Westermo MA-45 AC Manuel D'installation page 12

Connections
Line connection
(5-Position screw-terminal)
Direction Connection
Receiver
Receiver
Transmitter
Transmitter
The definations R+/R–, T+/T– can be various between
different manufactures.
Terminal connection (DCE)
(RS-232-C/V.24, 25-Position D-sub, female)
Direction
I
O
I
O
O
–
O
I = Input O = Output on MA-45
12
ITU-T V.11
no. Description
1 A' (R+)
2 B' (R-)
3 A (T+)
4 B (T-)
5 Shield
Connection
2
3
4
5
6
7
8
ITU-T V.24 Signal name
Code
103 TD/Transmitted data
104 RD/Received Data
105 RTS/Request To Send
106 CTS/Clear To Send
107 DSR/Data Set Ready
102 SG/Signal Ground
109 DCD/Data Carrier Detect
6045-2001