Nortel Modular ICS 7.1, Инструкция по установке

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/ Safety
Modular ICS 7.1 Installer Guide N0130943 02
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
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.