Serial Terminal (4) Straight-Through Cables (Rs-232/485); Serial Terminal (4) Loopback Signals; Connecting Serial Devices - Comtrol DeviceMaster EIP Series Hardware Installation And Configuration Manual

Connecting Serial Devices

Serial Terminal (4) Straight-Through Cables (RS-232/485)

RS-232 or RS-485 straight-through cables are used to connect modems and other DCE devices.

Serial Terminal (4) Loopback Signals

Use this drawing to wire a loopback, which is used in conjunction with
application software (Test Terminal for Windows or minicom for Linux) to test
serial ports.
Wire the terminals together to create a loopback.
• TxD to RxD
• RTS to CTS
Connecting Serial Devices
Use the following information to connect the EIP-2202 with serial terminals.
1. Connect your serial devices to the appropriate serial port on the EIP-2202 using the appropriate cable.
You can build your own cables or loopbacks using the appropriate discussions.
Note: Refer to the hardware manufacturer's installation documentation if you need help with connector pin
outs or cabling for the serial device.
2. You can refer to Network and Device LEDs
44 - Connecting Serial Devices
RS-232/422 Straight-Through Cable
TxD RTS RxD
TxD RTS RxD
or
or
TRxD- TRxD+
3 7 2
DB9
DB25 2 4 3
on Page 83 for information about the LEDs.
DeviceMaster EIP | UP Hardware Installation and Configuration Guide: 2000633 Rev. C
CTS
CTS
8
5
TxD RTS RxD CTS