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Installation
The required HVAC capacity to compensate for a miscellaneous frame varies depending on the
customer previously installed equipment. To calculate needed HVAC capacity, determine the wattage
of the installed equipment and use the following formula: watts x 3.413 = BTUs/hr.
Lighting
Adequate lighting should be provided in the room where the equipment is to be located. Lighting
fixtures must be far enough from the equipment and cables to prevent heat damage and to allow safe
access to equipment and cables.
Relative Humidity
• Operating: 5% to 85% non-condensing (maximum absolute humidity of 0.024 kg of water per kg
of dry air)
• Short Term Operating: 5% to 90% non-condensing (maximum absolute humidity of 0.024 kg of
water per kg of dry air)
Space Requirements
This system equipment is housed in 7 foot high (44U), 24 inch wide, floor supported, upright frame
with top and side panels as well as door.
The number of frames required for an installation is described in the Initial Sales Order for that site.
The number of frames is determined by the space required by the module population of the system.
When planning the installation, be sure to take into account spare module storage, modems, terminals,
printers, cross connect panels, and all other items that might require space in a system.
Temperature Variation
Typical environmental conditions are temperature and humidity controlled. With loss of environmental
control, the equipment covered in this manual complies with these conditions:
• Operating: 5° C to 40° C (41° F to 104° F)
• Exceptional Operating Limit: -5° C to 50° C (23° F to 122° F) (no more than 96 hours duration at
extremes and at elevations less than 1800m)
• Storage: Tested to meet the storage and transportation requirements in Telcordia GR-63-CORE,
ETSI EN 300 019-2-2, T2.3
910-5681-001 Revision E, February 2014
Safety and Pre-Installation Requirements
27
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