Lucent Technologies MERLIN LEGEND Release 5.0 System Planning Manual page 301

MERLIN LEGEND Communications System Release 5.0
System Planning 555-650-112
F Unit Load Calculation
Unit Load Calculation
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A unit load is a measure of power (1.9 watts) used to determine the electrical load
that the following components have on each carrier's power supply:
Telephones and Adjuncts. Only the telephones and adjuncts that connect
to the analog and digital ports on the control unit require unit load calcula-
tion. Do not include any equipment with its own power supply in the unit load
calculation.
Direct Inward Dial (DID) modules
Unit load and power requirements for a new system are computed automatically
when the equipment for the system is initially ordered. These calculations are based
on the assumption that each module is fully utilized, that is, all jacks are used.
It may be useful to obtain more accurate calculations, for example, if the modules are
not fully utilized, if there is a change in the equipment, or if you suspect that a partic-
ular carrier has more unit loads than the power supply can handle. You can calculate
the actual unit load using the worksheet and instructions in this appendix.
Issue 1
June 1997
Page F-1
F