF DEPTH (MS)

by the installed interface.

{INCH, SLOW, MEDIUM, FAST, STAMP2, STAMP3}

Clock recovery DLL speed, or TimeStamped packets.

{2-Byte Packet ID}

Note: Only appears when using DVB Framed Interfaces such as L0I.

{Normal, Inverted}

Sets the polarity of the clock.

Note: Only appears when s u p p o rted by the installed interface.

{Normal, Inverted}

Sets the polarity of the data.

Note: Only appears when s u p p o rted by the installed interface.

{Normal, Loopback}

Interface Loopback

{Normal, Ones, PAT001, PRBS2047}

Breaks the data path and inserts a pseudo random sequence into the modulators. ‘None’ is used for normal operation, the others are for Radyne Inc. Corporation configuration.

{Disable, Enable}

Not currently implemented, for future expansion.

{RxClk, Ext BNC, Ext Bal, Internal, TxCLK}

Not currently implemented, for future expansion.

{2.048 MHz, 5.0 MHz, 10.0 MHz, Data Rate}

Not currently implemented, for future expansion.

TM086 - Rev. 4.1 4-11

User Interfaces MM200 High-Speed Microwave Modem

PRESS CLR TO

Centers the buffer.

that support Byte Gap only).

RX INTRFC2

Receive Interface 2. Refer to RX

INTRFC1 (menu) for descriptions.

RX INTRFC3

Receive Interface 3. Refer to RX INTRFC1 (menu) for descriptions.

RX INTRFC4

Receive Interface 4. Refer to RX INTRFC1 (menu) for descriptions.

Controls the current center band of the

4.4 All Level Menu Screens

4.4.1 Main Menu Screens

Main Menu Screens (one of which is a Title Screen) are listed below:

4.4.2 MODULATOR (menu) *

The Modulator Menu Screens are listed below:

CENTER BUFFER VOLUME

BYTE GAP

MM-200 MODULATOR Title Screen:

Not a modifiable screen.

MODULATOR (menu): DEMODULATOR (menu): REPEATER (menu): APC (menu): TX INTERFACE (menu): RX INTERFACE (menu): MONITOR (menu): ALARMS (menu):

SYSTEM (menu): TEST (menu):

Screen Name Selections and Des criptions L0 L1 L2 FREQUENCY (Hz) {50 – 90 MHz}

{0 - 255}

Allows the user to set volume level (Orderwire only).

Note: Only appears when s u p p o rted by the installed interface.

{0 - 255}

Allows the user to set ASI byte gapping. Set to 0 for Burst mode. (ASI Interfaces

4-12 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

operating frequency width, or the Frequency Control is set to ‘User’.

CHANNELS

{Auto, 1 - 4}

better bandwidth efficiency.

SEPARATION

{100% - 150%}

channels.

DATA RATE (BPS)

{7 – 200 Mbps}

Controls the total Data Rate.

SYMB RATE (SPS)

{3.5 – 28 Msps}

Controls the total Symbol Rate.

MODULATION

{QAM4, QAM16, QAM32, QAM64,

required bandwidth.

BANDWIDTH (Hz)

Enters the 3 dB bandwidth of the

dB bandwidth.

UTILIZATION (%) *

Displays the percentage of the data being

channels).

Displays the maximum total data rate that is useable for the current settings.

SPECTRUM

{Normal, Inverted}

through the radio, try these settings.

TX POWER

{0 to –25 dBm}

Sets the IF Output Power in 1 dB steps.

TX ENABLE

{Off, On}

Forces the Carrier to Off or On.

individual channel frequency if the System

Controls the number of channel cards where 0 = auto, and 1 – 4 = the number of cards. Increase this number for better performance. Lower this number for

Default 125%. Selects the IF Frequency Separation between channels expressed as a percentage of the channel symbol rate or the symbol rate/number of

QAM128, QAM256}

Displays the current Modulation Scheme. Performance is increased by using the lowest QAM Mode possible for the

MAX PAYLOAD (Hz)

4.4.3 DEMODULATOR (menu)

The Demodulator Menu Screens are listed below:

transferred that is being used by the selected interfaces. Must be less than 100% (Maximize this number for best bandwidth efficiency by lowering the symbol rate, QAM Mode, or the number of

Used for inverting the spectrum. If the unit cannot lock to the signal after passing

TM086 - Rev. 4.1 4-13

User Interfaces MM200 High-Speed Microwave Modem

FREQUENCY (Hz)

{50 – 90 MHz}

operating frequency width.

CHANNELS

{Auto, 1 - 4}

better bandwidth efficiency.

cover over the original symbol rate.

DATA RATE (BPS)

{7 – 200 Mbps}

Controls the total Data Rate.

SYMB RATE (SPS)

{3.5 – 28 Msps}

Controls the total Symbol Rate.

DEMODULATION

{QAM4, QAM16, QAM32, QAM64,

Scheme.

BANDWIDTH (Hz)

Displays the frequency difference

3-dB point.

UTILIZATION (%)

Displays the percentage of the data

of channels.

MAX PAYLOAD (Hz)

Displays the maximum total data rate that is useable for the current settings.

SPECTRUM

{Normal, Inverted}

ATTENUATION

{0 - 31}

in 1 dB steps.

ACQUISITION (men u ):

The Demodulator Acquisition Frequency

Screen Name Selections and Des criptions L0 L1 L2

Displays the current center band of the

Controls the number of channel cards where 0 = auto, and 1 – 4 = the number of cards. Increase this number for better performance. Lower this number for

SEPARATION {100% - 150%}

Selects the IF Frequency Separation in percent, which is the additional bandwidth percentage that the carrier will

QAM128, QAM256}

Displays the current Demodulation

4-14 TM086 - Rev. 4.1

between the highest channel’s upper 3dB point and the lowest channel’s lower

being transferred that is being used by the selected interfaces. Must be less than 100%. Maximize this number for best bandwidth efficiency by lowering the symbol rate, QAM Mode, or the number

Sets the Demodulator Input IF Attenuator

When trying to acquire a signal, the MM200 follows this procedure:

MM200 High-Speed Microwave Modem User Interfaces

ACQ CONTROL

ACQ BW (kHz)

ACQ DELAY (sec)

REACQ DELAY (sec)

ACQ STEP (kHz)

1. Try to aquifer at the Demodulator Programmed Frequency.

2. Continue to try to Acquire for the length of time set in ACQ DELAY (sec).

3. Step the Demodulator frequency up one step size programmed in ACQ STEP (KHz).

4. Repeat Steps 1 through 3 until the Demodulator Frequency exceeds the + side of the ACQ BW.

5. Set the Demodulator to the negative side of ACQ BW.

{Off, Acquire}

Always set to Acquire.

{50 KHz – 400 kHz}

Sets the ± acquisition bandwidth. There is a tradeoff between this number and acquisition speed.

{10 – 255 sec} Sets the time that the demodulator stays at a frequency before trying the next step.

{10 – 255 sec}

Sets the time that the demodulator remains at frequency after it first loses lock.

{10 – 100 kHz}

Sets the frequency step size the demodulator will take when trying to acquire.

TM086 - Rev. 4.1 4-15

User Interfaces MM200 High-Speed Microwave Modem

TRACKING STEP (Hz)

{10 – 100 Hz}

DIVERSITY (menu):

Diversity

MODE

MONITOR (menu): MUX STATUS

FIFO A STATUS

FIFO B STATUS CHANNEL A ERR CHANNEL B ERR CHANNEL AB ERR

Sets the step size that the demodulator will use to remove the frequency error of a locked signal. Normally set to 10 Hz.

{Disable, Auto, Force A, Force B}

Controls the diversity mode. Diversity channel and FIFO status.

{Unused, Channel A, Channel B, Null Frames}

Specifies the multiplexer status.

{No Flags, Empty, Full}

Specifies the status of FIFO A.

{No Flags, Empty, Full}

Specifies the status of FIFO B. Displays the Channel A error counter. Displays the Channel B error counter. Displays the Channel A and B error

counter.

RW RW RW

RO RO

4-16 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

MODE

{Off, On}

Enables the repeater feature.

TRANSMIT (menu):

APC Transmit settings.

4.4.4 REPEATER (menu)

The Repeater Menu Screen is listed below:

Screen Name Selections and Des criptions L0 L1 L2

4.3.4 APC (Menu)

The primary APC screen is listed below:

Screen Name Selections and Des criptions L0 L1 L2

XMT CONTROL

MAX TX LEVEL MIN TX LEVEL DEF TX LEVEL STEP SIZE APC RANGE APC SPEED

RECEIVE (menu): RCV CONTROL

LEVEL (dBm) HYSTERESIS

MONITOR (menu): XMT STATUS

RCV STATUS

{TXDOWN, TXUP, AUTO}

Controls the local TX level. Sets the maximum TX power level. Displays the minimum TX power level. Sets the default TX power level. Sets the TX power step size. Sets the TX APC range Sets the TX power step speed.

APC Receive settings.

{RXDOWN, RXUP, AUTO}

Controls the remote TX level. Desired RX power level. APC Hysteresis.

APC Monitor.

{NOCHANGE, TXDOWN, TXUP}

Displays APC transmit status.

{NOCHANGE, RXDOWN, RXUP}

Displays APC receive status.

RO RW RW RW RW

RW RW

RO RW RW RW RW

RW RW

RO RW RW RW RW

RW RW

4.4.5 TX INTERFACE (Menu)

TM086 - Rev. 4.1 4-17

User Interfaces MM200 High-Speed Microwave Modem

TX INTRFC1 (menu):

Transmit Interface 1

Baseband Loopback. Not yet

The primary Tx Interface Screens and their sub-menus as listed below:

Screen Name Selections and Des criptions L0 L1 L2

CONTROL

DATA RATE (BPS)

INTERFACE

FRAMING

JIT CONTROL

NULL PID

PID

CLK POLARITY

DATA INVERT

BB LOOP

{Disable, Enable}

Enables or disables the installed interface. Dependant upon interface type. For

variable interfaces, this unit must be set by the user. Will not show up on fixed rate interfaces.

Dependant upon interface type. Selects the interface standard for multiple standard interface card, or displays standard for fixed interfaces.

{Unframed, MPEG188, MPEG204}

Used for DVB Interface framing selection. Shows only in DVB Framed Interfaces.

Note: Only appears when s u p p o rted by the installed interface.

{NORMAL, STAMP2, STAMP3} Normal or Time-Stamped packets.

{2-Byte Packet ID}

Note: Only appears when using DVB Framed Interfaces such as L0I.

Interface Packet ID. This number must match the corresponding interface at the Rx site. This number must be unique and not duplicated on other Tx interfaces.

{Normal, Inverted}

Sets the polarity of the clock.

Note: Only appears when supported by the installed interface.

{Normal, Inverted}

Sets the polarity of the data.

{Normal, Inverted}

4-18 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

implemented, for future expansion.

(Orderwire only).

TX INTRFC2 (menu)

Transmit Interface 2. Refer to TX

INTRFC1 (menu) for descriptions.

INTRFC1 (menu)

TX INTRFC4 (menu)

Transmit Interface 4. Refer to TX INTRFC1 (menu) for descriptions.

