Lucent Technologies MERLIN LEGEND Release 5.0 System Planning Manual page 55

MERLIN LEGEND Communications System Release 5.0
System Planning 555-650-112
2 Control Unit Configuration
Planning Module Placement
NOTE: NOTE: NOTE:
Due to limitations in the 391A, 391A1, and 391A2 power supplies, the
number of 800 NI-BRI modules plus 100D modules in a single carrier
cannot exceed three. If you have more than three modules, you must install
the additional modules in an expansion carrier. This restriction does not
apply to the 391A3 power supply.
2. For each line/trunk and extension jack on each module, write the type of
jack (X
keeping in mind the following:
NOTES:
1. If the system will have 1 or more PFT telephones (maximum: 20), indicate
on the Control Unit Diagram the modules that will have PFT telephones
connected to their PFT jacks; write PFT in the modules. A PFT telephone
can be connected to a PFT jack on a 400, 400 GS/LS/TTR, 800, 800
GS/LS, 800 GS/LS-ID, 408, 408 GS/LS, or 408 GS/LS-MLX module.
Touch-tone PFT telephones must be connected to jacks with touch-tone
lines/trunks.
2. You need a ground-start button on a PFT telephone connected to a
ground-start trunk.
=
extension; and L/T = line/trunk) and the associated logical ID,
Each 100D module is assigned 24 logical IDs, even though the
module has only 1 physical trunk jack.
Each 800 NI-BRI module is assigned 2 logical IDs per physical trunk
jack for a total of 16 logical IDs.
The 008 OPT module is assigned 12 logical IDs, even though the
module has only 8 physical extension jacks.
Power-failure transfer (PFT) jacks are not assigned logical IDs.
Issue 1
June 1997
Page 2-5