Maintenance - ADTRAN Total Access 908e Hardware Installation Manual

Total Access 900e Series Hardware Installation Guide
For a wallmount installation, the BBU installs on heavy plywood (3/4-inch minimum) using four
#10 x 3/4-inch pan-head wood screws. Install the BBU as follows:
Step
1 Determine the preferred unit layout to ensure cable plugs reach their designated sockets.
2 Ensuring a plumb measurement, mark where the pilot holes are to be drilled according to the
dimensions given in the documentation included with your shipment.
3 Drill all four pilot holes using a size 1/16-inch drill bit.
4 Screw in the top two pan-head screws that fit the keyhole openings. Let the head of each
screw protrude 1/16 inch from the plywood to engage the keyhole slot.
Do not let the weight of the Battery Backup Unit rest on the two keyhole screws. Maintain
support until the lower two screws are fully inserted.
5 Lift the BBU with an assistant and position to engage the screw heads. Allow the unit to slide
down until the slot end rests against the screws.
6 Insert the two lower screws through the tabs and tighten securely.
7 Use cable ties as appropriate. The battery connection from the BBU should be directly
connected to the BATT port on the rear of the chassis.

Maintenance

• The BBU does not require routine maintenance for normal operation. The life expectancy of the
BBU is 3 to 5 years on standby use when used at room temperature.
• Excessive heat decreases battery power and life. Extreme low temperature also decreases battery
capacity. Ideal ambient temperature for battery life and capacity is 20°C.
• Battery shelf life is extended in cooler temperatures.
• To order replacement batteries, reference the following part number: 1975044L1 (12 V replacement
batteries).
ADTRAN is an environmentally-friendly company. Therefore, we encourage the proper recycling and
handling of the batteries. Federal and state laws prohibit the improper disposal of all lead acid batteries.
The customer is responsible for the handling of their batteries from the day of purchase through their
ultimate disposal. For more information on battery replacement and recycling, reference ADTRAN
document number 60000120-36 online at www.adtran.com. (Enter the document number in the search
field to display a link to the document.)
64240916L1-34D
Instructions for Wall Mounting the BBU
Copyright © 2006 ADTRAN, Inc.
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Battery Backup Unit
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