VOLUME

TX INTRFC3 (menu) Transmit Interface 3. Refer to TX

{0 - 255}

Allows the user to set volume level

for descriptions.

TM086 - Rev. 4.1 4-19

User Interfaces MM200 High-Speed Microwave Modem

RX INTRFC1

Receive Interface 1

Note: Only appears when s u p p o rted

4.4.6 RX INTERFACE (Menu)

The primary Rx Interface Screens and their sub-menus as listed below:

Screen Name Selections and Des criptions L0 L1 L2

CONTROL

DATA RATE (BPS)

INTERFACE

FRAMING

JIT CONTROL

NULL PID

PID

CLK POLARITY

DATA INVERT

{Disable, Enable}

Enables or disables the installed interface. Dependant upon interface type. For

variable interfaces, this unit must be set by the user. Will not show up on fixed rate interfaces.

Dependant upon interface type. Selects the interface standard for multiple standard interface card, or displays standard for fixed interfaces.

{Unframed, MPEG188, MPEG204}

Used for DVB Interface framing selection. Shows only in DVB Framed Interfaces.

Note: Only appears when s u p p o rted by the installed interface.

{INCH, SLOW, MEDIUM, FAST, STAMP2, STAMP3}

Clock recovery DLL speed, or TimeStamped packets.

{2-Byte Packet ID}

Note: Only appears when using DVB Framed Interfaces such as L0I.

Interface Packet ID. This number must match the corresponding interface at the Rx site. This number must be unique and not duplicated on other Tx interfaces.

{Normal, Inverted}

Sets the polarity of the clock.

Note: Only appears when s u p p o rted by the installed interface.

{Normal, Inverted}

Sets the polarity of the data.

4-20 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

by the installed interface.

that support Byte Gap only).

INTRFC1 (menu) for descriptions.

RX INTRFC3

Receive Interface 3. Refer to RX INTRFC1 (menu) for descriptions.

RX INTRFC4

Receive Interface 4. Refer to RX INTRFC1 (menu)

MON MOD (menu)

Monitors the state of the modulator.

TERR LOOP

BUFF ENABLE

CLK SOURCE

CLK FREQ

BUFF DEPTH (MS)

PRESS CLR TO CENTER BUFFER

VOLUME

BYTE GAP

{Normal, Loopback}

Not yet implemented, for future expansion.

{Disable, Enable}

Not yet implemented, for future expansion.

{RxClk, Ext BNC, Ext Bal, Internal, TxCLK}

Not yet implemented, for future expansion.

{2.048 MHz, 5.0 MHz, 10.0 MHz, Data Rate}

Not yet implemented, for future expansion.

Centers the buffer.

Note: Rx Interface between Data and Volume may need to be masked off until needed.

{0 - 255}

Allows the user to set volume level (Orderwire only).

Note: Only appears when s u p p o rted by the installed interface.

{0 - 255}

Allows the user to set ASI byte gapping. Set to 0 for Burst mode. (ASI Interfaces

RX INTRFC2 Receive Interface 2. Refer to RX

4.4.7 MONITOR (Menu)

The Monitor Screens and their sub-menus are listed below. Those marked with an asterisk (*) are used for detailed system debug when consulting with Radyne Inc. .

Screen Name Selections and Des criptions L0 L1 L2

TM086 - Rev. 4.1 4-21

for descriptions.

User Interfaces MM200 High-Speed Microwave Modem

Displays number of installed channels

TX ENABLED

INSTALLED CHs

OFF, ON}

Displays TX Power Control Status

{0 – 4}

MON DMD (menu):

DMD SNR X 10

DMD AGC

LEVEL (dBm) LEVEL 1&2 (dBm)

LEVEL 3&4 (dBm)

PRE FEC1 BER POST FEC1 BER PRE FEC2 BER

POST FEC2 BER PRE FEC3 BER

POST FEC3 BER PRE FEC4 BER POST FEC4 BER DMD1 STATE DMD2 STATE DMD3 STATE DMD4 STATE

Monitors the state of the demodulator. {000 – 999 000 – 999 000 – 999 000 -

999}

Displays the demodulator signal-to-noise ratio for each channel. Divide each number by 10 to get the dB value (i.e. 355 = 35.5 dB).

{000 – 655 000 – 655 000 – 655 000 655}

Displays a relative indication of the AGC level of each channel. Optimum performance is approximately 320 – 420. The lower the number, the higher the IF signal.

Monitors the aggregate input level in dBm. Monitor channels 1 and 2 input levels in

dBm. Monitor channels 3 and 4 input levels in

dBm. Displays channel 1 pre FEC BER. Displays channel 1 post FEC BER. Displays channel 2 pre FEC BER. Displays channel 2 post FEC BER. Displays channel 3 pre FEC BER. Displays channel 3 post FEC BER. Displays channel 4 pre FEC BER. Displays channel 4 post FEC BER.

{Locked, Unlocked} {Locked, Unlocked} {Locked, Unlocked} {Locked, Unlocked}

RO RO

RO RO RO RO RO RO RO RO RO RO RO RO

4-22 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

OFFST FRQ1

Displays channel 1 offset frequency

Displays number of installed channels

MON MUX (menu)

TX INTF4 RATE

Monitors the multiplexor

MON DMX (menu)

RX INTF4 RATE

Monitors the demultiplexor

MON COM (menu)

INTERFACE 4

Monitors the common state.

OFFST FRQ2 OFFST FRQ3 OFFST FRQ4 INSTALLED CHs

TX INTF1 RATE TX INTF2 RATE TX INTF3 RATE

RX INTF1 RATE RX INTF2 RATE RX INTF3 RATE

Displays channel 2 offset frequency Displays channel 3 offset frequency Displays channel 4 offset frequency

{0 – 4}

Interface 1 tx data rate (KBPS) Interface 2 tx data rate (KBPS) Interface 3 tx data rate (KBPS) Interface 4 tx data rate (KBPS)

Interface 1 rx data rate (KBPS) Interface 2 rx data rate (KBPS) Interface 3 rx data rate (KBPS) Interface 4 rx data rate (KBPS)

RO RO RO RO

INTERFACE 1 INTERFACE 2 INTERFACE 3

Specifies Interface 1 type. Specifies Interface 2 type. Specifies Interface 3 type. Specifies Interface 4 type.

RO RO RO RO

TM086 - Rev. 4.1 4-23

User Interfaces MM200 High-Speed Microwave Modem

EVENT BUFF

{Empty, Number of events}

maintaining the maximum 40 events.

ERASE EVENTS

Removes all events from the buffer.

ACTIVE ALRMS (menu)

Current alarms.

LATCHED ALRM (menu)

Previous alarms that have been logged.

CLEAR ALARMS

{Ent=Y, Clr=N}

Clears all latched alarms.

An alarm that will terminate transmissions.

Displays the number of events that has occurred and the event log. The event log is the history of events recorded in the event buffer. A maximum of 40 events may be stored in the buffer. Upon receipt of the 41 automatically deleted, and so on,

PRESS CLR TO

event, the first received event is

4.4.8 ALARMS (Menu)

The primary Alarm Menus are listed below:

Screen Name Selections and Des criptions L0 L1 L2

4.4.8.1 Active Alarms

The Active Alarm Screens are listed below, including those related to the FPGA (Field Programmable Gate Array):

Screen Name Selections and Descriptions L0 L1 L2 MAJOR TX (menu)

MOD HW GLUE

MOD HW DATA

MDD0 HW FPGA

MDD1 HW FPGA

MDD2 HW FPGA

MDD3 HW FPGA

MDD0 PLLLOCK

Red LED will illuminate.

{Masked, Unmasked}

FPGA failure. {Masked, Unmasked}

RF PLL not locked.

4-24 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

MDD1 PLLLOCK

{Masked, Unmasked}

RF PLL not locked.

MAJOR RX (menu)

DDD3 PLLLOCK

An alarm that will terminate reception.

RF PLL not locked.

MAJOR MUX (menu)

INT4 HW FPGA

An alarm that will terminate mux

MDD2 PLLLOCK

MDD3 PLLLOCK

RF PLL not locked. {Masked, Unmasked}

DMD HW GLUE

DMD HW DATA SIGNAL LOCK SYNC LOCK

DAT PLL LOCK DIVERSITY FPGA DDD0 HW FPGA

DDD1 HW FPGA DDD2 HW FPGA DDD3 HW FPGA

DDD0 PLLLOCK DDD1 PLLLOCK

DDD2 PLLLOCK

Red LED will illuminate. FPGA failure. FPGA failure. Monitors the system signal lock states. Monitors the system sync lock states. Monitors the data PLL lock states. FPGA failure. FPGA failure. FPGA failure. FPGA failure. FPGA failure. RF PLL not locked. RF PLL not locked. RF PLL not locked.

RO RO RO RO RO RO RO RO RO RO RO RO RO RO

MUX HW FPGA INT0 HW FPGA INT2 HW FPGA

INT3 HW FPGA

TM086 - Rev. 4.1 4-25

operations. Red LED will illuminate. FPGA failure. FPGA failure. FPGA failure. FPGA failure. FPGA failure.

RO RO RO RO RO

User Interfaces MM200 High-Speed Microwave Modem

MAJOR DMX (menu)

INT4 HW FPGA

An alarm that will terminate demux

MINOR TX (menu):

An alarm that will not terminate

descriptions.

An alarm that will not terminate reception.

FIFO Tracking error

DMX HW FPGA INT0 HW FPGA INT2 HW FPGA INT3 HW FPGA

FRAME LOCK CHANNEL 1 (menu) LOOP LOCK

FEC LOCK FIFO FULL FIFO EMPTY FIFO ACTIVE CHANNEL 2 (menu) CHANNEL 3 (menu)

CHANNEL 4 (menu)

operations. Red LED will illuminate. FPGA failure. FPGA failure. FPGA failure. FPGA failure. FPGA failure.

transmissions. Yellow LED will illuminate. Modulator frame detect.

Modulator tracking. Modulator has a valid sync lock. Modulator FIFO overflow. Modulator FIFO underflow. Modulator FIFO active. Refer to CHANNEL 0 (menu) for

descriptions. Refer to CHANNEL 0 (menu) for

RO RO RO RO RO

MINOR RX (menu)

CHANNEL 1 (menu) QAM LOCK

FEC LOCK FIFO FULL

FIFO EMPTY SYNC LOCK

FIFO RELOAD FIFO POS

Yellow LED will illuminate.

Demod channel constellation lock. Demod channel sync and FEC lock. Demod channel FIFO overflow. Demod channel FIFO underflow. Demod channel loss of sync byte.

Indicates the FIFO state. Skew detector.

RO RO RO RO RO RO RO RO

4-26 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

TRACK FAULT

MINOR MUX (menu)

An alarm that will not terminate mux

descriptions.

MINOR DMX (menu)

PLL LOCK

An alarm that will not terminate demux

CHANNEL 2 (menu)

CHANNEL 3 (menu)

CHANNEL 4 (menu) APC (menu)

RCV OVERRUN CMD INVALID

Refer to CHANNEL 0 (menu) for descriptions.

