Westermo TD-29 - Manual (Page 8)

8 6611-2002
Interface RS-232
9-pos. D-sub
Pin. no.
9-pos.
Screw terminal
Direction Description
5
4
3
2
1
9
8
7
6
5 6 7 8 9 4 3 2 1
1 – – –
2 4 Out RD/Received Data
3 3 In TD/Transmitted
Data
4 – – –
5 5 – SG/Signal Ground
6 – Out DSR/Data Set Ready
7 2 In RTS/Request to Send
8 1 Out CTS/Clear to Send
9 – – –
Interface RS-422/485
9-pos.
Screw
terminal
Direction
ITU-T V.11
Description
Description
5 6 7 8 9 4 3 2 1
9 In A' (R+) RS-422 Receiver
8 Out B' (R–) RS-422 Receiver
7 In/Out A (T+) RS-422/485
Transmitter/Receiver
6 In/Out B (T–) RS-422/485
Transmitter/Receiver
The definition of R+/R–, T+T– can vary between different manufacturers.
Line interface
2-pos.
screw terminal
Direction Description
1 2
1 In/Out Transmitter/Receiver
2 In/Out (2-wire)
Power connection DC
Screw no. Description Power supply
1 2
1 – 0 V DC
2 + 12–36 VDC