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
9
5
4
3
2
1
8
7
6
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