APC Receive overrun error APC Invalid command received

RO RO

MINOR INT1 (menu) CLK ACTIVITY DAT ACTIVITY FIFO FULL FIFO EMPTY FRAME VALID

SIGNAL LOSS MINOR INT2 (menu)

MINOR INT3 (menu)

MINOR INT4 (menu)

DMX SYNCLOCK MINOR INT1 (menu)

CLK ACTIVITY DAT ACTIVITY

FIFO FULL FIFO EMPTY

operations. Red LED will illuminate.

No clock activity on Tx Interface channel. No data activity on Tx Interface channel. Tx Interface FIFO overflow. Tx Interface FIFO underflow. Tx Interface MPEG framing. Tx Interface loss of signal. Refer to MINOR INT0 (menu) for

descriptions. Refer to MINOR INT0 (menu) for

operations. Yellow LED will illuminate. Demux is not receiving valid packets.

No Rx channel packet activity. No Rx channel data activity. Rx channel FIFO overflow. Rx channel FIFO underflow.

RO RO RO RO RO RO

RO RO RO RO

RO RO RO RO RO RO

RO RO RO RO

TM086 - Rev. 4.1 4-27

User Interfaces MM200 High-Speed Microwave Modem

Buffer clock PLL not locked.

descriptions.

COMMON (menu)

An alarm that affects both transmit and

FPGA failure. Refer to Section 6.1.

CONTROL MODE

{Front Panel, Computer}

or via a remote computer.

USER MODE

{Level 0, Level 1, Level 2}

control.

DEBUG MODE

{Off, On}

Mode

LAST RATE

{Symbol, Data, Auto}

allows both to vary.

FREQ PLAN

Controls the user frequency plan.

APC ENABLE

{Off, On}

Controls APC subsystem.

MAX MODULATION

{QAM4, QAM16, QAM32, QAM64,

modulation for automatic calculations.

MINOR INT2 (menu)

MINOR INT3 (menu)

MINOR INT4 (menu)

GLUE HW FPGA

Refer to MINOR INT0 (menu) for descriptions.

Refer to MINOR INT0 (menu) for descriptions. Refer to MINOR INT0 (menu) for

receive. FPGA failure. Refer to Section 6.1.

TEST HW FPGA

4.4.8.2 Latched Alarms

The Latched Alarm Screens are the same as Active Alarms Screens. Refer to Section 4.1.7.1 for descriptions.

4.4.8.3 Clear Alarms

The Clear Alarms Screen clears the currently latched alarms.

4.4.9 SYSTEM (Menu)

The System Screens are listed below:

Screen Name Selections and Descriptions L0 L1 L2

4-28 TM086 - Rev. 4.1

Allows the user to choose whether the system is controlled from the Front Panel

Depending upon the setting, allows the user to have access to all system parameters, or operate at Levels 1 or 2

Allows the user to turn on or off the Debug

Allows the user to give precedence to symbol rate or data rate (which remains constant while the other varies). Auto

QAM128, QAM256}

Controls the maximum allowable

MM200 High-Speed Microwave Modem User Interfaces

ALL ALARMS

{No, Yes}

testing.

DATE

{YY/MM/DD}

Allows the user to enter the current date.

TIME

{HH:MM:SS}

Allows the user to enter the current time.

FRONT PANEL (menu)

and audible button depression.

REMOTE PORT (menu)

Sets line control for remote port.

TERMINAL (menu)

dumb terminal.

HW/FW CONFIG (menu)

Used for dispersive fading analyzer

LEVEL

TIMEOUT

KEY CLICK

{Low, Mid, High, Off}

Set the front panel backlight intensity level.

{0 – 99} Allows the user to enter the amount of time in seconds for the backlight to dim. Enter ‘0’ for no timeout.

{On, Off} Allows the user to choose between silent

REMOTE ADDR

REMOTE BAUD REMOTE LINE

TERM BAUD EMULATION

LOAD DEFAULT (menu)

PASSWORD

DEBUG MODE (menu)

DBG PASSWORD

SNMP DEFAULT (menu)

SNMP PASSWORD

Sets the multidrop address of the remote

port.

Sets the baud rate of the remote port.

{RS485, RS232}

Sets the baud rate of the terminal port. {VT 100, WYSE 50, ADDS VP}

Allows the system to emulate an ASCII

Allows the user to set the system configuration to default settings. This selection is password protected.

Password field for enabling the default system configuration overwrite.

Allows the user to enable the Debug Mode (this selection is password protected).

Password field for enabling the debug mode (factory use only).

Allows the user to set the SNMP Controls to the default settings.

Password field to set the SNMP defaults.

RW RW

TM086 - Rev. 4.1 4-29

User Interfaces MM200 High-Speed Microwave Modem

FW4459--

Firmware Version

LED TEST

{On, Off}

Illuminates all LEDs on front panel.

MUX DMX LOOP

{Normal, Mux Dmx Loop, Mux, Dmx

function.

RF LOOPBK

{NORMAL, LOOPBACK}

function.

CARRIER

{Normal, CW, Offset 1 Hz, 100 kHz, 3.5

output, or sweep test modes.

PRBS:

{None, 215, 215M, 223, 223M}

others are for Radyne Inc. configuration.

Remote Tap Enable

Set to 6 for normal operation.

FW4459--

Firmware Date

4.4.10 TEST (Menu)

The Test Screens are listed below:

Screen Name Selections and Des criptions L0 L1 L2

LVDS, Modem LVDS, Repeater}

Tests multiplexer and demultiplexer

Tests modulator and demodulator

MHz, Sweep Up, Sweep Dn}

Sets the carrier to normal pure carrier

Breaks the data path and inserts a pseudo random sequence into the modulators. ‘None’ is used for normal operation, the

REMOTE TAPS {NORMAL, 1:1, 1:10, 1:100} AGC BW {6}

4.5 Remote Port User Interface

The Remote Port of the MM200 allows for complete control and monitor functions via an RS-485 Serial Interface.

Control and status messages are conveyed between the MM200 and the subsidiary modems, and the host computer using packetized message blocks in accordance with a proprietary communications specification. This communication is handled by the Radyne Link Level Protocol (RLLP), which serves as a protocol ‘wrapper’ for the M&C data.

Complete information on monitor and control software is contained in the following sections.

4-30 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

4.5.1 Protocol Structure

When new features are added to Radyne Inc. equipment, the control parameters are appended to the end of the Non-Volatile Section of the Remote Communications Specification, and status of the features, if any, are added at the end of the Volatile Section. If a remote M&C queries two pieces of Radyne Inc. equipment with different revision software, they could respond with two different sized packets. The remote M&C MUST make use of the non-volatile count value to index to the start of the Volatile Section. If the remote M&C is not aware of the newly added features to the product, it should disregard the parameters at the end of the Non-Volatile Section and index to the start of the Volatile Section.

Before creating any software based on the information contained in this document, contact the Radyne Inc. Customer Service Department (602-437-

9620) to find out if the software revision for that piece of equipment is current and that no new features have been added since the release of this document.

The Communications Specification (COMMSPEC) defines the interaction of computer resident Monitor and Control software used in satellite earth station equipment such as modems, redundancy switches, multiplexers, and other ancillary support gear. Communication is bidirectional, and is normally established on one or more full-duplex multi-drop control buses that conform to EIA Standard RS-485.

Each piece of earth station equipment on a control bus has a unique physical address, which is assigned during station setup/configuration or prior to shipment. Valid decimal addresses on one control bus range from 032 through 255 for a total of up to 224 devices per bus. Address 255 of each control bus is usually reserved for the M&C computer.

4.5.2 Protocol Wrapper

The Radyne Inc. COMMSPEC is byte-oriented, with the Least Significant Bit (LSB) issued first. Each data byte is conveyed as mark/space information with two marks comprising the stop data. When the last byte of data is transmitted, a hold comprises one steady mark (the last stop bit). To begin or resume data transfer, a space substitutes this mark. This handling scheme is controlled by the hardware and is transparent to the user. A pictorial representation of the data and its surrounding overhead may be shown as follows:

The stop bits, S1 and S2, are each a mark. Data flow remains in a hold mode until S2 is replaced by a space. If S2 is followed by a space, it is considered a start bit for the data byte and not part of the actual data (B

The COMMSPEC developed for use with the Radyne Inc. Link Level Protocol (RLLP) organizes the actual monitor and control data within a shell, or "protocol wrapper", that surrounds the data.

- B7).

S2,

etc.

TM086 - Rev. 4.1 4-31

User Interfaces MM200 High-Speed Microwave Modem

FEh = 11111110b

The format and structure of the COMMSPEC message exchanges are described herein. Decimal numbers have no suffix; hexadecimal numbers end with a lower case h suffix and binary values have a lower case b suffix. Thus, 22 = 16h = 000010110b. The principal elements of a data frame, in order of occurrence, are summarized as follows:

<SYN> - the message format header character, or ASCII sync character, that defines the beginning of a message. The <SYN> character value is always 16h.

<BYTE COUNT> - the Byte Count is the number of bytes in the <DATA> field, ranging from 0 through TBD. This field is 2 bytes long for the MM200 protocol.

<SOURCE ID> - the Source Identifier defines the message originator’s multidrop address. Note that all nodes on a given control bus have a unique address that must be defined.

<DESTINATION ID> - The Destination Identifier specifies the multidrop address of the device(s) to which the message is sent.

<FRAME SEQUENCE NUMBER> - The FSN is a tag with a value from 0 through 255 that is sent with each message. It assures sequential information framing and correct equipment acknowledgment and data transfers.

<OPCODE> - The Operation Code field contains a number that identifies the message type associated with the data that follows it. Acknowledgment and error codes are returned in this field. This field is 2 Bytes for the MM200 protocol.

<...DATA...> - The Data field contains the binary, data bytes associated with the <OPCODE>. The number of data bytes in this field is indicated by the <BYTE COUNT> value.

<CHECKSUM> - The checksum is the modulo 256 sum of all preceding message bytes, excluding the <SYN> character. The checksum determines the presence or absence of errors within the message. In a message block with the following parameters, the checksum is computed as shown below in Table 4-4.

Table 4-4. Checksum Calculation Example

BYTE FIELD DATA CONTENT RUNNING CHECKSUM

<BYTE COUNT> (Byte 1) 00h = 00000000b 00000000b <BYTE COUNT> (Byte 2) 02h = 00000010b 00000010b

<SOURCEID> F0h = 11110000b 11110010b

<DESTINATION ID> 2Ah = 00101010b 00011100b

<FSN> 09h = 00001001b 00100101b <OPCODE> (Byte 1) 00h = 00000000b 00101000b <OPCODE> (Byte 2) 03h = 00000011b 00101000b

<DATA> (Byte 1) DFh = 11011111b 00000111b <DATA> (Byte 2)

00000101b

Thus, the checksum is 00000101b; which is 05h or 5 decimal. Alternative methods of calculating the checksum for the same message frame are:

4-32 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem User Interfaces

00h + 02h + F0h + 2Ah + 09h + 00h + 03h + DFh + FEh = 305h. Since the only concern is the modulo 256 (modulo 100h) equivalent (values that can be

represented by a single 8-bit byte), the checksum is 05h. For a decimal checksum calculation, the equivalent values for each information field are:

0 + 2 + 240 + 42 + 9 + 0 + 3 + 223 + 254 = 773; 773/256 = 3 with a remainder of 5. This remainder is the checksum for the frame. 5 (decimal) = 05h = 0101b = <CHECKSUM>

4.5.3 Frame Description and Bus Handshaking

In a Monitor and Control environment, every message frame on a control bus port executes as a packet in a loop beginning with a wait-for-SYN-character mode. The remaining message format header information is then loaded, either by the M&C computer or by a subordinate piece of equipment requesting access to the bus. Data is processed in accordance with the OPCODE, and the checksum for the frame is calculated. If the anticipated checksum does not match then the wait-for-SYN mode goes back into effect. If the OPCODE resides within a command message, it defines the class of action that denotes an instruction that is specific to the device type, and is a prefix to the DATA field if data is required. If the OPCODE resides within a query message packet, then it defines the query code, and can serve as a prefix to query code DATA.

