Power Supply - ESI IVX20 Installation Manual

IVX 20
Cautions
Important: This information complies with the requirements of Underwriters' Laboratories
(UL) and UL Standard 1950.
When using this telephone equipment, always exercise basic safety precautions in order to mini-
mize the risk of fire, electric shock or injury to persons. Before proceeding, please read the
following:
• The airflow vents on the IVX case must be free of obstruction for proper cooling. Similarly, do not
install the cabinet in areas of extreme heat or improper ventilation. Never insert
objects of any kind through the ventilation slots on the system cabinet; doing so may result in
contact with dangerous voltages — or cause an electrical short capable of producing fire or
shock.
• Do not use liquids or aerosols to clean any IVX equipment; rather, use a cloth that is only slightly
damp.
• The IVX telephone/voice-mail system contains no components that are serviceable by
either non-dealers or non-manufacturer technicians. All service must be referred to the dealer for
further handling.
• To reduce the risk of fire, use only 26 AWG or better telecom wire.

Power supply

Always disconnect the power supply and telephone lines from the system cabinet before
opening the case for service or component disassembly or replacement.
Heed all warnings and instructions in documentation or marked on the cabinet or
peripheral equipment.
Fuse
Contact the factory prior to attempting to replace the fuse. The fuse is located on the motherboard
directly next to the power jack marked with "F1."
Battery
"Caution: There is a danger of explosion if the onboard lithium battery is incorrectly
replaced. Replace only with Ray-O-Vac BR1225 (or equivalent). Dispose of used batter-
ies according to the battery manufacturer's instructions."
Hardware overview/installation
B.3