Nortel Passport 15000, Hardware Installation And Maintenance, Page: 184 / 874

184 Chapter 13 Peripheral equipment
241-1501-240 5.2S2
Modem installation
Install a modem to enable a remote user to connect to the Passport switch for
entering and receiving local operator software commands.
• “Prerequisites to modem installation” (page 184)
• “Modem installation task flow” (page 185)
Prerequisites to modem installation
• An asynchronous modem can be connected to the local operator port on
a Passport control processor (CP). The optional connection enables a
remote user to dial up to the Passport to enter and receive local operator
software commands. You must supply the modem and follow all
instructions in this section.
• There is no software configuration of the Passport to enable using a
modem connected to the CP. The hardware setup of the Passport requires
a specific modem setup.
• Mount the modem according to its manufacturer’s instructions. Ensure
that the distance between the modem and the CP of the Passport is within
the modem’s recommended transmission distances in either direction of
the connection path.
CAUTION
Risk of service loss by leaving a modem live
The operator port to which you connect the modem is
intended for temporary access. Use the modem to
communicate with the Passport only for as long as you
need to, then drop the dialup. You can leave the hardware
and cables in place, but the link must not be left live
between login sessions.
CAUTION
Risk of service loss by incorrectly setting a modem
Unless the hardware settings, the custom cable, and the
software configuration of a modem is done correctly, the
CP may crash and fail to reboot.