Nortel Networks 1000 - Manual (Page 734)

734 NT8D41BA Quad Serial Data Interface Paddle Board
Table 291
Connectors J1, J2, J3, and J4 pin assignments
Pin # Signal Purpose in DTE mode Purpose in DCE mode
1 D
C
D Data Carrier detect (Note 1) Data Carrier detect (Not used)
2 R
D Transmitted data Received data
3 T
D
Received data Transmitted data
4 D
T
R
Data terminal ready Data terminal ready (Note 2)
5 G
N
D
Signal Ground Signal Ground
6 D
S
R
Data set ready (Note 1) Data set ready
7 R
T
S
Request to send (Not Used) Request to send (Note 2)
8 C
T
S
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 Meridian 1 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 249 "NT8D41BA QSDI paddle board" (page 731) identifies the
location of option switches on the QSDI paddle board. Learn how to set
these switches in the following sections.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.