HP Surestore 64 Planning Guide - Page 37

Backplane, operational backup assembly. The amber LED blinks if FRU beaconing is enabled.

Page 37 highlights

Each SBAR assembly mounts flush on the backplane, and the FRU is comprised of the card and a steel carriage. The carriage provides protection for the back of the card, distributes cooling airflow, and assists in aligning the assembly during installation. The rear of the carriage contains a green LED that illuminates if the assembly is operational and active, and an amber LED that illuminates if the assembly fails. Both LEDs are extinguished on an operational backup assembly. The amber LED blinks if FRU beaconing is enabled. Backplane The backplane provides 48 VDC power distribution and connections for all logic cards. The backplane is a nonconcurrent FRU. The director must be powered off prior to FRU removal and replacement. Director Description 23 Director Hardware Description

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Director Description
23
Director Hardware
Description
Each SBAR assembly mounts flush on the backplane, and the FRU is comprised of the card
and a steel carriage. The carriage provides protection for the back of the card, distributes
cooling airflow, and assists in aligning the assembly during installation. The rear of the
carriage contains a green LED that illuminates if the assembly is operational and active,
and an amber LED that illuminates if the assembly fails. Both LEDs are extinguished on an
operational backup assembly. The amber LED blinks if FRU beaconing is enabled.
Backplane
The backplane provides 48 VDC power distribution and connections for all logic cards. The
backplane is a nonconcurrent FRU. The director must be powered off prior to FRU
removal and replacement.