3Com HomeConnect 3CP4130 User Manual page 32

Keep the unit away from radiators and heat sources. Allow 25 mm (1 inch) around the
unit or stack to provide adequate air circulation.
Install the unit in a clean area that is free from dust or extreme temperatures.
The Dual Link has been designed to be a free-standing unit. Do not place anything else
on top of the unit's case.
Allow a clearance gap of at least 50 mm (2 in) from the rear panel of the unit, to allow
for cable access.
Normal operations of this unit could be interrupted by a lightning surge. In this event,
the user must recycle the power to the unit in order to establish normal operating
conditions.
Important Safety Information
WARNING: Warnings contain directions that you must follow for your personal safety.
Follow all instructions carefully.
Please read the following information carefully and thoroughly before installing the
unit: Take exceptional care during the installation and removal of the unit.
Locate the unit close to the main socket outlet, and ensure that the main socket is
accessible.
Use the power adapter supplied with the unit to ensure compliance with national and
international safety standards. Refer to the Conformity statement for more details.
Disconnect the power adapter before moving the unit. Power can only be disconnected
from the unit by removing the power adapter from the unit or from the socket outlet.
Only connect apparatus complying with the relevant interface requirements to the ports
on this unit. The safety status of the ports on this equipment are as follows.
Ports identified by the labels XXXX and YYYY = TNV.
TNV (Telecoms Network Voltage) is a circuit which, under normal operating
conditions, carries telecommunication signals.
Ports identified by the labels AAAA and BBBB = SELV.
SELV (Safety Extra Low Voltage) is a secondary circuit which is designed and
protected so that under normal and single-fault conditions, the voltage between any two
accessible parts does not exceed a safe value (42.2 V peak or 60 V DC).
There are no user-replaceable fuses or user-serviceable parts inside the unit. If there is a
physical problem with the unit that cannot be solved with problem solving actions in
this guide, contact the 3Com reseller from whom the equipment was purchased.
If the units are stackable, only stack similar units.
WARNING: Twisted Pair RJ45 data ports. These are shielded RJ45 data sockets. They
cannot be used as telephone sockets. Only connect RJ45 data connectors to these ports.