ADTRAN 4200659L2 User Manual
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Chapter 8. Power Loss Recovery

BATTERY BACKUP MODE

With the installation of the ADTRAN Power Supply/Battery Charger (PS/BC) and backup battery pack, the MX2800 STS-1is able to continue operation without service interruption during a power outage. This PS/BC (P/N 4175043L2) provides-48VDC to the MX2800STS-1.It receives 115 VAC through a standard plug and wall socket.

The PS/BC maintains the battery at peak charge (-48V) at all times. If AC power is lost, the unit automatically transfers power to the battery without interrupting service. When AC power returns, the unit switches back to AC power and recharges the battery. For installation instructions, refer to the guide provided with the PS/BC. SeeFigure 8-4 for an illustration of this setup.

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MX2800 STS-1

NET

Magnified View

PWR FAIL

-

RET

PWR FAIL

-

RET

AC/DC Power Supply

Battery Charging Unit

P/N 1175043L2

AC Power Input

Green

Black

Red

White

-48VDC

Backup Battery Pack

P/N 1175044L1

Battery Charger

Power Cable

Figure 8-4.Battery Backup System

The MX2800 STS-1can operate on afully-chargedbattery for four hours without recharging.

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MX2800 STS-1User Manual

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Chapter 8. Power Loss Recovery

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MX2800 STS-1User Manual

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