Installation - Nortel Modular ICS 6.0 Installer's Manual

Installation

Only qualified persons should service the system.
The installation and service of this unit is to be
performed only by service personnel having appropriate
training and experience. It is critical that installers have
the necessary awareness about hazards to which they
are exposed in performing a task, and of the measures
required to minimize the danger to themselves or other
persons.
Electrical shock hazards from the telecommunication
network and AC mains are possible with this equipment.
To minimize risk to service personnel and users, the
ICS must be connected to an outlet with a third-wire
ground. In addition, all unused slots should have filler
faceplates installed and the doors should be in place at
the completion of any servicing.
Service personnel must be alert to the possibility of high
leakage currents becoming available on metal system
surfaces during power line fault events near network
lines. A risk point on the ICS is the power cord earth
ground pin. These leakage currents normally safely flow
to Protective Earth ground via the power cord.
Therefore, it is mandatory that connection to a grounded
outlet is performed first and removed last when cabling
to the unit. Specifically, operations requiring the unit to
be powered down must have the network connections
(central office lines) removed first.
P0992638 03 Modular ICS 6.0 Installer Guide