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Overview
Although most OCMs are pre-assembled, tested, and ready to use, this chapter takes you step-by-
step through the process of installing your shelves. If this is your first introduction to the OCM,
review Chapter 1, System Description for a summary of the OCM key features and help understand
the process of installing and using it on your network.
Unpacking
Inspect the OCM for damage; if any is observed, notify the shipper immediately. Save the box and
packing material; you can use it to reship the unit, if necessary.
Location
Locate the shelf in a ventilated area where the ambient temperature does not exceed 122×F (50×C).
Do not install the shelf directly above equipment that generates a large amount of heat (such as
power supplies).
Load Number
When configuring the shelf, ensure that the total load of all the modules does not exceed the
capacity of the power supply (s). The Load Number is a tool which enables you to calculate the
power consumption of the system when it is configured. The Load Number is normalized to the
number of slots in a shelf (16). For example, in a single shelf, the sum of the Load Numbers should
not exceed 16, and in a multiple shelf, the sum should not exceed 32.
Each power supply is designed to power plug-in modules whose Load Numbers total up to no more
than 16. Each shelf is designed to house plug-in modules whose Load Numbers total up to no more
than 16. Exceeding these Load Number requirements, violates GDC warranties with regard to
performance of that system.
The Load Number for each module used in the OCM, is listed in Technical Characteristics table for
each module.
036R340-000
Issue 16
Chapter 2:
Office Connunications Manager OCM-1000/OCM-2000
Installation & Operation
Shelf Installation
2-1
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