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N0008587 01
Safety
Additional Safety Information
The following interfaces are classified as Telecommunication Network Voltage (TNV) circuits, and may be
connected to exposed plant:
• DTM interface
• WAN interface
• TCM Isolator
WARNING
This is a class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
The above warning is inserted for regulatory reasons. If any customer believes that
they have an interference problem, either because their Nortel Networks product
seems to cause interference or suffers from interference, they should contact their
distributor immediately. The distributor will assist with a remedy for any problems
and, if necessary, will have full support from Nortel Networks.
WARNING!
Only qualified service personnel may install this equipment. The instructions in this
manual are intended for use by qualified service personnel only.
Risk of shock.
Ensure the system is unplugged from the power socket and that any telephone or
network cables are unplugged before opening the system.
Read and follow installation instructions carefully
Only qualified persons should service the system.
The installation and service of this hardware is to be performed only by service
personnel having appropriate training and experience necessary to be aware of
hazards to which they are exposed in performing a task and of measures 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
system must be connected to an outlet with a third-wire Earth.
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.
These leakage currents normally safely flow to Protective Earth via the power cord.
Therefore, it is mandatory that connection to an earthed 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 (exchange lines) removed first.
