RACOM ECONOMY RE400 Operating Manual

Operating manual

.

Narrowband radio modem ECONOMY

RE400

.

version 1.12

5/12/2009

Table of Contents

Abbreviations used .............................................................................................................................. 5

Introduction .......................................................................................................................................... 6

1. Radio modem RE400 ...................................................................................................................... 7

2. Description ...................................................................................................................................... 8

2.1. Compatibility ......................................................................................................................... 8

2.2. Operation modes .................................................................................................................. 8

2.3. First start of radio modem .................................................................................................. 11

2.4. Radio modem configuration ............................................................................................... 12

2.5. Diagnostics ......................................................................................................................... 14

2.6. Error log .............................................................................................................................. 15

2.7. Firmware upgrade .............................................................................................................. 18

3. Connectors .................................................................................................................................... 21

3.1. Antenna .............................................................................................................................. 21

3.2. Serial interface ................................................................................................................... 21

3.3. Ethernet interface ............................................................................................................... 21

3.4. Power supply ...................................................................................................................... 21

3.5. Indication LEDs .................................................................................................................. 22

4. Table of Technical Parameters ...................................................................................................... 24

5. Dimensions, drawings, manufacturing code ................................................................................. 25

5.1. Dimensional Diagram ......................................................................................................... 25

5.2. Labelling of Radio Modems ................................................................................................ 28

6. Radio modem installation .............................................................................................................. 29

6.1. General description ............................................................................................................ 29

6.2. Antenna installation ............................................................................................................ 29

6.3. Supplying power to the equipment ..................................................................................... 30

6.4. Technology connection ....................................................................................................... 32

6.5. Radio modem mounting ..................................................................................................... 33

7. Conditions for Radio Modems Operation ...................................................................................... 37

7.1. Important Warning .............................................................................................................. 37

7.2. Conditions of Liability for Defects and Instructions for Safe Operation of Equipment ........ 37

7.3. Product Conformity ............................................................................................................. 37

7.4. Limitations of Use ............................................................................................................... 39

A. Appendix ....................................................................................................................................... 40

B. Revision History ............................................................................................................................ 44

List of Figures

1. Radio modem RE400 ...................................................................................................................... 6

2.1. Settings menu ............................................................................................................................ 12

2.2. Diagnostics menu ....................................................................................................................... 14

2.3. Error log ...................................................................................................................................... 15

2.4. Transparent loader ..................................................................................................................... 20

3.1. Antenna connector SMA ............................................................................................................ 21

3.2. RS232 DSUB9 female ................................................................................................................ 21

3.3. RJ-45F ........................................................................................................................................ 21

3.4. Appearance of radio modem ...................................................................................................... 22

5.1. Mounting dimensions of the radio modem - version D and H .................................................... 26

5.2. Mounting dimensions of the radio modem - version R and S ................................................... 27

6.1. Supplying power over the ethernet interface, using a PoE P.S. ................................................. 30

6.2. Supplying power over the ethernet interface, using the passive PoE injector ........................... 31

3© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

6.3. Supplying power over the SCC interface, using a REPWR adaptor and P.S. with battery

backup ............................................................................................................................................... 31

6.4. Supplying power over the ethernet interface directly from the technology ................................. 32

6.5. Pasive PoE injector .................................................................................................................... 32

6.6. REPWR adaptor ......................................................................................................................... 32

6.7. Horizontal body, DIN rail mount, version D ................................................................................ 33

6.8. Horizontal body, mount on a plate, version H ............................................................................ 34

6.9. Vertical body, DIN rail mount, version R ..................................................................................... 34

6.10. Vertical body, mount on a plate, version S ............................................................................... 35

6.11. Assembly example ................................................................................................................... 36

7.1. CE sign ....................................................................................................................................... 38

7.2. RE400 consistency declaration .................................................................................................. 38

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.4

Narrowband radio modem ECONOMY
RE400

Abbreviations used

RFC Radio frequency channel

SCC Serial communication channel

ETH Ethernet channel

CDMA Carrier detect multiple access - controlled access to RFC

CRC16 Cyclic redundancy check - applied to packet header

CRC32 Cyclic redundancy check - applied to packet data

PoE Power over Ethernet - supply via the Ethernet cable

AUX Auxiliary - supply via RS232 DSUB9 connector

TX Transmitting to RFC

RX Receiving from RFC

tx Transmitting to SCC

rx Receiving from SCC

NoR Number of repeaters - parameter in the configuration menu

MTU Maximum transmission unit - max. length of transmitted packet

5© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Abbreviations used

Introduction

This operating manual serves as the primary document for familiarising users with the parameters of
the radio modem, its properties, modifications, and with the parameters of connecting parts. In order
to master all the functions of the radio modem and the MORSE system you should refer to other docu­ments.

Transparent radio modems of the ECONOMY range are primarily designed for smaller networks and
applications in which security of transmission and access to the radio channel are resolved within the
application itself.

Within the MORSE system they are generally installed in separate networks. A combination of PROFI
(backbone network) and ECONOMY (last mile) radio modems is usually used in large-scale systems.

Communication protocols on RF channel of PROFI and ECONOMY radio modems are not compatible;
they have to be interconnected via SCC or ETH interfaces and different frequencies have to be used.

Fig. 1: Radio modem RE400

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.6

Introduction

1. Radio modem RE400

RE400 is a transparent radio modem for wireless data transfer with a modern, digital solution of the
radio part (Software Defined Radio). It provides a wide tuning range including software-configurable
channel spacing. It is equipped with Ethernet and RS232 interfaces, Powered over Ethernet (PoE) or
via pins on a serial interface connector. Configuration is performed via an ordinary Internet browser.

The mechanical construction has been designed to allow excellent dissipation of heat from electronic
components on the metal case and the therefore the processor is well protected against excessive
overheating. This construction allows for long-term loading. The modem is designed for applications
which are permanently in operation.

7© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Radio modem RE400

2. Description

2.1. Compatibility

Firmware version 2.1.x.x is not compatible with older versions 2.0.x.x. Older fw needs to be upgraded
with the new version 2.1.x.x, see Section 2.7, “Firmware upgrade”.

2.2. Operation modes

There are 3 possible operation modes:

• Main mode – mode of a standard operation

• Service mode – mode for firmware download

• Bootloader mode – mode for downloading bootloader

2.2.1. Main mode

Main mode is a standard operating mode where the radio modem works as a transparent bridge on
the Ethernet interface or as a transparent link (bus) on the serial interface. Main mode is operated after
approx. 20 sec. from switching on the supply voltage. The deblock mechanism can be activated after
a short-time break and can stretch this time. Main mode is indicated by LED STATUS – green colour
2 sec. ON and 1 sec. OFF.

Default state

When button RST is pressed for 10 sec. during Main mode, the STATUS LED changes its colour to
yellow and the parameters are set to default values. After the next 15 sec. default values are saved
and the radio modem goes back to Main mode working with default values and IP address 192.168.1.2
hereafter.

Generally

Frames are transmitted to the opposite side of the radio network to an application through the same
interface (RS232 or Ethernet) as they have been received.

Communication over serial interface

The data received through SCC is loaded into buffer of depth 5 packets and subsequently sent to RFC.

A packet received through RS232 is closed when its size achieves a value set in the MTU parameter,
or after a pause, which is equal to the parameter Idle. Afterwards it is immediately transmitted to the
RF channel (neither CDMA nor TDMA RF channel access). All radio modems which receive this
packet transmit it to their serial interface. The network works like an RS232 bus, i.e. every one hears
each other, so it is suitable for “poll” type applications, when the master station polls requests to slave
stations one by one. It is possible to connect more slaves behind one radio modem using an external
RS485 converter.

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.8

Description

Communication over an Ethernet bridge

The data received on ETH channel are sent immediately to RFC. The packet received during RF
transmitting is discarded. The operating with the Repeater when the parameter NoR has a nonzero
value is a exception. The input buffer of depth 1 packet is used here. It allows accept the response
from ETH device connected in the short time after receiving the packet from RFC. The RFC transmitting
is suspended at that time, see the article Repeated packets.

The radio modem works as a standard Ethernet transparent bridge, i.e. received frames are filtered
and only frames for addresses behind the RF channel are transmitted to the RF channel. The only
exception are broadcast packets which are all transmitted to the RF channel.

More information on http://www.linux-foundation.org/en/Net:Bridge.

Example:

One RE400 is connected to a LAN1 segment, the second RE400 to a LAN2 segment. IP addresses
of both RE400 are not important for data transfer itself. They are used only for service purposes (setting
up parameters). It is FORBIDDEN, however, to set the IP address of any radio modem to the same
value of any equipment in either LAN1 or LAN2 segments.

The first RE400 connected to LAN1 processes frames as follows:

• broadcast (arp req) and arp reply... — transmitted to RF channel

• frame for destination addresses within LAN1 segment — discarded

• frame for destination addresses within LAN2 segment — transmitted to RF channel

Repeater function

If station RE400 has the Repeater function switched ON then the received packet will again send an­other packet to the RF channel. The packet received from the RF channel is also sent to SCC or to the
ETH port. In the radio network it is also possible to use more Repeaters without danger of cycling
packets. When switching on function Repeater it is necessary to enter the number of Repeaters in the
network into parameter Number of repeaters (NoR). Parameter NoR is set in the same way in all radio
modems of the network.

Repeated packets

Parameter Number of repeaters switches on protection mechanisms which prevent collisions with
packets sent by the repeater. After transmitting or receiving a packet from RFC further transmission is
blocked for the required period to prevent a collision with a packet sent by the Repeater. After transmitting
or receiving a packet from RFC recepit of its copy is checked and discarded.

These measures are not active when parameter NoR is zero, i.e. in a network without Repeaters.

Compression

There is built in compression on the RF channel. Its final efficiency depends on the data structure, of
course.

9© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

Fragmentation

It is possible to set a threshold on the radio channel from which transmitted packets begin to fragment.
The receiving modem transmits a packet to the interface only when all fragments are received success­fully. This also applies in a Repeater for transmission of a packet to the RF channel.

From fw 2.1.3.0 the fragmented packets are processed in Repeater in the different way. This caused
the acceleration of communication but simultaneously the incompatibility with the older versions 2.0.x.x.
These older firmware is to be replace by the version 2.1.3.0 or some of the serie 2.1.x.x, see Section 2.7,
“Firmware upgrade”.

Remote access

In the case of good conditions for communication on RFC remote access to radio modem RE is an
available option. Insert the IP address of the remote modem RE into the www browser attached by
Ethernet cable to the RE modem. Leave cursor in the address line and press Enter. We can read and
save configurations in the remote modem. Typical reaction time is 20 to 40 sec.

This function is not generally guaranteed because the http protocol is not optimised for work in slow
networks. In the case of a slow response from the radio channel the TCP protocol adaptively extends
timeout up to tens of seconds. In addition a PC running Windows generally has other protocols installed
on the ETH channel which load or worsen communication conditions.

2.2.2. Service mode, Bootloader mode

These modes are used for firmware upgrades (Section 2.7, “Firmware upgrade”): Service mode for
firmware downloads, Bootloader mode for bootloader downloads.

Switching to Service mode: approx. 2 sec. after switching on power press the RST button for a few
seconds. Service mode is indicated by the yellow STATUS LED flashing every 1+1 sec.

Switching to Bootloader mode: keep RST button pressed while switching on the power for approx. 3
sec. Bootloader mode is indicated by quick flashing of the yellow STATUS LED.

