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Fan Shelf
See the Controller Office Alarm Connections section for Office Alarm detail.
A Feed (-48V)
(-48V) RTN
B Feed (-48V)
Frame Ground
Note: Returns for A and B feeds are shared on the -48V RTN terminal.
Vertical Spacing, Airflow, Baffles, and Fan Shelves
Overview
The Converter System has been designed for mounting in relay racks or in equipment cabinets.
•
It is designed for use with user provided vertical airflow cooling of at least 175 linear feet per minute over the
entire flow cross-section of the shelf.
•
Equipment may be placed on top of the CPS2400U provided airflow is not impeded or sufficient spacing is
provided.
Outdoor Cabinet Application
The Converter System is rated to work to 65°C in stacks of two shelves in outdoor cabinets without
baffles.
Note: where the air entering the second shelf may be heated above 65C inlet temperature, additional
airflow beyond the minimum 175 linear feet per minute is required. These cases require an engineered
solution.
Central Office Application
Converter Shelf Stacks (Figure 2) are rated to operate in 55°C environments.
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Up to 2 Converter Shelf Stacks may be mounted in a single frame.
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No vertical space between:
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Fan Shelves
•
Fan Shelf and Converter Shelf
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Converter Shelves
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A 3 inch minimum horizontal space is required to the rear of the baffle. Specific testing is required If the space
available is less than 3 inches.
•
Slot covers must be installed used on all empty Converter slots when more than one Converter shelf is being
cooled by a Fan Shelf. These covers prevent cooling air from bypassing the Converters. See Figure 29.
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Power Input Connector
Figure 28 Fan Shelf Connections
Office Alarm Connector
P6 10/110 Base-T
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