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Serial terminal (4) loopback signals, Connecting serial devices, Serial terminals (8) - 2e – Comtrol UP DeviceMaster Installation User Manual

Page 49: Serial terminal (8) connectors, Als (4). see

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Hardware Installation and Configuration Guide: 2000451 Rev. J

Connecting Serial Devices - 49

Connecting Serial Devices

Serial Terminal (4)
Loopback Signals

Use this drawing 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

Connecting Serial
Devices

Use the following information to connect the DeviceMaster UP 2-port 1E with
serial terminals.

1.

Connect your serial devices to the appropriate serial port on the DeviceMaster
UP 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 pinouts or cabling for the serial device.

2.

You can refer to

Network and Device LEDs

on Page 84 for information about

the LEDs.

Serial Terminals (8) - 2E

This subsection discusses the following topics for the DeviceMaster UP 2-port 2E
with serial terminals (8).

Serial Terminal (8) Connectors

on Page 49

Serial Terminal (8) Null-Modem Cables (RS-232)

on Page 50

Serial Terminal (8) Null-Modem Cables (RS-422)

on Page 51

Serial Terminal (8) Straight-Through Cables (RS-232/485)

on Page 51

Serial Terminal (8) Loopback Signals

on Page 51

Connecting Serial Devices

on Page 52

Serial Terminal (8)
Connectors

Use the following drawings or table for signal information. The signals for
SERIAL2 are the same as SERIAL1.

TxD

RxD

RTS

CTS

RS-232†

RS-422

RS-485 Full-Duplex

RS-485 Half-Duplex

CD

DSR

RI

TxD

RTS

RxD

CTS

DTR

TxD-

TxD+

RxD-

RxD+

TRxD-

TRxD+

† RS­232 ground must be connected to the appropriate signal ground terminal.