Configuring The Qsdi Card - Nortel Circuit Card Installation Manual

Page 876 of 906
Table 274
Connector J2 pin assignments (Part 2 of 2)
Pin
Number Port
19
21
22
Note 1: In DTE mode, the signals CD, DSR, and CTS are tied to +12 volts (through a resistor)
to indicate that the QSDI port is always ready to transmit and receive data.
Note 2: In DCE mode, the signals DTR and RTS are tied to +12 volts (through a resistor) to
indicate that the QSDI port is always ready to transmit and receive data.

Configuring the QSDI card

553-3001-211 Standard 3.00
QPC841 Quad Serial Data Interface card
Signal Purpose in DTE mode
GND Ground
CD Carrier detect (Note 1
DTR Data terminal ready
Configuring the QSDI card consists of setting these option switches for each
serial port:
• Port address
• Baud rate
• DTE/DCE mode
Figure 189 on page 880
QSDI card. Instructions for setting these switches are in the section that
follows.
Address switch settings
Table 275 on page 877
Serial Data Interface card. The address select jumpers and logic on the card
address the UARTs using two pairs of addresses: 0 and 1, 2 and 3, through 15
and 16. The pairs do not need to be consecutive. Switch SW14 is used to
August 2005
Purpose in DCE mode
Ground
Carrier detect (not used)
Data terminal ready (Note 2))
shows the location of the option switches on the
lists the address switch settings for the QPC841 Quad