Meridian Data 16i manual Subsystem Components, Backplane Board

Chapter 1 Introduction

•BBU module: An optional BBU module sustains unfinished writes cached in memory during a power

outage in order to prevent data loss. (See Section 0)

•PSU modules: The hot-swappable PSUs receive single- phase power and deliver +5V, +12V, and +3.3V power to the subsystem. A power switch is located on each PSU to turn the system on and off. (See Section 0)

•Cooling modules: The redundant cooling modules ventilate the subsystem to maintain a cooling airflow across the subsystem. (See Section 0)

1.1.2.6Backplane Board

An internal backplane board separates the front and rear sections of the SecurStor 16I. The PCB board consists of traces for logic level signals and low voltage power paths. It contains no user-serviceable components.

WARNING!

When inserting a removable module, DO NOT USE EXCESSIVE FORCE! Forcing or slamming a module can damage the pins on the module connectors either on the module itself or on the backplane. Gently push the module until it reaches the end of module slot. Feel the contact resistance and use slightly more pressure to ensure the module connectors are correctly mated. If the module comes with ejection levers or retention screws, use them to secure the module.

1.2 Subsystem Components

The SecurStor 16I houses many active components and most of them can be accessed through either the front or rear panel. The modular design of the active components facilitates their easy installation and removal. Hot-swap mechanisms are incorporated to eliminate power surges and signal glitches that might occur while removing or installing these modules.

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