Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 369

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
F Unit Load Calculation
Unit Load Worksheet
Equipment
Optional Equipment
Direct Station Selector
General-Purpose Adapter
Hands-Free Unit
Headset Adapter
EICON board
Total Actual Unit Load:
1 Unit loads are computed for each trunk for trunk-type network access lines.
2 The MFM has its own wall power unit located at the telephone and, therefore, is not added to
the unit load calculation.
3 Up to two DSSs (one DSS for each MLX-28D or MLX-20L) can be powered from each control
unit carrier. For example, a three-carrier system can have six system operator positions, each
with one DSS powered from the control unit.
7. Try to exchange modules between carriers to reduce the unit loads to 96 (if a 391C1
power supply is installed), 72 (if a 391A3 power supply is installed), or 48 (if a 391A1 or
391A2 power supply is installed). (Remember that the 100D, 800 NI-BRI, 400 (LS), 400
GS/LS, 800 (LS), and 800 GS/LS modules have unit loads of 0.0.) Repeat Steps 1
through 6 to recalculate unit loads for the new configuration.
Empty slots are not permitted between modules.
If the exchange reduces the unit load to below the rated maximum for your
power supply module, no further calculation is required.
If your system has a 391A1 or 391A2 power supply and the exchange does
not reduce the unit load to 48, replace the 391A1 or 391A2 power supply
with a 391C1 power supply. If your system has a 391A3 power supply and
the exchange does not reduce the unit load to 72, replace the 391A3 power
supply with a 391C1 power supply. If your system has a 391C1 power
supply and the exchange does not reduce the unit load to 96, install wall
power units for the appropriate number of telephones to reduce the unit
load to 96.
Qty x Unit Load
Hybrid/PBX
or Modified
2
3
Key
0.7 0.9
0.8 1.0
0.8 1.0
0.8 1.0
0.0 0.0
Issue 1
April 1999
F-7
= Total