Operating instructions

6. INSTALLATION

6.6 Battery Installation and Wiring

WHENEVER INSTALLING OR REPLACING BATTERIES, DO NOT ALLOW LIVE BAT-

TERY WIRES TO CONTACT THE ENCLOSURE OR THE POWER MODULE CHASSIS.

Insulate any exposed wire ends with electrical tape. Shorting battery wires could result in a

fire or possible explosion. Make sure that the power module’s battery circuit is deactivated

by switching the battery breaker OFF, or removing the battery fuse.

WEAR EYE PROTECTION WHENEVER WORKING WITH BATTERIES.

MAKE SURE THAT ALL BATTERY TERMINAL CONNECTIONS ARE TIGHT. Terminal

connectors should be torqued to 75 inch-pounds at installation and then re-torqued to 50 inch-

pounds during routine maintenance. Loose connections will cause the unit to operate

improperly. Use an approved battery terminal coating such as NCP-2 to protect the

terminals. If custom battery cables are made, they should be #6 AWG or larger and as short

as practical. Battery terminals should be checked for corrosion and cleaned if necessary.

CHECK BATTERY POLARITY. Polarity identifications are clearly marked at the module's

battery connector. A single battery connected backwards may go unnoticed until it is required

to perform. In the event polarity becomes accidently reversed at the batteries, the battery

circuit breaker will trip to protect the module.

IN ADDITION TO VOLTAGE CHECKS, ALWAYS INSPECT BATTERIES FOR SIGNS OF

CRACKS, LEAKS OR SWELLING. If a battery has one or more defective (shorted or high

impedance) cells, erratic operation or failure to provide standby power will result.

ALWAYS USE NEW BATTERIES WHEN FIRST INSTALLING A POWER SUPPLY.

VERIFY THAT THEY ARE THE SAME TYPE OF BATTERY WITH AN IDENTICAL DATE

CODE.

NEVER INSTALL OLD OR UNTESTED BATTERIES.

Whenever batteries have been in storage for more than 3 months, they should be recharged

for (at least) 24 hours and checked under load prior to installation. Batteries with date codes

older than 2 years should not be used unless thoroughly recharged and tested.

810A

BATTERY TYPE: "A"

("FLOAT" Service Battery

containing gelled electrolyte

acid.) Used for majority of

Cable TV applications due

to its exceptional service life.

YEAR: 1998

MONTH: (OCT) 10

Typical Battery Date Code Location and Identification