HP Surestore 64 FW 05.01.00 and SW 07.01.00 Director 2/64 Installation Guide ( - Page 33
Power Module Assembly, Two single-phase AC power connectors. Each connector is input rated at 85
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Overview established, and establishes the connection if the destination port is available. The assembly also stores busy, source connection, and error status for each director port. The backup SBAR takes over operation if the active assembly fails, and provides the ability to maintain connectivity and data frame transmission without interruption. The transition to the backup assembly is transparent to attached devices. Each SBAR assembly consists of a card and steel carriage that mounts flush on the backplane. 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 turns ON if the assembly is operational and active, and an amber LED that turns ON if the assembly fails. The amber LED FLASHES if FRU beaconing is enabled. Power Module Assembly The power module assembly is located at the bottom rear of the director. The module provides the following. ■ Two single-phase AC power connectors. Each connector is input rated at 85 to 264 VAC. ■ A power switch (circuit breaker) that controls AC power distribution to both power supplies. The breaker is set manually, or is automatically tripped by internal software if thermal sensors indicate the director has overheated. ■ A 9-pin maintenance port that provides a connection for a local terminal or dial-in connection for a remote terminal. Director 2/64 Installation Guide 33