The Frame Sequence Number (FSN) is included in every message packet, and increments sequentially. When the M & C computer or bus-linked equipment initiates a message, it assigns the FSN as a tag for error control and handshaking. A different FSN is produced for each new message from the FSN originator to a specific device on the control bus. If a command packet is sent and not received at its intended destination, then an appropriate response message is not received by the packet originator. The original command packet is then re-transmitted with the same FSN. If the repeated message is received correctly at this point, it is considered a new message and is executed and acknowledged as such.

If the command packet is received at its intended destination but the response message (acknowledgment) is lost, then the message originator (usually the M&C computer) re-transmits the original command packet with the same FSN. The destination device detects the same FSN and recognizes that the message is a duplicate, so the associated commands within the packet are not executed a second time. However, the response packet is again sent back to the source as an acknowledgment in order to preclude undesired multiple executions of the same command.

To reiterate, valid equipment responses to a message require the FSN tag in the command packet. This serves as part of the handshake/acknowledge routine. If a valid response message is absent, then the command is re-transmitted with the same FSN. For a repeat of the same command involving iterative processes (such as increasing or decreasing transmit power level), the FSN is incremented after each message packet. When the FSN value reaches 255, it overflows and begins again at zero.

The full handshake/acknowledgment involves a reversal of source and destination ID codes in the next message frame, followed by a response code in the <OPCODE> field of the message packet from the equipment under control.

TM086 - Rev. 4.1 4-33

User Interfaces MM200 High-Speed Microwave Modem

4.5.4 Global Response Operational Codes

In acknowledgment response packets, the operational code <OPCODE> field of the message packet is set to 0 by the receiving devices when the message intended for the device is evaluated as valid. The device that receives the valid message then exchanges the <SOURCE ID> with the <DESTINATION ID>, sets the <OPCODE> to zero in order to indicate that a good message was received, and returns the packet to the originator. This "GOOD MESSAGE" Opcode is one of nine global responses. Global response Opcodes are common responses, issued to the M&C computer or to another device, that can originate from and are interpreted by all Radyne Inc. equipment in the same manner. These are summarized as follows all Opcode values are expressed in decimal form:

Table 4-5. Response OPCODES

RESPONSE OPCODE DESCRIPTION OPCODE

Good Message 000d = 0x0000 Bad Parameter 255d = 0x00FF

Bad Opcode 254d = 0x00FE

Bad Checksum 253d = 0x00FD

Command Not Allowed in LOCAL Mode 252d = 0x00FC

Command Not Allowed in AUTO Mode 251d = 0x00FB

Bad Destination 250d = 0x00FA

Unable to Process Command 249d = 0x00F9

Packet Too Long 248d = 0x00F8

The following response error codes are specific to the MM200:

MM200 Response Error Code Descriptions OPCODE

REMOTE_GOOD 0x0000

REMOTE_SIZE_ERROR 0x0201

REMOTE_UNKNOWN_ERROR 0x0202

REMOTE_CONTROL_ERROR 0x0203

REMOTE_PARAMETER_ERROR 0x0204

REMOTE_LASTRATE_ERROR 0x0205

REMOTE_SYMBOL_LO_ERROR 0x0206

REMOTE_SYMBOL_HI_ERROR 0x0207

REMOTE_DATA_LO_ERROR 0x0208

REMOTE_DATA_HI_ERROR 0x0209

REMOTE_FRAMING_ERROR 0x020A

REMOTE_MODULATION_ERROR 0x020B

REMOTE_DEMODULATION_ERROR 0x020C

REMOTE_CHANNEL_ERROR 0x0210

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REMOTE_PID_ERROR 0x0211

REMOTE_DATA_RATE_ERROR 0x0212

REMOTE_INTERFACETYPE_ERROR 0x0213

REMOTE_SUBTYPE_ERROR 0x0214

REMOTE_CLOCKSOURCE_ERROR 0x0215

REMOTE_CLOCKFREQUENCY_ERROR 0x0216

REMOTE_FRAMING_ERROR 0x0217

REMOTE_VOLUME_ERROR 0x0218

REMOTE_CLOCKPOLARITY_ERROR 0x0219

REMOTE_DATAINVERTERROR 0x021A

REMOTE_BBLOOPACK_ERROR 0x021B

REMOTE_TERRLOOPBACK_ERROR 0x021C

REMOTE_PRBS_ERROR 0x021D

REMOTE-INTERFACEENABLE_ERROR 0x021E

REMOTE_FREQUENCY_ERROR 0x021F REMOTE_FREQUENCY1_ERROR 0x0220 REMOTE_FREQUENCY2_ERROR 0x0221 REMOTE_FREQUENCY3_ERROR 0x0222 REMOTE_FREQUENCY4_ERROR 0x0223

REMOTE_FREQUENCYPLAN_ERROR 0x0224

REMOTE_USERMODE_ERROR 0x0225 REMOTE_BANDWIDTH_ERROR 0x0226 REMOTE_UTILIZATION_ERROR 0x0227

REMOTE_CHANNELLOCKED_ERROR 0x0228

REMOTE_CHANNELNOTLOCKED_ERROR 0x0229

REMOTE_NOINTERFACECARD_ERROR 0x022A

REMOTE_ACQUISITIONCONTROL_ERROR 0x022B

REMOTE_ACQUISITIONBANDWIDTH_ERROR 0x022C

REMOTE_ACQUISITIONDELAY_ERROR 0x022D

REMOTE_ACQUISITIONSTEP_ERROR 0x022E

REMOTE_TRACKINGSTEP_ERROR 0x022F

REMOTE_REAQUISITIONDELAY_ERROR 0x0230

REMOTE_CAPABILITY_ERROR 0x0231

REMOTE_RANGE_ERROR 0x0232

REMOTE_LORANGE_ERROR 0x0233

REMOTE_HIRANGE_ERROR 0x0234

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REMOTE_SYMBOLRATE_PERCHANNEL_LO_ERROR 0x0235

REMOTE_SYMBOLRATE_PERCHANNEL_HI_ERROR 0x0236

REMOTE_NOTCOMPATIBLE_ERROR 0x0237

REMOTE_MM200_IN_REPEATER_MODE_ERROR 0x0238

REMOTE_DIVERSITY_ERROR 0x023A REMOTE_CLEARBER_ERROR 0x023B

4.5.5 Collision Avoidance

When properly implemented, the physical and logical devices and ID addressing scheme of the COMMSPEC normally precludes message packet contention on the control bus. The importance of designating unique IDs for each device during station configuration cannot be overemphasized. One pitfall, which is often overlooked, concerns multi - drop override IDs. All too often, multiple devices of the same type are assigned in a direct - linked "single - thread" configuration accessible to the M&C computer directly. For example, if two MM200 Modems with different addresses DESTINATION IDs are linked to the same control bus at the same hierarchical level, both will attempt to respond to the M&C computer when the computer generates a multi - drop override ID of 1. If their actual setup parameters, status, or internal timing differs, they will both attempt to respond to the override simultaneously with different information, or asynchronously in their respective message packets and response packets, causing a collision on the serial control bus.

To preclude control bus data contention, different IDs must always be assigned to the equipment. If two or more devices are configured for direct - linked operation, then the M&C computer and all other devices configured in the same manner must be programmed to inhibit broadcast of the corresponding multi - drop override ID.

The multi - drop override ID is always accepted by devices of the same type on a common control bus, independent of the actual DESTINATION ID. These override IDs with the exception of “BROADCAST” are responded to by all directly linked devices of the same type causing contention on the bus. The “BROADCAST” ID, on the other hand, is accepted by all equipment but none of them returns a response packet to the remote M&C.

The following multi - drop override IDs are device - type specific, with the exception of "BROADCAST". These are summarized below with ID values expressed in decimal notation:

Table 4-6. Broadcast IDs

Directly - Addressed Equipment Multi - Drop Override ID

Broadcast all directly - linked devices 00 DMD - 3000/4000, 4500 or 5000 Mod Section, DMD15 01 DMD - 3000/4000, 4500 or 5000 Demod Section, DMD15 02 RCU - 340 1:1 Switch 03 RCS - 780 1:N Switch 04 RMUX - 340 Cross - Connect Multiplexer 05 CDS - 780 Clock Distribution System 06 SOM - 340 Second Order Multiplexer 07 DMD - 4500/5000 Modulator Section 08

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DMD - 4500/5000 Demodulator Section 09 RCU - 5000 M:N Switch 10 DMD15 Modulator 20 DMD15 Demodulator 21 DMD15 Modem 22 DVB3030 Video Modulator, DM240 23 Reserved for future equipment types 24 – 31

Note that multi - drop override ID 01 can be used interchangeably to broadcast a message to a DMD - 3000/4000 modem, a DMD - 4500/5000, a DMD15 modem, or a DVB3030. Radyne Inc. Corp. recommends that the multi - drop override IDs be issued only during system configuration as a bus test tool by experienced programmers, and that they not be included in run - time software. It is also advantageous to consider the use of multiple bus systems where warranted by a moderate to large equipment complement.

Therefore, if a DMD15 Modulator is queried for its equipment type identifier, it will return a "20" and DMD15 Demodulator will return a "21". A DMD15 Modem will also return an "22". A DVB3030 Video Modulator will return a “23.”

4.5.6 Software Compatibility

The COMMSPEC, operating in conjunction within the RLLP shell, provides for full forward and backward software compatibility independent of the software version in use. New features are appended to the end of the DATA field without OPCODE changes. Older software simply discards the data as extraneous information without functional impairment for backward compatibility.

If new device-resident or M&C software receives a message related to an old software version, new information and processes are not damaged or affected by the omission of data.

The implementation of forward and backward software compatibility often, but not always, requires the addition of new Opcodes. Each new function requires a new Opcode assignment if forward and backward compatibility cannot be attained by other means.

When Radyne Inc. equipment is queried for bulk information (Query Mod, Query Demod, etc.) it responds by sending back two blocks of data; a Non-Volatile Section (parameters that can be modified by the user) and a Volatile Section (status information). It also returns a count value that indicates the size of the Non-Volatile Section. This count is used by M&C developers to index into the start of the Volatile Section.

