Installation guide

Battery Backup Unit Total Access 900e Series Hardware Installation Guide

5. BATTERY BACKUP UNIT

The ADTRAN battery backup unit (BBU) is an optional device designed as a backup DC power supply for

the Total Access 900e Series.

Total Access 908e BBU (P/N 1200641L1)

The BBU connects to the Total Access 908e through a 2-foot charge/discharge, 2-conductor wire with a

keyed modular plug (included with the BBU). The 1200641L1 BBU is a low profile wallmount

configuration. The BBU is not rack mountable.

Features of the BBU, P/N 1200641L1, include the following:

• No-spill battery design

• Compact wallmount box

• 7 AHR battery (up to 8 hours of backup, depending on load)

• Modular plug (provides quick and easy installation)

• All mounting hardware included

Total Access 916e/924e BBU (P/N 1175044L1/L2)

The BBU connects to the Total Access 916e/924e through a 6-foot charge/discharge, 2-conductor wire

with a keyed modular plug (included with the BBU). The 1175044L1 BBU is a low profile wallmount

configuration. It can be rack mounted with the appropriate 19-inch (P/N 1175047L1) or 23-inch

(P/N 1175048L1) rackmount adapter brackets. The 1175044L2 is an equivalent BBU with a hinged front

access door.

Features of the BBU, P/N 1175044L1/L2, include the following:

• No-spill battery design

• Compact wallmount or rackmount box

• Double BBU rack mounting available

• 7 Ahr battery (up to 8 hours of backup, depending on load)

• Modular plug (provides quick and easy installation)

• All mounting hardware included

Unpack and Inspect the BBU

After unpacking the BBU unit, inspect it for damage. If damage is noted, file a claim with the carrier; then

contact ADTRAN Customer Service.

Removing the BBU covers could allow batteries to fall out.

The BBU (P/N 1175044L1/L2) weighs in excess of 30 pounds. Arrange for assistance

when handling the BBU for mounting.