Serial Port - D-Link DP-300+ User Manual

25-pin Centronics
10 10
11 11
12 12
13 13
14 14
15 32
16 31
17 36
18-25 16, 17, 19-30

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
1 DCD
2 RXD
3 TXD
4 DTR
5 Gnd
6 DSR
7 RTS
8 CTS
9 RI
Signal
nAck
Busy
PError
Select
nAutoFd
nFault
nInit
nSelectIn
Ground
Function
Data Carrier Detected (DCEàDTE)
Received Data (DCEàDTE)
Transmitted Data (DTEàDCE)
Data Terminal Ready (DTEàDCE)
Signal Ground
Data Set Ready (DCEàDTE)
Request to Send (DTEàDCE)
Clear to Send (DCEàDTE)
Ring Indicator (DCEàDTE)
Source
Printer
Printer
Printer
Printer
Host
Printer
Host
Host
Port Pinouts