When new features are added to Radyne Inc. equipment, the control parameters are appended to the end of the Non-Volatile Section, and status of the features, if any, are added at the end of the Volatile Section. If a remote M&C queries two pieces of Radyne Inc. equipment with different revision software, they may respond with two different sized packets. The remote M&C MUST make use of the non-volatile count value to index to the start of the Volatile Section. If the remote M&C is not aware of the newly added features to the Radyne Inc. product, it should disregard the parameters at the end of the Non-Volatile Section and index to the start of the Volatile Section.

If packets are handled in this fashion, there will also be backward-compatibility between Radyne Inc. equipment and M&C systems. Remote M&C systems need not be modified every time a feature is added unless the user needs access to that feature.

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4.5.7 RLLP Summary

The RLLP is a simple send-and-wait protocol that automatically re-transmits a packet when an error is detected, or when an acknowledgment (response) packet is absent.

During transmission, the protocol wrapper surrounds the actual data to form information packets. Each transmitted packet is subject to time out and frame sequence control parameters, after which the packet sender waits for the receiver to convey its response. Once a receiver verifies that a packet sent to it is in the correct sequence relative to the previously received packet, it computes a local checksum on all information within the packet excluding the <SYN> character and the <CHECKSUM> fields. If this checksum matches the packet <CHECKSUM>, the receiver processes the packet and responds to the packet sender with a valid response (acknowledgment) packet.

The response packet is therefore either an acknowledgment that the message was received correctly. If the sender receives a valid acknowledgment (response) packet from the receiver, the <FSN> increments and the next packet is transmitted as required by the sender.

If an acknowledgment (response) packet is lost, corrupted, or not issued due to an error and is thereby not returned to the sender, the sender re-transmits the original information packet; but with the same <FSN>. When the intended receiver detects a duplicate packet, the packet is acknowledged with a response packet and internally discarded to preclude undesired repetitive executions. If the M&C computer sends a command packet and the corresponding response packet is lost due to a system or internal error, the computer times out and re-transmits the same command packet with the same <FSN> to the same receiver and waits once again for an acknowledgment.

Refer to Appendix A for RLLP.

4.6 Simple Network Management Protocol (SNMP)

Simple Network Management Protocol (SNMP), as its name suggests, is a relatively simple protocol by which management information for a network device may be inspected and/or altered by remote administrators.

4.7 The Management Information Base (MIB)

Management objects are defined in the Management Information Base (MIB), which uses a hierarchical naming scheme. Within this scheme, each object is identified by an Object Identifier (OID), a sequence of non-negative integers that uniquely describes the path taken through the hierarchical structure.

MIB objects may then be specified either from the Root (which has no designator), or alternatively from anywhere within the hierarchical structure.

For example: 1.3.6.1.4.1.2591.4 is equivalent to {iso(1). org(3). dod(6). internet(1). private(4). enterprises(1). Radyne(2591). RCS10L(4)} (See Figure 1).

In general, we are mainly concerned with just two groups that reside in the internet subtree, namely the mgmt, and private groups. For completeness however, the four major groups are discussed below:

4.8 Directory {internet 1} 1.3.6.1.1

This area was reserved to describe how the OSI directory structure may be used in the Internet. To date this has not been implemented and therefore is of little interest to us.

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4.9 Mgmt {internet 2} 1.3.6.1.2

This area was reserved to describe objects in the standard MIB. As RFCs defining new groups are ratified, the Internet Assigned Numbers Authority (IANA) assigns new group IDs.

4.10 Experimental {internet 3} 1.3.6.1.3

This subtree provides an area where experimentation is carried out. Only those organizations directly involved in the experiment have any interest in this subtree.

4.11 Private {internet 4} 1.3.6.1.4

This is possible the most important area of the MIB, since it is within this subtree that vendors place objects specific to their particular devices. Beneath the private branch, there is a subtree called enterprises, beneath which each vendor may define its own structure. Vendors are assigned Private Enterprise Numbers (PENs) that uniquely identify them. They may then place all objects specific to their devices in this tree, provided of course that the object conforms to the format defined by SMI. Radyne Inc. ’s Private Enterprise Number is 2591. Other products are added to Radyne Inc. ’s subtree as they become remotely manageable through SNMP.

Figure 1. Object Identifiers in the Management Information Base (Sheet 1 of 2)

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Figure 1. Object Identifiers in the Management Informa tion Base (Sheet 2 of 2)

Refer to Appendix B for MIB listing.

4.12 Terminal Port User Interface

The Terminal Port of the MM200 allows for complete control and monitoring of all MM200 parameters and functions via an RS-232 Serial Interface. Terminal Mode’ can be entered from the front panel by selecting ‘System’ and then ‘Control Mode’ followed by ‘Terminal.’ The default settings for the terminal are as follows:

19,200 Baud; 8 Data bits; 1 stop bit; No parity The baud rate can be changed at the front panel by using the System>Baud Rate Menu.

The new baud rate does not take effect until power to the unit has been shut down and turned back on again.

The Terminal Control Mode is menu-driven and the allowable values for each item number will be shown. To change an item, type in its number followed by <ENTER>. If the parameter to be changed requires a numeric value, enter the number followed by <ENTER> If the parameter is non-numeric, press <SPACE> to cycle through the list of available entries. Note that the items that do not have ID numbers are Status only and cannot be changed.

4.13 Modem Configuration

4.14 Connecting the Terminal

1. Connect the computer to the MM200 Terminal Connector (J2) on the rear of the unit using the RS-232 Cable (Figure 1).

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Figure 1.

1. Verify that your emulation software is set to the following: VT100

9600 baud 8 data bits no parity 1 stop bit

Modify the MM200 selection, if necessary, to match the settings (the Front Panel ‘SYSTEM’ Sub-Menu contains all the Terminal Emulation Controls).

2 If the system is set up properly and the terminal fails to come up, verify that the Terminal

Cable (CA/3448-6) is attached properly from the Back Plate (J2) to the Header (J9) on the Main M&C Card (AS/4458).

3. Switch S3 settings should be set as follows: SW1: On

SW2: On SW3: Off SW4: Off

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Enter Selection Number:

4.15 SNMP Option

1. From the Main Menu, select ‘20’ for Network Configuration. Verify that Selection 30, SNMP Option is enabled. The MM200 SNMP Option is enabled at the factory if purchased by the user. Please contact the Radyne Inc. Customer Service Department if the SNMP feature is not available.

4.16 Network Configura ti on

4.17 Terminal Screens

1. The Network Configuration Screen is accessed from the MM200 Terminal top-level menu, selection #20. There are two available setup screens: SNMP and Security. Once logged on, the user can toggle back and forth using Selection Number 12, ‘SNMP/Security’.

SNMP Controls Screen:

1.Main Menu

2.Control Mode : TERMINAL 12.SNMP/Security

3.Term E m ulate : VT 100 13.Logon

4.Term B aud : 9600 14.Logoff

SETUP STATUS

5.TrapType : VERSION2 Logon User : Oper-md5

6.PrimaryTrapHost : 192.168.0.25 Context Engine ID : 80000A1F01AC1264B0

7.SndaryTrapHost : 192.168.0.26 Engine Status : NORMAL

8.Trace Mode : LEVEL 5

9.Community : public

--------------------------------------------- SNMP CONTROLS ----------------------------------------

30.SNMP Option : ENABLE

31.Boot Mode : NONVOL

32.Modem Et hA ddr : 0010650D03E8

33.Modem I PA ddr : 192.168.0.243

34.Server EthAddr : 000000000000

35.Server IPAddr : 192.168.0.50

37.Router IPAddr : 192.168.0.254

38.IPAddressMask : 255.255.0.0

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Enter Selection Number:

Security Controls Screen:

1.Main Menu

2.Control Mode : TERMINAL 12.SNMP/Security

3.Term E m ulate : VT 100 13.Logon

4.Term B aud : 9600 14.Logoff

SETUP STATUS

5.TrapType : VERSION2 Logon User : Oper-md5

6.PrimaryTrapHost : 192.168.0.25 Context Engine ID : 80000A1F01AC1264B0

7.SndaryTrapHost : 192.168.0.26 Engine Status : NORMAL

8.Trace Mode : LEVEL 5

9.Community : public

------------------------------------------SECURITY CONTROLS----------------------------------------

10.SNMP V1&2 Access View: adminVIEWadminACCESS

11.Key Generation Mode : STORE

12.Change Logon Password

13.Change Authentication Password

14.Change Privacy Password

2. The SNMP Configuration can be monitored and controlled via a full screen presentation of current settings and status. The <Esc> Key redraws the entire screen and aborts input any time. The Spacebar refreshes the status area and is used to scroll through selection when in user input mode.

3. To modify an item, the user simply presses its terminal selection followed by <Enter>. The modem responds by presenting the options available and requesting input. If the input is multiple choices, the user is prompted to use the Spacebar to scroll to the desired selection and then press <Enter>. An input can be aborted at any time by pressing <Esc>. Invalid input keys cause an error message to be displayed on the terminal. Some input or display status only appears when the user has the right access levels.

4.18 Logging on and Passwords

There are several available logon users each setup with a default password. The user must be logged on in order to view or change some settings. There are 3 levels of access rights in the MM200. These are:

Initial Access: The default when no user is logged on. Viewer Access: Allows its user to modify its own logon and authentication

passwords.

Operator Access: All other SNMP and security selections can only be

accessed.

Listed in the table below are the available user names and corresponding default passwords:

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Security User Logon Password Authentication

Privacy Password

Password

Initial

Viewer Viewer Viewer

Oper–md5 Oper Oper Oper

Viewer–sha Viewer Viewer

Oper-sha Oper Oper Oper

Note: All entries are case sensitive

4.19 Exiting SNMP Configuration

1. Select the Main Menu by pressing ‘1’ followed by <Enter>, to go back to the MM200 toplevel menu screen.

4.20 Logging On

1. The user must be logged on to have access to SNMP Features. To log on the SNMP configuration, press ‘13’ followed by <Enter> to open the Logon Dialog Box.

+------------------| Logon |------------------+ | | | 1.User ID : | | 2.Password : | | | | 3.OK 4.CANCEL | | | +-----------------------------------------------+

2. In the User ID Text Box, enter “Oper-md5” (case sensitive).

3. In the Password Text Box, enter “Oper” (case sensitive).

4. Select OK

4.21 Changing the Logon Password

To change the password, logged on so that the “SNMP/Security” selection appears. Once logged on, proceed to the “SECURITY CONTROLS” Menu Selections by pressing ‘12’. Press ‘12’ again followed by <Enter> to open the Change Password dialog.

+---------| Change Password |-----------+ | | | 1.Old Password : | | 2.New Password : | | 3.Re-enter New Password : | | | | 4.OK 5.CANCEL | | | +-----------------------------------------------+

1. In the Old Password Text Box, enter “Oper” (case sensitive).

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2. In the New Password Text Box, enter the new password (case sensitive, only *’s appear for security).

