D-Link DP-300 - Serial Port Pinout

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)