Devicemaster 2E (Serial Terminals) Cables And Loopbacks; Serial Terminal (8) Null-Modem Cables (Rs-232); Serial Terminal (8) Null-Modem Cables (Rs-422) - Comtrol DeviceMaster PRO Installation And Configuration Manual

DeviceMaster 2E (Serial Terminals) Cables and Loopbacks

Serial Terminal (8)
Null-Modem Cables
(RS-232)
Serial Terminal (8)
Null-Modem Cables
(RS-422)
DeviceMaster Installation and Configuration Guide: 2000506 Rev. B
Use the appropriate discussion to build the following cables:
• Serial Terminal (8) Null-Modem Cables (RS-232) on Page 65
• Serial Terminal (8) Null-Modem Cables (RS-422) on Page 65
• Serial Terminal (8) Straight-Through Cables (RS-232/485) on Page 66
• 2E Loopback Signals on Page 66
An RS-232 null-modem cable is required for connecting DTE devices.
DCD DTR
DB9
DB25
An RS-422 null-modem cable is required for connecting DTE devices.
CD
DeviceMaster 2E (Serial Terminals) Cables and Loopbacks
RS-232 Null-Modem Cable
CD DSR RI DTR TxD
RI DSR RxD
1 4 9 6
8 20 22 6
RS-422 Null-Modem Cable
DSR RI DTR TxD
RxD- RxD+
DB9
2
DB25
3
RTS RxD CTS
CTS TxD RTS
2 8 3 7
3 5 2 4
RTS RxD CTS
TxD- TxD+
8 3 7
5 2 4
Connecting Serial Devices - 65