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Definitions of signals and direction – Perle Systems Speed LE 1P User Manual

Page 32

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Definitions of Signals and Direction

Page 32

Definitions of Signals and Direction

EIA-232

Direction

Description

RI

In

Ring Indicator

DCD

In

Data Carrier Detect

RTS

Out

Request To Send

DSR

In

Data Set Ready

TXD

Out

Transmit Data

RXD

In

Receive Data

S-GND

Signal Ground

CTS

In

Clear to Send

DTR

Out

Data Terminal Ready

C-GND

Chassis Ground

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