Options 51C, 61C, 81, And 81C Terminal And Modem Connections - Nortel Meridian 1 Manual

B-2 Appendix B: Terminal and modem connections
553-3001-250 Standard 14.00 August 1996
When upgrading a dual CPU system, you may want to temporarily install
additional terminals for split mode monitoring, or programming, or both.
Note: In options 61 and 71, SDI cards can be temporarily installed in
CPU slots during a software conversion. In options 51C, 61C, 81, and
81C, I/O ports on the call processing (CP) cards can be used to monitor
CPU operations. These configurations should not be used as the
permanent I/O connection for the system because the port is only active
when the associated CPU, or CPU, is active.
For a modem connection to the Meridian 1, Bell 103/212 compatible dumb
modems are recommended for all systems, except options 51C, 61C, 81, and
81C.
If a Hayes command-set compatible (smart) modem is used at the
Meridian 1 end, you must select the dumb mode of operation,
Command Recognition OFF and Command Echo OFF, before
connecting the modem to the SDI port. Refer to the modem
instructions to set the mode of operation.
If a printer is connected to an SDI port (locally or remotely), you must disable
XON/XOFF flow control, so no characters or signals are sent to the port, to
avoid a "ping-pong" effect.
Note: For information specific to options 51C, 61C, 81, and 81C, see
"Options 51C, 61C, 81, and 81C terminal and modem connections" on
page B-8.
1 Install and cable a system terminal or a modem:
• Unpack the terminal/modem and place it in its assigned location.
• Install the terminal/modem according to the manufacturer's
instructions.
• Connect an NT8D95AJ cable to a matching connector on the
terminal/modem.
Note: At a remote location, install and connect a compatible modem and
terminal. Connect the NT8D95AJ cable to the modem.
CAUTION