Foreign Exchange Station (Fxs) Interface Modules - Nortel Secure Router 4134 Installation Manual

Foreign Exchange Station (FXS) Interface Modules

ATTENTION
Ensure you use standard straight-through RJ11 modular telephone cables with
FXS interface modules. TIP must connect to TIP and RING must connect to
RING. FXS ground start does not work if polarity is reversed.
ATTENTION
Nortel does not support FXS port connections leaving the building. Use FXS
connections for intra-building purposes only.
NN47263-301 03.01 7 September 2009
Copyright © 2007-2008 Nortel Networks. All Rights Reserved.
Safety requirement for handling and installing modules 9
DANGER
Risk of injury by electric shock
Before working on this equipment, be aware of good safety
practices and the hazards involved with electrical circuits. Use
only power cords that have a grounding path. Ensure the switch
is properly grounded before powering on the unit.
WARNING
Risk of eye injury by laser
Fiber optic equipment can emit laser or infrared light that can
injure your eyes. Never look into an optical fiber or connector
port. Always assume that fiber optic cables are connected to a
light source.
CAUTION
If you do not install interface modules in slots, keep the metal
cover plates in place over the slots. Removing the cover plates
impedes airflow and proper cooling of the unit.
WARNING
The 2- and 4-port FXS interface modules have a ring signal
generator that is a source of hazardous voltage. Do not touch
the RJ11 port conductors, the conductors of a cable (that is,
the exposed metal ends of a cable connector) connected to
the RJ11 port, or the circuit board when the ringer is active (an
incoming call activates the ringer).
Nortel Secure Router 2330/4134
Installation — Hardware Components