D-Link DP-300+ Hardware User's Manual - Serial Port

DP-300 Multiprotocol Fast Ethernet Print Server User’s Guide

Port Pinouts

11

Serial Port

The table below shows the pinout of the print server’s 9-pin RS-232 serial port.  The print server’s

serial port is a DTE (Data Terminal Equipment) port, and should be connected to a DCE (Data

Communications Equipment) serial port on your printer.  Consult your printer’s documentation

for detailed information on how to connect the print server to your printer.

9-pin

Signal

Function

1

DCD

Data Carrier Detected (DCE

Æ

DTE)

2

RXD

Received Data (DCE

Æ

DTE)

3

TXD

Transmitted Data (DTE

Æ

DCE)

4

DTR

Data Terminal Ready (DTE

Æ

DCE)

5

Gnd

Signal Ground

6

DSR

Data Set Ready (DCE

Æ

DTE)

7

RTS

Request to Send (DTE

Æ

DCE)

8

CTS

Clear to Send (DCE

Æ

DTE)

9

RI

Ring Indicator (DCE

Æ

DTE)