Both Service mode as well as Bootloader mode use 192.168.1.1. IP address.

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.10

Description

2.3. First start of radio modem

1. Two radiomodems having the same address must not be in the common network neither radio

nor ethernet.

Parameters of each radio modem are set during production with default values : IP address

192.168.1.2, mask 255.255.255.0. It is strictly forbidden to connect a radio modem to LAN before
setting up the appropriate IP address and mask. (The default IP may already be in use in the LAN
and address collision can occur)

Do not switch on more than one radio with default settings at any one time ! Only switch on the
next one after setting and storing IP parameters in the first one.
In default mode radio modems use the same address 192.168.1.2 and communication amongst
themselves thus disturbs IP communication between the PC and configured radio modem.

2. Interconnect the ETH interface of the radio modem with your PC. A standard Ethernet cable should

be used.

To connect the power supply, either PoE (Ethernet interface) or AUX (SCC interface) – more
Section 3.4, “Power supply”, LEDs PWR and ETH should light. After approx. 20 sec. booting of
radio modem is finished and the STATUS LED starts flashing green.

3. To set the IP address and mask of your PC in order for it to be ready to communicate with the

default IP of the radio modem. A ping may be used to check that the connection works properly.
Read more in Appendix A, Appendix.

Start www browser (e.g. Internet Explorer) in your PC and insert 192.168.1.2. address in the
command line instead of internet address.

Settings menu is displayed. Here it is possible to set all parameters.

4. Select a unique IP address of each radio modem within the network. This address is not used by

the connected technology, however, it is required for configuration and testing.

Individual parameters may be set (see Section 2.4, “Radio modem configuration”). Configuration
can be saved into the radio modem using Save or into a file using Save to file.

When the IP address is changed and configuration is saved into the radio modem, the connection
between your PC and radio modem will be lost. The next configuration is only possible after inserting
a new IP address into the www browser. If a new IP is out of the mask of your PC, the IP address
of your PC needs to be changed as well (see Appendix A)

When configuration is ready and saved the radio modem is ready to operate in your network.

5. Before configuring the next radio delete table Art (Start, Run, arp -d) in the PC. Table arp contains

a pair of IP addresses 192.168.1.2 and MAC addresses of the radio modem. Another pair must
be created for the next radio modem.

6. When basic parameters are set (prior to starting the application), it is recommended to test the

radio connection among radio modems using a Ping in the Diagnostic menu, see Section 2.5,
“Diagnostics”. An ordinary ping application from Windows, for example, may be used as well.
Don't forget to connect the antennas, see Section 3.1, “Antenna”.

Communication with the application is indicated by LEDs as described in Section 3.5, “Indication
LEDs”.

11© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

2.4. Radio modem configuration

ON LINE

The radio modem is connected to your PC as described in Section 2.3, “First start of radio modem”
and its parameters can now be set:

Fig. 2.1: Settings menu

Product identification data can’t be changed:•

• Type: RE410 — specific type for specific frequency range, see Section 5.2, “Labelling
of Radio Modems”

• Product No.: 7347743 — unique production number (it is used for a Ping test, for ex­ample)

• FW version: 2.1.3.0 — firmware version downloaded

Dia­gnostics

Ping — menu for testing using pings, see Section 2.5, “Diagnostics”•

• Error log — log of warn and error messages, see Section 2.6, “Error log”

• RE400 config — this configuration screen

Radio Frequency 402 125 000 Hz — working frequency, it has to be set in a 6.25 or 5 kHz

grid

•

• Channel spacing — selection of channel spacing and data rate (modulation)

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.12

Description

• RF Power — 0.3 W or 2 W

• Fragment threshold— the threshold, from which the packet fragmentation in RFC starts
exert (50 - 1480 bytes). See Section 2.2.1, “Main mode”

• Repeater — repeated transmitting, store and forward transmitting. Set up options:

No — Repeater not active, default state

Yes — Packet received from RFC is sent to RF channel and also to serial or ETH port

• Number of repeaters — total number of Repeaters in the network, similar settings
throughout the network

0 — Transparent behaviour of radio modem

1, 2, >2 — Regulation of transmission to create space for a packet transmitted by

the repeater, inspection and discarding of repeated packets.

RS232 Idle — number of empty bytes. Packet is closed after a pause, which is equal to the

number of Idles. Min. value 6.

•

• MTU — the incoming packet is closed at this size. A shorter packet is closed at Idle.
Longer packet is sent to RFC in the length MTU, the remaining part is saved in the input
buffer and is sent to RFC subsequently. See Section 2.2.1, “Main mode”

• The rest are standard, well known parameters of serial communication

Ethernet Generally known parameters of IP communication.•

Executive
buttons

Default — sets default values on the screen•

• Read — reads values from radio modem memory

• Save — saves values from the screen into radio modem memory - the screen is refreshed
automatically. The button Continue here which appears meantime solves the error
states only.

• Save to file — saves values from the screen to a file

• Open file — Browse – reads values from a file on the screen.

OFF LINE

Parameters of radio modems can be configured off line using the web page:

http://re400.racom.eu

Using this page you can create a .cnf file that can later be downloaded into the radio modem or you
can view and modify parameters already saved in a file. The download is made in two steps - load it
into Configuration menu using the button Open file and save in the radiomodem using button Save.

The configuration file may be edited directly as well:

IP=192.168.1.47 BAUD=19200
MASK=255.255.255.0 DBITS=8

13© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

GW=192.168.1.47 PARITY=0
TX_FREQ=402125000 SBITS=2
RX_FREQ=402125000 IDLE=10
SPACING=1 SIZE=4000
RFPWR=0 HANDSHAKE=0
REPEAT=0 FRS=1480

TPL_ON=1

Note: Check whether the set frequency is within the range for the specific type of modem; it doesn't
work for off line configuration.

2.5. Diagnostics

Fig. 2.2: Diagnostics menu

Pings are used for testing response times and signal strengths from remote radio modems.

• Ping address: 7353743 — product No. of remote radio modem

• Ping timeout: 1000 — transmitting period of pings, ms

• Ping count: 0 — number of pings

• Ping length: 22 — length of data transferred excluding header, Bytes

• Send 'count' times — starts transmitting Ping count

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.14

Description

• Send continually — starts transmitting pings continuously - a few of seconds later the screen re­freshes automatically. For next refresh use the button Refresh log.

• Stop — stops transmitting

• Refresh log — updates the Ping activity log

• Ping activity log — standard information + RSS (received signal strength). The message rss NA
is caused by very strong signals around -50dBm. There are separate records for transmitted and
received pings.

2.6. Error log

When the radio modem is in operation packet processing messages are generated:

Fig. 2.3: Error log

Overwiev of reports RR_FPGA_WARN:

• TX busy -> new packet discarded (for IP only)
A new request for transmission is discarded because transmission is currently taking place.

• TXbuf full - timeout!
A TX_STOP signal didn't arrive from FPGA.

• Input buffer store timeout. Old packet discarded.

15© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

The packet has been waiting for such a long time in the input buffer (4min) that it is discarded.

• Fragment - sequence error
The serial number of the fragment does not correspond to that expected.

• Fragment - total number error
Information about the total number of fragments does not correspond to the previous fragment.

• Fragment - source address error
The received fragment is from another source address (serial number of radio modem) than the
previous fragment.

• Fragment - receive timeout
The next fragment (does not apply to the first one) did not arrive within the timeout period (timeout
is given by the transmission time of a single fragment in RFC).

• Fragmented packet being transmitted -> new packet delayed
Transmission of a packet has been held up (the packet is stored in the input buffer) owing to
transmission or receipt of a fragmented packet. During receipt this doesn't apply to the first fragment
(it is not yet known that it is a fragment).

• Fragment - missing first fragment
A fragment not marked as the first has been received (and the first hasn't yet been received).

• Compression inflate error
Packet decompression error.

• Compression deflate error
Packet compression error.

• Receive process interrupted
Received data is damaged because transmission occurred during receipt.

• (ERR2) - header corrupted
FPGA does not understand the packet header (another version of the protocol in the air or interfer­ence).

• (CRC16) - header corrupted
CRC16 didn't appear in the header of the received packet.

• (CRC32) - data corrupted
CRC32 didn't appear in the data of the received packet.

The following messages only for Number of repeaters > 0 :

• Returned packet -> discarded (for NoR>0)
The same packet that was sent arrived back during the timeout period.

• Same packet -> discarded (for NoR>0)
The same packet, but with a different source address, was repeatedly received during the timeout
period.

• TX delayed -> new packet delayed (for NoR>0)
Packet transmission has been held up owing to activation of delays related to the repeater.

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.16

Description

• TXbuf full -> new packet discarded (for NoR>0)
A packet for sending is already waiting in the input buffer. A new one is therefore discarded.

17© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

2.7. Firmware upgrade

There is fully functional firmware in the radio modem from production. When a firmware upgrade is
required, take the following steps (example for fw version 2.1.3.0):

Install application trloader to your PC

a. Download installation package1, e.g.: 2.1.3.0/trloader-win-gui-0.1.3.0.exe here:

www.racom.eu/Download/Archive/ECONOMY radio modems/

b. start trloader-win-gui-0.1.3.0.exe

Folder c:\Racom\Trloader will be created with respective files there.

c. Download respective firmware2, e.g. 2.1.3.0/tr1-2.1.3.0.rpg, to c:\Racom\Trloader

folder, the latest version may be downloaded here:

www.racom.eu/Download/Archive/ECONOMY radio modems/

Note - do both downloadings from the same folder, e.g.: 2.1.3.0/.

d. Start fwtrloader.exe in c:\Racom\Trloader folder.

Use Settings/Select Firmware package in order to select a package of respective firmware
(e.g. tr1-2.1.3.0.rpg). The application creates folder c:\Racom\Trloader\fw_pkg with
the respective files.

Firmware download

Put in PC suitable statical IP address, e.g. 192.168.1.233/24, connect RE via Ethernet and start it in
the bootloader mode
(start with pressed RST button, STATUS LED is flashing yellow quickly, address used 192.168.1.1).

Continue with fwtrloader.exe. This utility is accessible also from windows menu Start:

1

https://www.racom.eu/eng/download/archiv-economy.html

2

https://www.racom.eu/eng/download/archiv-economy.html

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.18

Description

Start, Programs, Racom, TrLoader, Firmware Transparent loader

1. Select Application/Upgrade firmware-Step1

(download the first part of firmware, takes approx. 45 sec, STATUS LED is flashing yellow slowly,
address 192.168.1.1)

2. Select Application/Upgrade bootloader

(download the new bootloader module, approx. 40 sec, STATUS LED is flashing yellow slowly,
address 192.168.1.1)

This step can be omitted, if the bootloader in RE is not older then version mentioned in the file:

c:\Racom\Trloader\fw_pkg\tr1-2.1.3.0\bootloader\COMPAT

The check is accomplished automatically at Upgrade firmware-Step2. If the return to the
step Upgrade bootloader is necessary then the report appears:

3. Select Application/Upgrade firmware-Step2

(download the second part of firmware, takes approx. 150 sec, STATUS LED is flashing green
slowly, address 192.168.1.2)

4. Select Application/Get device info

returns the actual fw version from the radio modem. It is also possible to set the customer's IP
address (Settings/Parameters/altIP) instead of the original 192.168.1.2 for reading the fw
version from other radio modem. The loader uses the addresses in order 192.168.1.1, 192.168.1.2
and altIP.

19© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Description

Fig. 2.4: Transparent loader

5. When downloading more consecutive RE, then clear the arp records in PC. In Windows take the
following steps:

Start / Run / cmd
arp -a ...reads arp records
arp -d ...clears all arp records
arp -d 192.168.1.2 ...clears arp records for written address

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.20

Description

3. Connectors

3.1. Antenna

Fig. 3.1: Antenna connector SMA

There is an SMA-jack antenna connector on the radio modem
panel. Use only the respective type of connector of the respective
impedance on your antenna cable : SMA-plug, 50 Ω. It is recom­mended to use antenna coaxial cables like this: RG58 up to 10m,
RG213 up to 25m, H1000 for longer.

Important

A radio modem may be destroyed if an antenna or dummy load antenna is not connected.

3.2. Serial interface

Fig. 3.2: RS232 DSUB9 female

Tab. 3.1: RS232

signalDSUB9F

pin

CD1

RxD2

TxD3

DTR4

GND5

DSR6

RTS7

CTS8

+PWR9

3.3. Ethernet interface

Fig. 3.3: RJ-45F

• Ethernet connector RJ-45 for 10BaseT and 100BaseT fully matches
the standard of Power over Ethernet IEEE802.3af.

• The radio modem recognizes a standard or crossed cable and ad­apts itself automatically.

3.4. Power supply

There are 2 possibilities for the power supply:

• AUX – via RS232 DSUB9 connector, using pins 5 and 9 (see Sec­tion 3.2, “Serial interface”). Voltage 10.5-30 V, nominal 13.8 V.

To connect the power supply via RS232 connector, can be used REPWR adaptor.

21© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Connectors

• PoE – via Ethernet connector RJ-45 using PoE standard IEEE802.3af. Voltage 38-57 V. Common
version of supplying:

plus to pins 4+5
minus to pins 7+8
the polarity can be inverted also

For other options with PoE adapter see the standard IEEE802.3af.

To connect the power supply via Ethernet connector, can be used Pasive PoE injektor.

Important

Only ONE of the above power supply options can be used !

Examples and details in Chapter 6, Radio modem installation.

3.5. Indication LEDs

PWR

TX

RX

ETH

232

STATUS

RE

ANT.

RS232

ETH

RST

Fig. 3.4: Appearance of radio modem

Key to LEDs

PWR Yellow – AUX (power via RS232)•

• Green – PoE (power via Ethernet)

TX Red - transmitting•

RX Green – RF sync•

• Yellow – there is a signal stronger than -80 dBm on RF channel (or transmitting proceeds)

ETH Yellow – connected with 100 Mb/s speed•

• Yellow flashing – data transfer with speed of 100 Mb/s

• Green - connected with 10 Mb/s speed

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.22

Connectors

• Green flashing – data transfer with speed of 10 Mb/s

232 Green – data receiving•

• Yellow – data transmitting

STATUS • status of operating system:

• Green flashing with period 2 sec ON, 1 sec OFF – main mode

• Yellow flashing with period 1 sec ON, 1 sec OFF – Service mode

• Yellow flashing with period 0.2 sec ON, 0.2 sec OFF – Bootloader mode

23© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Connectors

4. Table of Technical Parameters

Tab. 4.1: Technical parameters

RE400: 373.25–484 MHzFrequency range

25 kHz or 12.5 kHz or 6.25 kHz *Channel bandwith

5 kHz or 6.25 kHzFrequency step

softwareMethod of setting working frequency

< 1.5 msRx/Tx switching time

32 bit CRCData security on RF channel

better than -107 dBmReceiver sensitivity for BER 10

-3

0.5 WLow

Output power software
adjustable

2 WHigh

2.6 kbps in 6.25 kHz channel *

Data rate in RF channel 5.2 kbps in 12.5 kHz channel

10.4 kbps in 25 kHz channel

Ethernet, RS232Interfaces

SMAAntenna connector

>100 000 hodinMTBF (Mean Time Between Failures)

PoEAUXPower method

38–57 V10.8–30 V (nomin. 13.8 V)Power supply

145 mA/48 V430 mA/13.8 VIdle state (Rx)

Power consumption
(cca)

230 mA/48 V700 mA/13.8 VLow power Tx

310 mA/48 V950 mA/13.8 VHigh power Tx

-25 až +55 °COperating temperature range

-35 až +85 °CStorage temperature range

137 × 96 × 31 mmCase dimensions

0.3 kgWeight

* Channel spacing 6.25 kHz is not approved under EU rules.

Tab. 4.2: Standards complied with

ETSI EN 300 113-2 V 1.6.1Radio parameters

ETSI EN 301 489-1 V1.6.1EMC (Electromagnetic Compatibility)

CENELEC EN 60 950 ed.2:2006; EN 50 385;
EN 50 383

Electrical safety

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.24

Table of Technical Parameters

5. Dimensions, drawings, manufacturing code

5.1. Dimensional Diagram

There are 4 versions of radio modems in terms of mounting:

D – Horizontal body, DIN rail mount, e.g. RE410D

H – Horizontal body, mount on a plate, e.g. RE410H

R – Vertical body, DIN rail mount, e.g. RE410R

S – Vertical body, mount on a plate, e.g. RE410S

Basic type is D. Other types available to order.

25© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Dimensions, drawings, manufacturing code

34 – H

DIN35Rail–D

2×M3L=152

+0,5

161–H

H

H

H

M4

2×M4

D

38 – D

137

96

30,5

DINRailClip

Fig. 5.1: Mounting dimensions of the radio modem - version D and H

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.26

Dimensions, drawings, manufacturing code

2×M4

137

96

30,5

DIN35Rail–R

104

112

S

R

R

2×DINRailClip– S

45

2× 3,3

Ø

34

36

DIN35Rail–R

DINRailClip

Fig. 5.2: Mounting dimensions of the radio modem - version R and S

27© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Dimensions, drawings, manufacturing code

5.2. Labelling of Radio Modems

is described in the next table:

062008

RE400

RE410D

MORSEcomponentsproductioncode,
ECONOMYradiomodems

MORSEECONOMY

Forequipmentseries:

basefrequency,MHz

D–flatwiseonDINrail,2clips
H–flatwise,2×M3screws
R–verticalonDINrail,1clip
S–vertical,2×M3screws

Frequenciestproduced:ypically

RE390373,250402,000

RE450435,000466,500

– MHz
RE410
RE430 MHz

– MHz

400,000–420,000MHz(398,750–421,500MHz)
417,500–447,500

Otherfrequenciesonrequest

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.28

Dimensions, drawings, manufacturing code

6. Radio modem installation

6.1. General description

Racom radio modems feature robust, metallic casing. They are used in different applications in different
environments, ranging from air-conditioned offices to heavy-industry plants.

Information in this chapter describes the standard method of installation, used in common industry
applications. It is based on regulatory standards which apply to the equipment and on the long-term
experience of our engineers. If your network is large and your application complex, we recommend the
network design to be done by one of our partners or directly by Racom1. Every network design should
begin by field measurements of the signal strength and quality and by careful evaluation of conditions
for propagation of radio waves in the area.

Every radio device has to meet conditions for operation in the given frequency range in the respective
country and the operator is responsible for the compliance.

A reliable operation of a radio modem requires a proper connection to the data-terminal equipment
serviced, the antenna has to be properly installed and connected to it and a proper and safe power
supply has to be used. The mounting and the optional housing has to correspond to the environment
and must not harm the radio modem performance.

The description of all interface connectors can be found in the Chapter 3, Connectors.

6.2. Antenna installation

Optimum installation of the antenna is influenced by a number of factors. The topography of the radio
network, the separation of radio points, the terrain profile between them, and conditions for signal
propagation all influence the type of antenna to be used and where it should be located. Sometimes
the appearance of the structure on which the antenna is to be located and the possibility of its damage
in publicly accessible places should also be taken into consideration. Generally it can be said that for
point-to-point type connections directional antennas are used, and for more remote points and points
with a poorer signal multilink directional antennas with greater gain are used. The height of the antenna
above ground level may improve the quality of the signal. The standard height of approx. 5 m can be
increased severalfold, but always in consideration of the length of the antenna lead, because each
coaxial cable used has its own defined attenuation. For longer leads coaxial cables with lower attenuation
are used and generally these have a larger cross-section, worse mechanical properties and are more
expensive. When using external antennas we recommend protecting the radio modem with overvoltage
protection on the coaxial cable.

We recommend to use vertical polarization for all radio modem networks.

Racom radio equipment in typical installations comply with applicable standards for human exposure
to RF electromagnetic fields, namely with standard EN 50385: 2002. The minimal safe distance is en­sured by the antenna position on a mast. When special installation is required, the conditions of the
standard above have to be met. The distance between the persons and antenna minimal 5 m comply
with applicable standards for human exposure of general public to RF electromagnetic fields, namely
with standard EN 50385: 2002. It is valid for all power levels and all antenna types which firm Racom
provides.

1

https://www.racom.eu/eng/services/

29© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Radio modem installation

6.3. Supplying power to the equipment

A power supply has to meet technical specifications of the equipment powered, see Section 4 Table
of Technical parameters. Radio modem can be powered either over the Ethernet interface according
to the PoE (Power over Ethernet) standard or over the SCC (RS232) interface by DC voltage 10.8-30V
(13.8V nominal). When powering over SCC we recommend one of the MORSE power supplies, e.g.
MS20002, which were specially designed for supplying of radio modems. MS2000 and MSU120 can
provide seamless switching to a backup battery while monitoring its state and charging it in an optimum
way. When using PoE, we can also recommend a RACOM PoE power supply which includes battery
backup option.

The following pictures show the four possible variants of power supply.

POWER
SUPPLY

MAST

DRAINHOLE

DOWN

ANTENNA HEIGHT

COAXLOOP

ANTENNA

CONECTORWITH

WATER-PROOFINGTAPE

COAXIAL RG58<10m,RG213<20m,H1000>20m

SWITCHGEAR

IP54

ETH

ETH+POE

LIGHTING
ARESTOR

~230V

RADIOMODEM

TECHNOLOGY

PWR

TX

RX

ETH

232

STATUS

R

E

POE

VER.1

Fig. 6.1: Supplying power over the ethernet interface, using a PoE P.S.

2

http://www.racom.eu/eng/products/ms2000.html

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.30

Radio modem installation

MAST

DRAINHOLE

DOWN

ANTENNA HEIGHT

COAXLOOP

ANTENNA

CONECTORWITH

WATER-PROOFINGTAPE

COAXIAL RG58<10m,RG213<20m,H1000>20m

SWITCHGEAR

IP54

LIGHTING
ARESTOR

RADIOMODEM

PWR

TX

RX

ETH

232

STATUS

R

E

VER.2

ETH

ETH+POE

DC36–57V

TECHNOLOGY

PassivePOE

adapter

Fig. 6.2: Supplying power over the ethernet interface, using the passive PoE injector

POWER

SUPPLY

COAXIAL RG58<10m,RG213<20m,H1000>20m

RS232

LIGHTING
ARESTOR

RADIOMODEM

~230V

PWR

TX

RX

ETH

232

STATUS

R

E

ACCU

12V/12 Ah

10.8–30V

+

-

MAST

DRAINHOLE

DOWN

CONECTORWITH

WATER-PROOFINGTAPE

SWITCHGEAR

IP54

SCC

TECHNOLOGY

+

-

FUSE

F6.3 A

ANTENNA HEIGHT

COAXLOOP

ANTENNA

VER.3

Fig. 6.3: Supplying power over the SCC interface, using a REPWR adaptor and P.S. with battery backup

31© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Radio modem installation

DRAINHOLE

DOWN

CONECTORWITH

WATER-PROOFINGTAPE

ANTENNA HEIGHT

COAXLOOP

ANTENNA

VER.4

LIGHTING
ARESTOR

RADIOMODEM

PWR

TX

RX

ETH

232

STATUS

R

E

POE–IEEE802.3af(longline)

MAST

TECHNOLOGY

Fig. 6.4: Supplying power over the ethernet interface directly from the technology

The layout of installation showed at ver. 4, i.e. when the radio modem is placed up on the mast (or
close to it), provides the valuable advantage of having a short antenna feeder (see section Antenna
installation). Remember that the ethernet cable has to meet the PoE standard requirements
(IEEE802.3af).

Adaptéry pro napájení RE400

Fig. 6.5: Pasive PoE injector

INPUT

10,8–30VDC

+

REPWR

RS232

RE400SIDE

RS232

RS232POWER

ADAPTOR

REPWR

Fig. 6.6: REPWR adaptor

6.4. Technology connection

The Data Terminal Equipment, a programmable controller, a PC or any other device communicating
over the radio network, has to be connected to the radio modem by a data cable to the serial or the

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.32

Radio modem installation

Ethernet interface according to the respective standard. These interfaces are described in detail in the
chapter Connectors.

6.5. Radio modem mounting

Radio modem can be either attached by screws to a mounting plate or simply clipped to a DIN rail. In
both cases, the body of the radio modem can be positioned (with respect to the mounting plane) either
horizontally (i.e. sitting on the flat base of the casing) or vertically (i.e. sitting on the narrow side). That
means there are four basic variants of mounting. The variant for which the mounting accessories are
delivered is indicated in the manufacturing code and can be requested in the order by specifying the
code, see Section 5.2, “Labelling of Radio Modems”. When no mounting preference is given, the basic
variant "D" (DIN rail, horizontal) will be delivered.

Fig. 6.7: Horizontal body, DIN rail mount, version D

33© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Radio modem installation

Fig. 6.8: Horizontal body, mount on a plate, version H

Fig. 6.9: Vertical body, DIN rail mount, version R

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.34

Radio modem installation

Fig. 6.10: Vertical body, mount on a plate, version S

All the dimensions and detailed drawings relevant for mounting can be found in the Section 5.1, “Di­mensional Diagram”. In a typical installation for industrial applications3the radio modem is mounted
into an IP54 cabinet together with the power supply, the backup battery and the surge protector.

3

https://www.racom.eu/eng/references/references.html

35© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Radio modem installation

Fig. 6.11: Assembly example

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.36

Radio modem installation

7. Conditions for Radio Modems Operation

7.1. Important Warning

RACOM s. r. o. (hereinafter referred to as RACOM) is the exclusive owner of all rights to this operator
manual. All rights reserved. Any duplication of this manual in any way, shape or form, or translation to
any other language (without the prior written consent of the owner of the rights) is strictly forbidden.
RACOM retains the right to make changes to the technical specification or functions of this product or
to terminate production of this product, or to terminate service support of this product without advance
written notice to the customer. RACOM firmware is available free of charge. Source code is the property
of RACOM and is not available to any user. Any commercial use of the software with this licence is
strictly forbidden. Changes to software and documentation are forbidden. RACOM firmware is released
with the intention that it will be useful, however without any specific guarantees.

Under no circumstances is the Racom or any other company or person responsible for incidental, ac­cidental or related damage arising as a result of the use of this product. The manufacturer shall not
provide the user with any form of guarantee containing assurance of the suitability and applicability for
its application. RACOM products are not developed, designed or tested for use in equipment which
directly affects the health and life functions of humans or animals and neither as part of other important
equipment, and RACOM does not provide a guarantee if company products are used in such equipment.

7.2. Conditions of Liability for Defects and Instructions for Safe Operation
of Equipment

Please read these safety instructions carefully before using the product:

• Liability for defects does not apply to any product that has been used in a manner which conflicts
with the instructions contained in this operator manual, or if the case in which the radio modem is
located has been opened, or if the equipment has been tampered with.

• The radio modem can only be operated on frequencies stipulated by the body authorised by the
radio operation administration in the respective country and cannot exceed the maximum permitted
output power. RACOM is not responsible for products used in an unauthorised way.

• Equipment mentioned in this operator manual may only be used in accordance with instructions
contained in this manual. Error-free and safe operation of this equipment is only guaranteed if this
equipment is transported, stored, operated and controlled in the proper manner. The same applies
to equipment maintenance.

• In order to prevent damage to the radio modem and other terminal equipment the supply must always
be disconnected upon connecting or disconnecting the cable to the radio modem data interface. It
is necessary to ensure that connected equipment has been grounded to the same potential. Before
connecting the supply cable the output source voltage should be disconnected.

• Only the undermentioned manufacturer is entitled to repair any devices.

7.3. Product Conformity

Hereby, RACOM s. r. o., declares that this RE400 radio modem is in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/ES. This equipment therefore bears the
CE marking. The warning exclamation mark in the circle marks the radio modem as class 2 equipment

37© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Conditions for Radio Modems Operation

denoting radio equipment with possible limitations or with requirements on authorisation to use radio
equipment in certain countries.

Fig. 7.1: CE sign

DeclarationofConformity–RE400

www.racom.eu

RACOMs.r.o. •Mirova1283•59231NoveMestonaMorave•CzechRepublic

Tel.:[phone]•Fax:[phone]•E-mail:[e-mail]

...thebroadestnarrowbandmoneycanbuy

 inaccordancewithDirectiveoftheEuropeanParliamentandoftheCouncilof9of

March1999onradioequipmentandtelecommunicationsterminalequipmentandthemutual
recognitionoftheirconformity.

1999/5/EC

th

Manufacturer:RACOM

Address:Mirova1283,59231NoveMestonaMorave,CzechRepublic

VATNo.:CZ46343423

Product:RE400

Purposeofuse:Radiomodem

We,themanufactureroftheabovementionedproduct,herebydeclarethat:

TheDeclarationofConformityisbasedonthefollowingdocuments:

allessentialradiotestsuiteshavebeencarriedoutandthattheabovenamedproductisinconformity

toalltheessentialrequirementsoftheEuropeanUniondirective–ANNEXIVfor
equipmentworkinginmodelistenbeforetransmit(thetechnicaldocumentationrelevanttothe
abovementionedequipmentcanbemadeavailableforinspectiononapplicationtomanufacturer);

theabovenamedproductissafeonconditionofusagementionedintheoperatingmanual.

1999/5/EC

DocumentNo.:Testspecification:Laboratory:
RA1225/01ETSIEN300113-TESTCOMPraha,CZ

ETSIEN301489-1V1.6.1TESTCOMPraha,CZ
CTESTCOMPraha,CZ

1V1.6.1(2007-07)
12/08(2005-06)
EB1442SNEN60950-1:2006ed.2

TheabovenamedequipmentisclassifiedasaClass2radioequipmentanditismarkedwithEquipmentClass
IdentifierinaccordancewithCommissionDesicion2000/299EC.

NoveMestonaMorave,25ofJuly2008

JiriHruska,CEO

th

Fig. 7.2: RE400 consistency declaration

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.38

Conditions for Radio Modems Operation

7.4. Limitations of Use

The RE400 radio modem has been developed for the frequency range 370 to 470 MHz. Specific fre­quencies are used for each country or region. A radio modem user must keep in mind that this radio
device cannot be operated without the permission of the respective local radio spectrum administrator
who provides a specific frequency for use and issues the appropriate permission for this. The RE400
radio modems can be used in the following countries either based on a general permission agreement
or on frequencies requiring a licence for operation. Country codes according to ISO 3166-1-Alpha-2
standard: AT, AU, BE, BR, BG, CA, HR, CZ, CY, DK, EE, FI, FR, DE, GR, HK, HU, IS, IE, IT, LV, LT,
LU, MY, NL, NO, PL, RO, SG, SI, ZA, ES, SE, CH, GB and US.

Important

Users of radio modems in North America must be aware that because the 406.0 – 406.1
MHz frequency range is reserved only for the government the use of radio modems on these
frequencies is strictly forbidden without proper permission.

39© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Conditions for Radio Modems Operation

A. Appendix

Setting IP addresses in your PC

It is necessary to set the respective IP address in your PC for radio modem configuration, e.g.

192.168.1.233. It is supposed your PC is using DHCP as a primary configuration

• Open menu Start, Settings, Network connections, Local Area Connection

• When window Local Area Connection Status is opened, click Properties

• Next window is opened. Select Internet network protocol (TCP/IP) and click on Properties

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.40

Appendix

• The next window is opened

• Select General (recomended) and choose Use the following IP address

• Insert IP address 192.168.1.233

• Set Subnet mask to 255.255.255.0

• Confirm OK in this window and in the previous also

•

•

The automatic choice is a second possibility. Then the General uses e.g. DHCP server setting and
the Alternate the IP address 192.168.1.233. This works more slowly and not quite reliably.

• Select Alternate Configuration

• Select User configured

• Insert IP address 192.168.1.233

• Set Subnet mask to 255.255.255.0

41© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Appendix

• Confirm OK in this window and in the previous also

When you are not using Windows XP follow the instructions in your manual for setting the IP address.

IP address check in PC

While using Windows, proceed e.g. like this:

1. Click menu Start, Run…

2. Write the command cmd

3. Write ipconfig and read the IP address in PC and the mask:

Check the connection PC - radiomodem using Ping

While using Windows, Ping is executed like this:

1. Check the connection between your PC and radio modem via the Ethernet cable.

2. Click menu Start, Run…

3. Write the command cmd

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.42

Appendix

4. Write ping 192.168.1.2 and press OK

5. A window will appear with a message:

When communication doesn’t work properly you will get a Timeout expired message.

If the communication between web browser and radiomodem does not work although, check the browser
setting. In the menu File there is the item Work offline which must not be marked off.

43© RACOM s.r.o. – Narrowband radio modem ECONOMY RE400

Appendix

B. Revision History

2008-03-26Revision 1.4

First edition

2008-04-18Revision 1.5
First start of radio modem — prevent start of two RE400 in default state together, they both use IP
address 192.168.1.2

2008-04-22Revision 1.6
Table of Technical Parameters — output power, data rate, power consumption.
Labelling of Radio Modems — frequencies

2008-05-15Revision 1.7
Radio modem configuration — Radio - Repeated packets, RS232 - MTU parameter

2008-08-24Revision 1.8
Revision history attached

2008-09-24Revision 1.9
New design of user menu
Firmware upgrade - bootloader
Consistency declaration added
Appendix - Setting IP addresses in PC - fixed address recomended

2008-11-05Revision 1.10
Firmware 2.1.x.x is not compatible with 2.0.x.x, see Fragmentation
Repeater parameters, Number of repeaters and their default states changed

Diagnostic information in the Error log
Updated for fw version 2.1.3.0

2009-03-18Revision 1.11
Added possibility to use the REPWR Adaptor and passive PoE Injektor + their pictures.

2009-03-30Revision 1.12
Complete and detailed table of technical parameters

Complete table of production code

Narrowband radio modem ECONOMY RE400 – © RACOM s.r.o.44

Revision History