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1-8
Overview
Writer:
Chris Seiter
Project:
Netelligent 2008/2016 10Base-T Repeater User Guide
Comments:
185814-003
File Name:
2000_1.doc
Last Saved On:
8/21/96 10:27 AM
Serial Port Pinouts
The repeater uses five out of the nine available pins on the serial port DB-9
connector. The following illustration shows the used pin numbers (circled), the
abbreviated names, and descriptions.
1 2
3 4 5
6 7 8 9
Name
Description
Pin No.
1
2
3
4
5
6
7
8
9
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
RI
Data carrier detect
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
Serial Port (DB-9) Pinouts
Figure 1-7
: Serial Port Pinouts
NOTE
: If you are using a modem, set it for DTR override. This ensures that the
modem can accept data.