3. Re-enter the new password to verify the desired setting.

4. Select OK

4.22 Logging Off

1. To log off the SNMP Configuration, press ‘14’ followed by <Enter>. The following confirmation message will be displayed to avoid inadvertent exits:

You will be logged off. Are you sure? (Y/N):

4.23 Changing Your Authentication Password

1. To change your authentication password, you must be logged on in order for the “SNMP/Security” selection to appear. Once logged on, proceed to the “SECURITY CONTROLS” Menu Selections by pressing ‘12’, then ‘13’, followed by <Enter> to open the Change Password Dialog.

+----------| Change Password |----------+ | | | 1.Old Password : | | 2.New Password : | | 3.Re-enter New Password : | | | | 4.OK 5.CANCEL | | | +-----------------------------------------------+

2. In the Old Password Text Box, enter “Oper” (case sensitive).

3. In the New Password Text Box, enter the new password (case sensitive, only *’s appear for security).

4. Re-enter the new password to verify desired setting.

5. Select OK

4.24 Changing Your Privacy Password

To change your privacy password, you must be logged on as either Oper-md5 or Oper-sha (Operator). Once logged on, proceed to the “SECURITY CONTROLS” menu selections by pressing 12. Press 14 followed by <Enter> to open the Change Password dialog.

+----------| Change Password |----------+ | | | 1.Old Password : | | 2.New Password : | | 3.Re-enter New Password : | | | | 4.OK 5.CANCEL | | | +-----------------------------------------------+

1. In the Old Password Text Box, enter “Oper” (case sensitive).

2. In the New Password Text Box, enter the new password (case sensitive, only *’s appear for security).

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3. Re-enter the new password to verify desired setting.

4. Select OK

4.25 Modem MM200 High-Speed Microwave Modem Ethernet Address

1. The Modem MM200 High-Speed Microwave Modem Ethernet Address is configured at the factory. It is a unique Radyne Inc. equipment identifier.

Example: 0010650903EB

Do not modify the Ethernet Address. Major problems may result if changed.

4.26 Modem IP Address

1. Select 33, ‘Modem IP Addr’. Enter the Modem Internet Address in dot notation and press <Enter>. Please consult your network administrator for valid addresses.

Example - 192.168.0.35

2. The IP Address that is selected will be used for the Ethernet Test that follows.

4.27 Server Ethernet Address

This section refers to the boot host.

1. Select 34, ‘Server Eth Addr’. Enter the Server 12 Digit Ethernet Address and press <Enter>. Zero out this address if not known at this time. The system will resolve it dynamically at run time.

Example: 0FD0640203ED or 000000000000

4.28 Server IP Address

This section refers to the Host that will be used to optionally boot the MM200 on power-up. The host should be acceptable to the transport layer. In other words, the transport layer needs to be able to open a connection to the entity specified by the server IP Address field.

1. Select 35, ‘Server IP Addr’. Enter the Server Internet Address in dot notation and press <Enter>. Please consult your network administrator for valid addresses.

Example: 192.168.0.50

2. The IP Address that is selected will be used for the Ethernet Test that follows.

4.29 Server Host Name

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This section refers to the Boot Host.

1. Select 36, ‘Server Host Name’. Enter the Server Host Name and press <Enter>. This is a descriptive entry only.

Example: SERVER

4.30 Router IP Address

Select 37, ‘Router IP Addr’. Enter the router Internet Address in dot notation and press <Enter>. Please consult your network administrator for valid addresses.

Example: 192.168.0.254

4.31 IP Address Mask

In the mask (more clearly seen in the binary format), binary 1s indicate the position of the network and subnet portion of the IP Address while binary 0s identify bits that represent the individual interfaces. To recognize a subnet, each system in the subnet must have the same subnet mask. Please consult your network administrator for a valid address class mask.

1. Select 38, ‘IP Address Mask’. Enter the IP Address mask in dot notation and press <Enter>.

Example: 255.255.0.0

4.32 Boot Mode (Optional)

1. Select ‘31’ from the Controls Menu and press <Enter>. Scroll through the various selections to ‘NVBOOT’ and press <Enter>. The above settings will be enabled the next time the system is rebooted. If a bootp server is available, the MM200 can be remotely configured by selecting bootp mode. This option is currently not available.

4.33 Community

Each managed station controls its own local MIB and must be able to control the use of that MIB by a number of management stations. This relates to security concerns. A managed MIB such as the MM200 needs to protect itself from unwanted and unauthorized access. SNMP, as defined in RFC 1157, provides only a limited capability for such security, namely the concept of a community. An SNMP Community is the relationship between an SNMP Agent and Management Stations.

1. To set the community string on the MM200, select 9, ‘Community’. Enter the desired community name and press <Enter>.

Example: “public”

4.34 Trap Type and Trap Hosts

Traps enable the modem to notify the management station of significant events such as alarms. Version1 and version2 Traps are supported at this time. These are Operator selectable using Terminal Command Number 5. The messages are sent to specific pre-defined hosts. The Primary and Secondary Trap Hosts IP Addresses are setup using Terminal Commands 6 and 7. Each host should be acceptable to the transport layer. In other words, the transport layer needs to be able to open a connection to the entities specified by the trap host fields.

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4.35 Trace Mode

1. For debugging purposes, a trace mode is specified by the Operator users for various diagnostic levels.

4.36 SNMP V1 & 2 Access View

The default access rights for Version 1 and 2 SNMP users are minimal. They are limited to a system view, and a description of the MM200 System and Contact Information. For additional information go to View-Based Access Control Section). To accommodate older systems, an Operator user may modify these access rights to allow full or partial read/write access. SNMP Version 1 and 2 does not use any security measures, therefore users should be extra careful when changing access rights.

4.37 Key Generation Mode

The password localization algorithm is intensive enough that the Motorola 68332 Embedded Processor cannot handle the process in a timely manner. This selection allows the Operator user to optionally store localized keys in non-volatile memory. These keys correspond to a set of passwords and Modem IP Address. If either changes, the SNMP agent automatically recalculates the new keys and stores them in non-volatile memory (only if the Key Generation Mode is set to ‘STORE’).

4.38 Context Engine ID

“contextEngineID” is the unique identifier of the MM200 SNMP Engine that provides services for sending and receiving messages, authenticating and encrypting messages, and controlling access to managed objects.

1. The Context Engine ID, 80000A1F01AC1264B0, is formatted as follows: a. The first 4 bytes are the Radyne Inc. Private Enterprise Number (2591). b. The very first bit is set to 1, for example: 80000A1F (H). c. The fifth byte indicates how the 6

means it’s an IPv4 Address.

d. The last 4 bytes are the IP Address 172.18.100.176 (AC1264B0).

and remaining bytes are formatted. A ‘1’

4.39 View-Based Access Control

SNMPv3 defines a method of access control known as the View-based Access Control Model (VACM). It is defined as a means to restrict access to particular subsets of variables based on the identity of the manager and the security level used in the request.

A view is a group of MIB variables on the agent. The agent defines a view for each user based on the user identity (securityName) and security level. Following are the major views:

System view: Access to system description MIB-II view: Access to the standard MIB-II information

Device view: Access to the device private information World view: Access to every managed object in the MIB

Following are the available access groups:

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Group Context/Community Security Level Read Access Write Access

NULL mib2 NoAuth/noPriv System view NONE Viewer mib2 Auth/noPriv MIB-II view NONE Viewer Dev Auth/Priv Device view NONE

Oper mib2 Auth/noPriv MIB-II view MIB-II view Oper Dev Auth/Priv Device view Device view

The NULL Security Name is for backward compatibility with SNMP Version 1 and 2 management stations (security names are not defined for earlier protocols). In this case, the contextName in each view may refer to either a contextName or a communityName. The securityLevel would then be noAuth/noPriv.

4.40 Verification

4.41 Connect the Ethernet Cable

1. Connect the computer to the MM200 Ethernet port using the RJ-45 to RJ-45 10BaseT Cables via a hub as shown below.

Figure 2.

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4.42 Ping Program

1. PING is an application that uses the ICMP protocol to report if a host is responding. To check whether the MM200 modem is reachable, use the PING program installed on your computer along with the modem IP Address set in section 3.2.3.

Example: ping 192.168.0.35

2. If everything is functioning correctly, replies from the modem will appear on the computer screen along with the time it took to respond. If unsuccessful, verify the following:

a. The cables are secured. b. The Link Light is illuminated. c. The IP Address that is used matches the Modem’s IP Address. d. The Server and Modem are on the same subnet.

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MM200 High-Speed Microwave Modem User Interfaces

4.43 SNMP Test

1. Once it is determined that the MM200 is reachable, compile the custom Management Information Base (MIB) for use by the Network Management Station (NMS). The MIB uses a hierarchical naming scheme. Each managed object in the MM200 is identified by an Object Identifier (OID), a sequence of non-negative integers that uniquely describes the path taken through the hierarchical structure.

2. Using the modem IP Address, perform a Walk of the MIB to retrieve all the MIB objects managed in the MM200.

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User Interfaces MM200 High-Speed Microwave Modem

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MM200 High-Speed Microwave Modem Electrical Interfaces

Electrical Interfaces

5.0 MM200 Connections

All MM200 connections are made to labeled connectors, and to any optional interfaces installed in slots located on the rear of the unit. Any connection interfacing to the MM200 must be the appropriate mating connector. Refer to Figure 5-1 and Figures 5-3 through 5-6 for connector locations.

Figure 5-1. MM200 Rear Panel Con n ector and Optional Interface Slots

5.1 Power

5.1.1 AC Power

The unit is powered from a 100 – 240 VAC, 50 – 60 Hz source. Maximum unit power consumption is 110 W. The switch turns power on and off to the unit. A chassis ground connection can be made at the #10-32 threaded stud located to the lower right of the AC Power Connector.

5.1.2 DC Power

The chassis can be factory optioned for 48 or 24 VDC prime power.

Power Requirements:

48 VDC Option: 3 A maximum, 36 - 75 VDC 24 VDC Option 6 A maximum, 19 - 36 VDC

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Electrical Interfaces MM200 High-Speed Microwave Modem

Refer to Table 5-1 below for pinouts for optional DC Power plug.

Table 5-1. DC Power

A - DC Input B Ground C + DC Input

5.2 Alarm Port

The Alarm Connector (J1) is used to indicate the fault condition of the modulator to external equipment. This male 9-Pin D-Sub Connector provides connection to two form-c relays and an open collector output for mod and demod. The user can distinguish between modulator and demodulator alarms with the relays. All minor alarms are ignored. A major or common fault will activate the alarm. Refer to Table 5-2 for connector pinouts. Table 5-3 below describes the alarm indications.

Table 5-2. Alarm Connector J6 Pin Assignment

Pin No. Connection

Mod (Open Collector) 2 Mod (Normally Closed) 3 Demod (Open Collector) 4 Demod (Normally Closed) 5 Ground 6 Mod C 7 Mod (Normally Open) 8 Demod C 9 Demod (Normally Open)

Table 5-3. Alarm Indications

Alarm Pin Description

None 6 – 7 shorted, 8 – 9 shorted

Mod 6 – 2 shorted, 5 – 1 driven high

Demod 8 – 4 shorted, 5 – 3 driven high

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MM200 High-Speed Microwave Modem Electrical Interfaces

’ Female

5.3 Terminal Port (I/O)

The Terminal Port (J2) can be used for the monitor & control functions of the unit. The physical interface is a female 9-Pin D-Sub Connector. This bi-directional port complies with RS-232 Electrical Specifications. The pinouts are listed in Table 5-4a and 5-4b. S3 can be found on the M&C Card by removing the top cover.

