Battery Installation And Test - ADTRAN Total Access Fiber Node Cabinet System Manual

Fiber Node Cabinet System Manual

Battery Installation and Test

Electrical and Explosion Hazard. Batteries can be a lethal source of
electrical power under certain conditions. Do not touch the connector
posts. Do not lift cabinet with batteries installed.
Prior to connecting the batteries to the rectifier, ensure that all AC and DC
circuit breakers are in the OFF position.
Follow all battery manufacturers and locally approved safety procedures
and wear appropriate safety gear when handling the batteries and
connecting them to the string.
Use care when handling the batteries and connecting them to the string. Two people should lift and place
batteries. Wear heavy gloves and safety glasses while lifting the batteries. Do not wear rings, metallic wrist
bands, or bracelets when working on batteries. Do not allow metal objects to rest on the batteries or to fall
across the terminals. Handle each battery only by its lifting slot or an appropriate lifting tool, keeping
hands well away from the connector pins.
Refer to the Battery document for detailed battery installation arrangement and wiring. Cabinet design
includes an isolated and vented battery compartment beneath the electronics chamber. The FNC system
requires two strings of batteries. Each battery string consists of 15 series connected 3.6-volt rechargeable
cells. A single battery string provides 150 Ahr of service. Following connection of all cells in a string,
verify correct voltage with an appropriate meter. The battery is a positive ground system; battery string
voltage should measure –54 VDC.
The battery leads from the power supply can now be connected to the battery terminals. Battery leads are
labeled with positive (+) and negative (–) identifiers.
Power up the rectifier by first turning on the main AC breaker in the load center. Then turn on the
breaker(s) that supply power to the rectifier shelf.
The power system includes a battery charge temperature compensation module, therefore the output
voltage must be adjusted to the sense calibration voltage of the temperature compensation module. Refer to
the Valere power supply operating instructions for detailed procedures for this operation.
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WARNING
WARNING
NOTE
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