Computer Hardware Installation Guide

Configuring the QSDI paddle board 825
Table 320
Connectors J1, J2, J3, and J4 pin assignments
Pin #
Signal
Purpose in DTE mode
Purpose in DCE mode
1
DCD Data Carrier detect (Note 1) Data Carrier detect (Not used)
2
RD Transmitted data Received data
3
TD Received data Transmitted data
4
DTR Data terminal ready Data terminal ready (Note 2)
5
GND Signal Ground Signal Ground
6
DSR Data set ready (Note 1) Data set ready
7
RTS Request to send (Not Used) Request to send (Note 2)
8
CTS Clear to send (Note 1) Clear to send
Note 1: In DTE mode the signals CD, DSR, and CTS are tied to +12 volts to signify that the port on
the QSDI paddle board is always ready to transmit and receive data. This mode is set to connect
to a terminal device (DTE).
Note 2: In DCE mode the signals DTR and RTS are tied to +12 volts to signify that the port on the
QSDI paddle board is always ready to transmit and receive data. This mode is set to connect
to a modem device (DCE).
Configuring the QSDI paddle board
Configuring the QSDI paddle board to work in a system consists of setting
these option switches for each serial port:
•
Baud rate
•
Port address
•
DTE/DCE mode
The QSDI paddle board has fourteen option switches, SW2–13, SW15-16.
Figure 270 "NT8D41BA QSDI paddle board" (page 823) identifies the
location of option switches on the QSDI paddle board. Learn how to set
these switches in the following sections.
Once the board has been installed, the system software must be configured
to recognize it. Instructions for doing this are found in the section titled
"Software service changes" (page 828).
Option switch settings
Baud rate
Switches SW13, SW10, SW11, and SW12 determine the baud rate for ports
1, 2, 3, and 4, respectively. See the settings for these switches in Table 321
"NT8D41BA baud rate switch settings" (page 826).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.