Appendix A - Cabling Diagrams; Command Port Cable - Multitech MultiDSU MTT1DSU User Manual

Appendix A - Cabling Diagrams

Command Port Cable

To COMMAND
Port Jack
Line Cable
1 2 3 4 5 6 7 8
RJ48 Jack
Pin
1
2
4
5
50
PIN NO.
1
2
3
4
5
6
7
.
8
LINE
Signal Name
Receive Ring
Receive Tip
Transmit Ring
Transmit Tip
COMMAND
1 2 3 4 5 6 7 8
PIN NO.
20
Data Terminal Ready (DTR)
2 Transmit Data (BA)
3 Receive Data (BB)
4 Request To Send (RTS)
5
Clear To Send (CTS)
6 Data Set Ready (DSR)
7 Signal Ground (AB)
8 Carrier Detect (CD)
1
Chassis Ground
To DTE Device
(Terminal Device; e.g.,
ASCII Terminal or PC)