Table 5-4a. J2 - RS-232 Terminal Port - 9-Pin ‘D’ Female

S3 – Switch 1 & 2 Off, Switch 3 & 4 On

Pin No. Signal Name Description Direction

2 TxD Transmit Data Output 3 RxD Receive Data Input 5 GND Ground ---

Table 5-4b. J2 - RS-232 Terminal Port - 9-Pin ‘D

S3 – Switch 1 & 2 On, Switch 3 & 4 Off

Pin No. Signal Name Description Direction

2 RxD Receive Data Input 3 TxD Transmit Data Output 5 GND Ground ---

5.4 Remote Port (I/O)

The Remote Port (J3) can be used for the monitor & control functions of the unit. The physical interface is a female 9-Pin D-Sub Connector. This bi-directional port complies with RS-485 Electrical Specifications. Pin-outs are listed in Table 5-5.

Table 5-5. J3 - RS-485 Remote Control - 9-Pin ‘D’ Female

Pin No. Signal Description Direction

1 Tx (B) Transmit Data (+) Output 5 GND Ground 6 Tx (A) Transmit Data (-) Output 8 Rx (B) Receive Data (+) Input 9 Rx (A) Receive Data (-) Input

TM086 - Rev. 4.1 5-3

Electrical Interfaces MM200 High-Speed Microwave Modem

9-Pin ‘D-Sub’

15-Pin HD

Female

‘D-Sub’ Male

5.4.1 Remote Port Cabling for a Sta ndard Computer RS-232 COM Port

A cable with the following pin-outs is used for Remote Port Communications.

Remote Port Cabling for a Standard

Computer RS-232 COM Port - 9-Pin ‘D’ Male

Computer

End Pin No.

2 Tx (B) 6 3 Rx (B) 9 5 GND 5

If the MM200 does not have the option of changing from RS-232 to RS-422, an RS-232 to RS-422 Interface Converter is required. The RS-422 end is attached to the cable, the other is attached to the standard COM Port of the computer. A suggested converter is P/N K422-99 available from KK Systems, Ltd. (www.kksystems.com).

If communication is required to a Remote Port via an Overhead Interface, the following cabling is required (refer to Figure 5-2):

Signal Modem End

Pin No.

Figure 5-2. Standard Com p u ter Cabling Block Dia g ram

From the Computer Remote Ca b le

to the Overhead (Cable A)

5-4 TM086 - Rev. 4.1

1 -TX 6 -TX 5 GND 2 GND

MM200 High-Speed Microwave Modem Electrical Interfaces

+RX CLK to

RX CLK to

9-Pin ‘D-Sub’

15-Pin HD

Female

‘D-Sub’ Male

+RX CLK to

RX CLK to

6 +TX 1 +TX 8 -RX 13 -RX 9 +TX 3 +TX

7 to

+TX CLK

8 to

From the Overhead to the Remote

Port of the Remote Modem (Cable B)

-TX CLK

6 -TX 6 -TX 5 GND 2 GND 1 +TX 1 +TX 9 -RX 13 -RX 8 +TX 3 +TX

7 to

8 to

+TX CLK

-TX CLK

5.5 Ethernet Interface (I/O)

The Ethernet Interface (J4) can be used for the monitor & control functions of the unit. The physical interface is a standard female RJ-45 Connector.

5.6 TX RF Port (Output)

The TX RF Port (J5) is used to transmit RF signals. The physical interface is a Female 750 Ω

BNC Connector and has an output of 50 – 90 MHz IF.

5.7 RX RF Port (Input)

The RX RF Port (J6) is used to receive RF signals. The physical interface is a Female 750 Ω BNC Connector and has an output of 50 – 90 MHz IF.

5.8 External Reference (Input)

The External Reference Input (J7) is supplied to allow the customer to phase-lock the modulator’s internal oscillator to an external reference.

This female BNC Connector accepts a 1.5 – 5 Vp-p @ 50Ω. The frequency range of the external reference is 1 – 10 MHz in 8 kHz steps.

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Electrical Interfaces MM200 High-Speed Microwave Modem

5.9 Interface Slots 1 Through 4

Several Rear Panel Interfaces are available to slide into the base chassis to suit individual need. The Overhead/DS0 Audio Rear Panel Interface fits only in Interface Slot 1 (the upper left slot as viewed from the rear) and any combination of the following fit into any of the other three interface slots to suit the users need (Figure 5-1):

 High-Speed G.703/DS3, E3, STS-1 Rear Panel Interface  Overhead/DS0 Audio Rear Panel Interface  Optical/OC3 STM-1 Rear Panel Interface  ASI Rear Panel Interface  Wayside G.703/T1, E1 Rear Panel Interface  Parallel RS-422/DVB, M2P Rear Panel Interface  Parallel LVDS/DVB, M2P Rear Panel Interface  SMPTE/310M Rear Panel Interface

5.10 High-Speed G.703/DS3, E3, STS-1 Rear Panel Interface

The High-Speed G.703/DS3, E3, STS-1 Rear Panel Interface is shown in Figure 5-3. The connectors are listed below.

Figure 5-3. High-Speed G.703/DS3, E3, STS-1 Rear Panel Interface

5.10.1 G.703 OUT Female BNC Connector (J15)

Provides G.703 Data Output from the receiver.

5.10.2 CLK IN Female BNC Connector (J16)

Accepts External Buffer Clock input.

5.10.3 G.703 IN Female BNC Connector (J17)

Accepts G.703 Data Input to be transmitted.

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MM200 High-Speed Microwave Modem Electrical Interfaces

5.11 Overhead/DS0 Audio Rear Panel Interface

This rear panel interface (Figure 5-4) provides eight 64 Kbps DS0 interfaces or seven DS0 and one Audio Channels. Refer to Tables 5-6 and 5-7 for pin assignments.

Figure 5-4. Overhead/DS0 Audio Rear Panel Interface

Table 5-6. Channel 1 (Female 15-pin HD ‘D-Sub’)

DS0 Audio

Pin Signal Direction Pin Signal

1 RX_DS0 + Out 1 2 GND 2 3 TX_DS0 + In 3 PUSH_TT 4 REF_CLK + Out 4 REF_CLK + 5 N/C 5 AUDIO_TX 6 RX_DS0 - Out 6 7 RX_CLK + Out 7 8 TX_CLK - In 8

9 REF_CLK - Out 9 REF_CLK 10 N/C 10 AUDIO_RX + 11 RX_CLK - Out 11 12 TX_CLK + In 12 13 TX_DS0 - In 13 PUSH_TT-GND 14 N/C 14 AUDIO_RX 15 N/C 15 AUDIO_TX +

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Electrical Interfaces MM200 High-Speed Microwave Modem

Table 5-7. Channels 2 – 8

(Female 15-pin HD ‘D-Sub’)

DS0

Pin Signal Direction

1 RX_DS0 + Out

2 GND

3 TX_DS0 + In

4 REF_CLK + Out

5 N/C

6 RX_DS0 - Out

7 RX_CLK + Out

8 TX_CLK - In

9 REF_CLK - Out 10 N/C 11 RX_CLK - Out 12 TX_CLK + In 13 TX_DS0 - In 14 N/C 15 N/C

5.11.1 DS01 15-Pin Female HD ‘D’ Sub Connector (J7)

Provides Channel 1 DS0 or Audio Interface.

5.11.2 DS02 15-pin female HD ‘D’ sub connector (J8)

Provides Channel 2 DS0 Interface.

5.11.3 DS03 15-pin female HD ‘D’ sub connector (J9)

Provides Channel 3 DS0 Interface.

5.11.4 DS04 15-pin female HD ‘D’ sub connector (J10)

Provides Channel 4 DS0 Interface.

5.11.5 DS05 15-pin female HD ‘D’ sub connector (J11)

Provides Channel 5 DS0 Interface.

5.11.6 DS06 15-pin female HD ‘D’ sub connector (J12)

Provides Channel 6 DS0 Interface.

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MM200 High-Speed Microwave Modem Electrical Interfaces

5.11.7 DS07 15-pin female HD ‘D’ sub connector (J13)

Provides Channel 7 DS0 Interface.

5.11.8 DS08 15-pin female HD ‘D’ sub connector (J14)

Provides Channel 8 DS0 Interface.

5.12 Optical/OC3 STM-1 Rear Panel Interface

This rear panel interface (Figure 5-5) provides OC3 Optical or STM1 Electrical Interface.

Figure 5-5. Optical/OC3 STM-1 Rear Panel Interface

5.12.1 ELEC OUT Female BNC Connector (J15)

Provides STM1 Data Output from the receiver.

5.12.2 ELEC IN Female BNC Connector (J16)

Accepts STM1 Data Input to be transmitted.

5.12.3 OPTICAL IN SC Connector (J17)

Accepts OC3 Data Input to be transmitted.

5.12.4 Optical Out SC Connector (J18)

Provides OC3 Data Output from the receiver.

5.12.5 REF OUT Female BNC Connector (Optional) (J19)

Provides Reference Clock Output.

5.12.6 REF IN Female BNC Connector (Optional) (J20)

Accepts the Reference Clock Input.

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Electrical Interfaces MM200 High-Speed Microwave Modem

5.13 ASI Rear Panel Interface

This rear panel interface (Figure 5-6) provides Asynchronous Serial Interface (ASI).

Figure 5-6. ASI Rear Panel Interface

5.13.1 ASI OUT Female BNC Connector (J15)

Provides ASI Data Output from the receiver.

5.13.2 ASI IN Female BNC Connector (J16)

Accepts ASI Input to be transmitted.

5.14 Wayside G.703/T1, E1 Rear Panel Interface

This rear panel interface (Figure 5-7) provides T1 or E1 Data.

Figure 5-7. Wayside G.703/T1, E1 Rear Panel Interface

5.14.1 IN Female BNC Connector (J15)

Accepts E1 Data Input to be transmitted.

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MM200 High-Speed Microwave Modem Electrical Interfaces

5.14.2 OUT Female BNC Connector (J16)

Provides E1 Data Output from the receiver.

5.14.3 BALANCED 15-pin female ‘D’ sub connector

Provides T1 Data Input and Output at the following pinouts:

Table 5-8. Balanced 15 Pin Female ‘D’ Sub Connector

Pin No. Signal Direction

1 SD-A In To Modem 9 SD-B In to Modem 3 RD-A Out From Modem

11 RD-B Out From Modem

2,4 GND Ground

5.14.4 CLK OUT (J17)

Not Used

5.14.5 CLK IN Female BNC Connector (J18)

Accepts the Reference Clock Input.

5.15 Parallel RS-422/DVB, M2P

This rear panel interface (Figure 5-8) provides DVB or M2P via a Front Panel selection. It can be ordered with RS-422 or LVDS Levels.

Figure 5-8. Parallel RS-422/DVB, M2P and Parallel LVDS/DVB, M2P

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Electrical Interfaces MM200 High-Speed Microwave Modem

5.15.1 PARALLEL TX 25-pin female ‘D’ sub connector (J15)

Provides RS-422/LVDS DVB Demodulator Output.

