Screw Terminal (8) Loopback Signals; Connecting Serial Devices - Comtrol DeviceMaster MOD Series Hardware Installation And Configuration Manual

Screw Terminal (8)
Loopback Signals
Connecting Serial
Devices
DeviceMaster MOD | UP Hardware Installation and Configuration Guide: 2000630 Rev. B
Use the drawing below to wire a loopback, which is used in conjunction with
application software to test serial ports.
Wire the terminals together to
create a loopback.
• TxD to RxD
• RTS to CTS to RI
• DTR to CD to DSR
Use the following information to connect the DeviceMaster with 8 serial screw
terminals.
1. Connect your serial devices to the appropriate serial port on the DeviceMaster
using the appropriate cable.
Note: Refer to the hardware manufacturer's installation documentation if you
need help with connector pinouts or cabling for the serial device.
2. You can refer to Network and Device LEDs
the LEDs.

Connecting Serial Devices

CD DSR RI DTR TxD
on Page 89 for information about
Connecting Serial Devices - 57
RTS RxD CTS