Appendix G; Cable And Connector Diagrams - Multitech MultiModem MT2834MR6 User Manual

Appendix G

Cable and Connector Diagrams

RS-232C Serial Cable
1
2
3
4
5
6
7
8
9
12
15
17
20
22
25
25-pin female connector (DB-25S) on back of rack
Connects to terminal or computer RS-232C interface (serial port). Gender and pin-out depends on device.
1 Frame Ground
2 Transmit Data
3 Receive Data
4 Request to Send
5 Clear to Send
6 Data Set Ready
7 Signal Ground
8 Carrier Detect
9 + Voltage Test
12 High Speed
15 Transmit Clock
17 Receive Clock
20 Data Terminal Ready
22 Ring Indicator
25 Terminal Busy
25-pin male connector (DB-25P)
1
2
3
4
5
6
7
8
9
12
15
17
20
22
25
Appendix
110