ABB RER 103 bus connection module

ABB RER 103 bus connection module

Product Overview

The ABB RER 103 bus connection module is used for connecting RE_500 equipment with optical fiber SPA and LON ®  The interface unit between the IEC 60870-5-103 bus can convert fiber optic signals and RS-485 electrical signals bidirectionally, and plug them into the RE_500 equipment backplane through a 9-pin D-type connector to obtain power (5V DC) from it; Supports two bus topologies: Loop and Star. The topology and line idle state (light on/off) are selected through jumpers and correspond to different protocols (SPA only has Loop+light off), LON ®  Only star shaped+light off, IEC 103 supports star shaped+light on/off); We provide two types of connector combinations (4 models): plastic fiber and glass fiber. The maximum transmission distance for glass fiber is 1000m, and for plastic fiber it is 10m. The maximum data transmission rate is 1.25 Mbps, and the working temperature range is -10... 55 ° C.

Product General Information

Core function: As a RE_500 device and fiber optic bus (SPA, LON) ®、 The interface unit of IEC 60870-5-103 realizes bidirectional signal conversion - converting the optical signal of the fiber optic bus into the RS-485 electrical signal required by RE_500 equipment, and vice versa.

Physical connection:

Insertion method: Install through the 9-pin D-type micro connector (RS-485 interface) on the RE_500 device backplane

Scope of application: Compatible with all RE_500 devices equipped with 9-pin D-type connectors

Power supply and special design:

Power source: Take power from the D-type connector of RE_500 device (5V DC)

Special components: including LON ®  Node Service Pin, connected to the Neuron of the connected device via RS-485 interface ®  chip

Principle of operation

Topology and State Selection:

Supported topologies: Loop, Star, set through jumper wires

Line idle state: You can choose "Light on" or "Light off" and set it through jumper wires

Signal transmission rules:

Ring topology: messages received from fiber optic receivers are simultaneously transmitted to fiber optic transmitters and RS-485 interfaces

Star topology: Messages received from fiber optic receivers are only transmitted to the RS-485 interface

Common rule: Messages received from the RS-485 interface are transmitted to the fiber optic transmitter in both topologies

Corresponding relationship between protocol and topology/state (Table 2-1):

Topology: Line Idle State (Light on/off) Supports Protocol

Star Off LON ®、 IEC 60870-5-103

Star on IEC 60870-5-103

Loop Off SPA

Loop On Not supported

Special feature: in LON ®  In bus communication, RER 103 supports collision detection

Structural Design (Construction)

Hardware composition: consisting of a printed circuit board and a plastic case

Fiber optic connection:

Input interface: Rx (receiving external fiber optic signals)

Output interface: Tx (sending fiber optic signals externally)

Fiber processing requirements: Follow manual 1 MRS752089-MUM《Plastic-core fibre-optic cables. Features and instructions for mounting》 Installation specifications

Connector type: Two fiber optic connector combination options are available:

Dual plastic fiber optic connector

Double glass fiber optic connector

1 plastic+1 glass fiber optic connector

Mechanical dimensions (Figure 3-1):

Width: 35.0mm

Height: 73.0mm

Depth: 20.0mm

Type designation

Model classification rules: Divided by the fiber type (plastic/glass) of the transmitter and receiver, there are a total of 4 models (Table 4-1):

Type designation, transmitter type, receiver type, ordering number

RER 103 Plastic RER103-BB Plastic

RER 103 Plastic Glass RER103-BM

RER 103 Glass Plastic RER103-MB

RER 103 Glass RER103-mM

Compatibility limitations:

LON ®  Star coupler (RER 111)

IEC star coupler (125)

The above two types of couplers only support transceiver connections of glass glass and plastic plastic, and do not support mixed types (plastic glass, glass plastic)

Fiber optic connectors and technical data

Fiber optic connector parameters (Table 5-1):

Parameter type: Glass fiber, Plastic fiber

Cable connector ST connector Snap in connector

Cable diameter 62.5/125 μ m 1 mm

Maximum cable length 1000 m 10 m

Wavelength 820-900 nm 660 nm

Transmission power -13 dBm (model HFBR-1414) -13 dBm (model HFBR-1521)

General Technical Parameters (Table 5-2):

Auxiliary power supply: provided by the host device (5V DC)

Maximum power consumption (Burden):~0.4 W

Max data transfer rate: 1.25 Mbps

Operating temperature range: -10... 55 ° C

Storage temperature range: -40... 70 ° C