Chapter 1: Prepare the Site
14 3Com X Family Hardware Installation Guide
WARNING: Only trained and qualified personnel should install, replace, or
service this equipment. Disconnect the system before servicing it. There are no
user-replaceable parts in the chassis.
This product requires short-circuit (overcurrent) protection to be provided as part
of the building installation. Install only in accordance with national and local
wiring regulations.
Do not operate the system unless top cover is in place.
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line
cord.
The battery in this unit is not replaceable. There is a risk of explosion if the
battery is replaced by an incorrect type. Dispose of used batteries according to
the instructions.
This equipment is to be installed and maintained by service personnel only as
defined by AS/NZS 3260 Clause 1.2.14.3 Service Personnel.
This unit is intended for installation in restricted access areas only.
When connecting equipment to IT power distributions, Phase to phase voltage
must not exceed 240 V.
The ports on the front of the 3Com X Family devices are Safety Extra-Low Voltage
(SELV) circuits. SELV circuits should only be connected to other SELV circuits.
Do not work on the system or connect or disconnect cables during periods of
lightning activity.
To prevent the unit from overheating, do not operate it in an area that exceeds the
maximum recommended ambient temperature of 104° F (40° C). To prevent airflow
restriction, allow at least 3 inches (7.6 cm) of clearance around the ventilation
openings.