Table 5-9. Parallel Tx RS-422/DVDS, DVB – 25-Pin Female

‘D’ Sub Connector

Pin Number DVB Signal J15

1 CLK+ Output

14 CLK- Output

2 SYSTEM GND Output

15 SYSTEM GND Output

3 D7+ Output

16 D7- Output

4 D6+ Output

17 D6- Output

5 D5+ Output

18 D5- Output

6 D4+ Output

19 D4- Output

7 D3+ Output

20 D3- Output

8 D2+ Output

21 D2- Output

9 D1+ Output 22 D1- Output 10 D0+ Output 23 D0- Output 11 DVALID+ Output 24 DVALID- Output 12 PSYNC+ Output 25 PSYNC- Output 13 Cable Shield ---

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MM200 High-Speed Microwave Modem Electrical Interfaces

5.15.2 PARALLEL RX 25-pin female ‘D’ sub connector (J16)

Accepts RS-422/LVDS DVB Modulator Input.

Table 5-10. Parallel Rx RS-422/LVDS, DVB – 25-Pin Female

‘D’ Sub Connector

Pin Number DVB Signal Direction

1 CLK+ Input 14 CLK- Input

2 SYSTEM GND Input 15 SYSTEM GND Input

3 D7+ Input 16 D7- Input

4 D6+ Input 17 D6- Input

5 D5+ Input 18 D5- Input

6 D4+ Input 19 D4- Input

7 D3+ Input 20 D3- Input

8 D2+ Input 21 D2- Input

9 D1+ Input 22 D1- Input 10 D0+ Input 23 D0- Input 11 DVALID+ Input 24 DVALID- Input 12 PSYNC+ Input 25 PSYNC- Input 13 Cable Shield ---

5.15.3 CLK IN (J17)

Not Used

5.15.4 CLK IN Female BNC Connector (J18)

Accepts the Reference Clock Input.

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Electrical Interfaces MM200 High-Speed Microwave Modem

5.16 Parallel LVDS/DVB, M2P

This rear panel interface provides Parallel RS-422/LVDS M2P Data.

5.16.1 PARALLEL TX 25-pin female ‘D’ sub connector (J15)

Provides RS-422/LVDS M2P Demodulator Output.

Table 5-11. Parallel Tx RS-422/LVDS, M2P – 25-Pin Female

‘D’ Sub Connector

Pin Number M2P Signal Direction

1 NC Output 14 NC Output

2 CLK+ Output 15 CLK- Output

3 SYNC+ Output 16 SYNC- Output

4 VALID+ Output 17 VALID- Output

5 D0+ Output 18 D0- Output

6 D1+ Output 19 D1- Output

7 D2+ Output 20 D2- Output

8 D3+ Output 21 D3- Output

9 D4+ Output 22 D4- Output 10 D5+ Output 23 D5- Output 11 D6+ Output 24 D6- Output 12 D7+ Output 25 D7- Output 13 Cable Shield ---

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MM200 High-Speed Microwave Modem Electrical Interfaces

5.16.2 PARALLEL RX 25-pin female ‘D’ sub connector (J16)

Accepts RS-422/LVDS M2P Modulator Output.

Table 5-11. Parallel Rx RS-422/LVDS, M2P – 25-Pin Female

‘D’ Sub Connector

Pin Number M2P Signal Direction

1 OUTCLK+ Output 14 OUTCLK- Output

2 CLK+ Input 15 CLK- Input

3 SYNC+ Input 16 SYNC- Input

4 VALID+ Input 17 VALID- Input

5 D0+ Input 18 D0- Input

6 D1+ Input 19 D1- Input

7 D2+ Input 20 D2- Input

8 D3+ Input 21 D3- Input

9 D4+ Input 22 D4- Input 10 D5+ Input 23 D5- Input 11 D6+ Input 24 D6- Input 12 D7+ Input 25 D7- Input 13 Cable Shield ---

5.16.3 CLK IN (J17)

Not Used

TM086 - Rev. 4.1 5-15

Electrical Interfaces MM200 High-Speed Microwave Modem

5.16.4 CLK IN Female BNC Connector (J18)

Accepts the Reference Clock Input.

5.17 SMPTE/310M Rear Panel Interface

This rear panel interface (Figure 5-9) provides SMPTE 310M Data.

Figure 5-9. SMPTE/310M Rear Panel Interface

5.17.1 EXT CLK (J15)

Not Used

5.17.2 SMPTE IN Female BNC Connector (J16)

Accepts SMPTE 310M Data Input to be transmitted.

5.16.3 SMPTE OUT Female BNC Connector (J17)

Provides SMPTE 310M Data Output from the receiver.

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MM200 High-Speed Microwave Modem Electrical Interfaces

TM086 - Rev. 4.1 5-17

MM200 High-Speed Microwave Modem Troubleshooting and Maintenance

Maintenance a nd Troubleshooting

6.0 Periodic Maintenance

The MM200 modulator requires no periodic field maintenance procedures. Should a unit be suspected of a defect in field operations after all interface signals are verified, the correct procedure is to replace the unit with another known working MM200. If this does not cure the problem, wiring or power should be suspect.

There is no external fuse on the MM200. The fuse is located on the power supply assembly inside the case, and replacement is not intended in the field.

6.1 Maintenance Philosophy

The units Alarms, Monitors and Self Test functions will allow the operator the accurately diagnose if a problem exists within the MM200, or the signals coming to the MM200 from other equipment (including other MM200s). Additionally problems can be diagnosed to replaceable interfaces or the main MM200 chassis. Once a problem is believed to be with the MM200, it is expected that a replacement unit or interface will be used to prove where the fault lies. The faulty unit can then be sent to a Radyne Inc. repair center for repair. Please contact your Radyne Inc. Customer Service Center for return authorization and any special instructions.

6.2 Customer Service

Before calling your Customer Service representative with a question about your MM200, please obtain the following information:

1. The unit’s serial number.

2. The main software number (listed on the Front Panel in the System Menu under HW/SW CONFIG.

3. The alarms that are triggered by the fault. These can be reviewed in the Current Alarms/Latched Alarms and the Events Menus. Refer to Sections 4.4.6, and 4.4.7 for more information on viewing these alarms.

4. All of the values shown in the Dmd Monitor Menu at the Receive Site.

TM086 - Rev. 4.1 6-1

Troubleshooting and Maintenance MM200 High-Speed Microwave Modem

Note: If a terminal is available it is easier to view all these parameters on a terminal screen (SW Revisions 2.03 and above) See Section 4.7 for more information.

6.3 Troubleshooting

Problem: Common Alarms “GLUE HW FPGA” or ”TEST HW FPGA.” Actions: Replace the M&C Mux Card. Problem: No demodulator lock Actions:

1. Check the SNR and AGC of the demodulators. The SNR should be 33.0 or higher and the AGC should be between 200 and 600.

2. Verify that the modulator and the demodulator are set up correctly.

3. If a channel does not have the correct SNR or AGC, set the system's frequency plan to USER and check the frequency for each channel to verify that they match between the modulator and demodulator. Check the SNR and AGC again for correct readings.

4. If a channel is bad, set the demodulator's frequencies to the frequency that has the problem. If all the demodulator channels have bad SNR and AGC readings at the set frequency, the modulator channel that the frequency is set to is bad.

5. If all of the demodulator channels have good SNR and AGC except the original bad channel, that demodulator channel is bad.

Example: Channel 3 has low SNR and high AGC. The system's frequency plan is changed to USER. Check the frequency for each channel to verify that they match between the modulator and demodulator. Channel 3 still has low SNR and high AGC. Change the frequency of the demodulators to the frequency of Channel 3. If all of the demodulator channels have low SNR and high AGC, Channel 3 of the modulator is bad. If all the demodulator channels have good SNR and AGC except Channel 3, Channel 3 Demodulator is bad.

Problem: Bad Interface Actions:

1. Verify that the system has RF Lock. If there is no RF Lock, check the modulator and demodulator for problems.

2. Check the setup of the interface (both transmit and receive).

3. If there is RF Lock, put the unit into Mux/Demux Loopback and check for data lock.

4. If no data lock, swap the interface for a known working interface.

5. If no data lock with known working interface, check the interface in a different slot.

6. If there is an interface problem or a modem interface slot problem, call the Radyne Inc. Customer Service Department.

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Troubleshooting and Maintenance MM200 High-Speed Microwave Modem

6-4 TM086 - Rev. 4.1

MM200 High-Speed Microwave Modem Technical Specifications

Technical Specifications

7.0 Introduction

This section defines the technical performance parameters and specifications for the MM200 High-Speed Microwave Modem.

7.1 Specifications

Total Data Rate Variable from 1 to 200 Mbps total in 1 bps steps

Note Interface selection may limit maximum data rate.

Total Baud Rate 3.5 – 7, 7 – 14, 10.5 – 21, or 14 – 28 Mbaud depending

upon number of IF channels installed IF Channels 1 to 4 IF Channel Baud Rate 3.5 to 7 Mbaud Per Channel Mux/Demux One to four* data channel DVB compliant Modulation 4, 16, 32, 64, 128, 256 QAM* FEC 204/188 Reed Solomon FEC/Mux Overhead 204/184 (204/188 for DVB Framed Interface) Adaptive Equalizer 12 tap DFE and 8 tap FFE (One per IF Channel) IF Range 50 to 90 MHz* IF Return Loss 20 dB Tx Output Power 0 to -25 dBm in 0.1 dB steps* Spurious Output -55 dBc in-band Rx Input Power 0 to –25 dBm. Frequency Stability 10 ppm Carrier Acquisition ± 400 kHz or ± 10% of channel baud rate, whichever is

less Rx Data Buffer 0 to ± 2 Mbits Remote Control SNMP RS-485/-232 Modem Drives External Terminal Chassis Size 2 RU (3.5") Power 85 to 264 VAC, 50/60 Hz Environmental 0 – 50° C Compliance CE mark

7.2 Options

-48 VDC Simplex Configuration, Modulator Only Simplex Configuration, Demodulator Only Space Diversity, Demodulator Only Additional Mod IF Channels. Up to 4 per Chassis Additional Demodulator IF Channels. Up to 4 per

Chassis

TM086 - Rev. 4.1 7-1

Technical Specifications MM200 High-Speed Microwave Modem

7.3 Optional Data Interfaces

G.703 T3, E3 or STS-1* DVB ASI (normal or advanced) RS-422 Parallel, DVB Parallel, M2P* LVDS Parallel, DVB Parallel, M2P* OC3 Optical, STM1/ STS3 Electrical* SMPTE Other interfaces available upon request

Note: Up to 4 interfaces per chassis. Any c o mbination can be install ed and operated by front panel control. Only o n e interface can be co n figured for DVB framed data.

7.4 Optional Overhead Interfaces

Orderwire Can be configured for eight DS0s or seven DS0s plus

one Audio* Wayside T1 or E1*

* Front panel selectable.

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Technical Specifications MM200 High-Speed Microwave Modem

7-2 TM086 - Rev. 4.1

Comtech EF Data MM200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual