ABB RER 103 Operating and installation instructions

Bus Connection Module
RER 103
Tecnical description

Bus Connection Module
Technical Descriptiopn
3
RER 1031MRS750532-MUM
Issued: 11.03.1997
Version: E/17.01.2007
Contents
1. General .......................................................................................5
2. Principle of operation ...............................................................6
3. Construction ..............................................................................7
4. Type designation ......................................................................8
5. Fibre-optic connectors and technical data .............................9

4
1MRS750532-MUM
Bus Connection Module
Technical Description
RER 103
Copyrights
The information in this document is subject to change without notice and should not
be construed as a commitment by ABB Oy. ABB Oy assumes no responsibility for
any errors that may appear in this document.
In no event shall ABB Oy be liable for direct, indirect, special, incidental or
consequential damages of any nature or kind arising from the use of this document,
nor shall ABB Oy be liable for incidental or consequential damages arising from use
of any software or hardware described in this document.
This document and parts thereof must not be reproduced or copied without written
permission from ABB Oy, and the contents thereof must not be imparted to a third
party nor used for any unauthorized purpose.
The software or hardware described in this documentisfurnished underalicenseand
may be used, copied, or disclosed only in accordance with the terms of such license.
Copyright © 2007 ABB Oy
All rights reserved.
Trademarks
ABB is a registered trademark of ABB Group. All other brand or product names
mentioned in this document may be trademarks or registered trademarks of their
respective holders.
Guarantee
Please inquire about the terms of guarantee from your nearest ABB representative.
Document Revisions
Version Date
E 17.01.2007 Layout & document reference in the
chapter 3 changed.

1MRS750532-MUM Product Type
5
Product Description
Sub Title
Manual Type
1 General
The bus connection module RER 103 acts as an interfacing unit between an RE_ 500
device and the fibre-optic SPA, LON®and IEC 60870-5-103 bus. The bus
connection module converts incoming optical signals from the SPA, LON®and
IEC_103 bus to electrical RS-485 signals for the RE_ 500 devices and vice versa.
The module is plugged into the RS-485 D-type subminiature connector on the rear
plate of the RE_500 device. It can be used together with any RE_500 device
provided with a 9-pin D-type connector. The bus connection module is powered
from the D-type connector of the RE_500 device.
RER 103 contains a Service Pin for LON®nodes. The RS-485 interface of the bus
connection module RER 103 is shown in figure below.
Fig. 1.-1 9-pin D-type connector and block diagram
9n_dliit
LON / SPA
9 +5 V in
8 Service Pin
7 GND
6 CD B
LON / SPA
CD A 5
R S B 4
R S A 3
DA A B 2
DA A A 1 RS485
R
x
x
RER 103
rer103block
D9P-connector

6
1MRS750532-MUM
Bus Connection Module
Technical Description
RER 103
2 Principle of operation
The RER 103 Bus Connection Module can be used in Loop and Star type bus
topologies. Also the line idle state of the module is selectable. It can be light on or
off. The selection of Loop/Star and light on/off is made by jumpers.
In the Loop topology the RER 103 module passes a message received from the fibre-
optic interface both to the fibre-optic transmitter and the RS-485 interface.
In the Star topology the module passes a message received from the fibre-optic
receiver only to the RS-485 interface.
A message received from the RS-485 interface is passed to the fibre-optic
transmitter in both bus topologies.
SPA bus communication is using Loop and light off modes, when the module
jumpers are in Loop and light off positions. LON®bus communication is using Star
and light off modes, when the module jumpers are in Star and light off positions.
IEC_103 bus communication is using Star and light on or off modes, when the
module jumpers are in Star and light on or off positions.
In LON®bus communication the RER 103 module supports collision detection. The
Service Pin is connected via the RS-485 interface to the Neuron®chip of the device
connected to the RER 103.
Fig. 2.-1 Rear side of the RER 103 module
Table 2.-1 Settings of the jumper
Topology Light on/off Protocol
Star Off LON or IEC 60870-5-103
Star Light IEC 60870-5-103
Loop Off SPA
Loop Light Not supported

1MRS750532-MUM Product Type
7
Product Description
Sub Title
Manual Type
3 Construction
The bus connection module RER 103 consists of a printed circuit board and is
housed in a plastic case.
The incoming optical fibre is connected to the receiver input Rx and the outgoing
optical fibre to the transmitter output Tx. Special attention must be paid to the
handling, mounting, connection, etc. of optical fibres. For additional information,
see manual 1MRS752089-MUM "Plastic-core fibre-optic cables. Features and
instructions for mounting".
Fig. 3.-1 Dimensional drawing of bus connection module RER 103.
The bus connection module can be provided with connectors for two plastic fibre
cables, two glass fibre cables or one of each type. The RS-485 communication mode
is used between the RE_ 500 device and the bus connection module.
Fig. 3.-2 Routing of the optical fibres.
rer103dim
35.0
20.0
73.0
rer_ref.tif

8
1MRS750532-MUM
Bus Connection Module
Technical Description
RER 103
4 Type designation
The LON®Star-Coupler RER 111 and the IEC Star-Coupler 125 support only glass-
glass and plastic-plastic transceiver connections.
Type
designation Transmitter Receiver Ordering number
RER103 PLASTIC PLASTIC RER103-BB
RER103 PLASTIC GLASS RER103-BM
RER103 GLASS PLASTIC RER103-MB
RER103 GLASS GLASS RER103-MM
RER103-MB
ype
Optical receiver:
B = plastic fibre cable
M = glass fibre cable
Optical transmitter:
B = plastic fibre cable
M = glass fibre cable
typedes

1MRS750532-MUM Product Type
9
Product Description
Sub Title
Manual Type
5 Fibre-optic connectors and technical data
Table 5.-1 Fibre-optic connectors
Table 5.-2 Technical data
Glass fibre Plastic fibre
Cable connector ST connector Snap-in connector
Cable diameter 62.5/125 um 1 mm
Max. cable length 1000 m 10 m
Wavelength 820-900 nm 660 nm
Transmitted power -13 dBm (HFBR-1414) -13 dBm (HFBR-1521)
Auxiliary power supply Powered from host device (5V dc)
Burden ~ 0.4 W Max
Max data transfer rate 1.25 Mbps
Mechanical dimensions RER 103 Width: 35.0 mm
Height: 73.0 mm
Depth: 20.0 mm
Operating temperature range -10...55°C
Storage temperature range -40...70°C

ABB Oy
Distribution Automation
P.O. Box 699
FI-65101 Vaasa
FINLAND
Tel. [phone]
Fax. [phone]
www.abb.com/substationautomation
1MRS750532-MUM EN 01.2007