Controls; Operational Leds; Figure 3: Front Panel Led And Controls; Figure 4: Bbu Front Panel Leds - AT&T Delta OPSU/BBU Operation Manual

3.1

Controls

Two user controls are present in the form of two blue buttons on the front cover of the BBU. The
alarm-silence button will quiet the audible alarm for 24 hours. After 24 hours the alarm will
reactivate if the fault condition has not been corrected.
The Cold Start button will reconnect the battery to re-start when a new battery is installed.
Function Symbol
Alarm
Silence
Cold Start
3.2

Operational LEDs

OPSU/BBU Instalation and Operation Manual (IOM), Rev 0.0
Remove Not Do
Equipment- Telco

Figure 3: Front Panel LED and Controls

Type Location Function
Press and hold 1~2 seconds to mute alarm for 24hrs.
Front
Push To restore alarm, press and hold again for
Cover
3~5seconds.
Press and hold until all 4 LEDs light then release to
Front re-start with new battery. If held more than 5 seconds,
Push
Cover operation will be disabled. If released after 4 LEDs
light, battery operation will remain enabled.

Table 1: Customer Button Operation

Figure 4: BBU Front Panel LEDs

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