10.5 Specifications
Specifications of the RS 485 repeater
Specifications
Dimensions W x H x D (mm) 45 x 128 x 67
Power supply
● Nominal voltage
Ripple
24 VDC
20.4 to 28.8 VDC
Current consumption at nominal voltage
● Without load on PG/OP socket
200 mA
● Load on PG/OP socket (5 V/90 mA)
230 mA
● Load on PG/OP socket (24 V/100 mA)
200 mA
Isolation Yes, 500 VAC
Connection of fiber-optic conductors Yes, via repeater adapters
Redundancy mode No
Transmission rate (automatically detected by the
repeater)
9.6 Kbps, 19.2 Kbps, 45.45 Kbps, 93.75 Kbps,
187.5 Kbps, 500 Kbps, 1.5 Mbps, 3 Mbps,
6 Mbps, 12 Mbps
Degree of protection IP 20
Weight (including packaging) 350 g
Pin assignment of the sub-D connector (PG/OP socket)
View Pin No. Signal name Designation
1 - -
2 M24V Ground 24 V
3 RxD/TxD-P Data line B
4 RTS Request to send
5 M5V2 Data reference potential (from station)
6 P5V2 Supply plus (from station)
7 P24V 24 V
8 RxD/TxD-N Data line A
9 - -
Block diagram of the RS 485 repeater
● Bus segments 1 and 2 are electrically isolated.
● Bus segment 2 and the PG/OP socket are electrically isolated from each other.
● Signals are amplified
– Between bus segments 1 and 2
– Between PG/OP socket and bus segment 2
RS 485 repeater
10.5 Specifications
S7-400 Automation System Module Data
392 Reference Manual, Ausgabe 11/2016, A5E00850736-08
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