Westermo TR-36 - RS-232 (DCE) Connections

12
6614-2202
Leased Line
Position Direction* Description
1 Out 4-wireTransmit
In/Out 2-wire Receive/ Transmit
2 Out 4-wireTransmit
In/Out 2-wire Receive/ Transmit
3 In 4-wire Receive
In/Out 2-wire Receive/ Transmit at Leased line PSTN backup
4 In 4-wire Receive
In/Out 2-wire Receive/ Transmit at Leased line PSTN backup
* Direction relative this unit
RS-422/485
Position Direction Description Product marking
1 In R+ (A’) Receive RS-422/485 4-wire R+
2 In R– (B’) Receive RS-422/485 4-wire R–
3
Out T+ (A) Transmit RS-422/485 4-wire
T/R+
In/Out T+ (A/A’) Transmit/Receive RS-485 2-wire
4
Out T– (B) Transmit RS-422/485 4-wire
T/R–
In/Out T+ (A/A’) Transmit/Receive RS-485 2-wire
RS-232 (DCE)
Position
D-sub Direction* Description Product marking
1 Out Data Carrier Detect (DCD) DCD
2 Out Received Data (RD) RD
3 In Transmitted Data (TD) TD
4 In Data Terminal Ready (DTR) DTR
5 – Signal Ground (SG) SG
6 Out Data Set Ready (DSR) DSR
7 In Request To Send (RTS) RTS
8 Out Clear To Send (CTS) CTS
9 Out Ring Indicator (RI) RI
* Direction relative this unit