Power Supplies And Mlx, Etr, And Mls Telephones - Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
2 Control Unit Configuration
Planning Module Placement
Table 2-1.
Power Supply
391A1
391A2
391A3
391C1
2. For each line/trunk and extension jack of each module, write the type of
jack ( = extension; and
keeping in mind the following:
NOTES:

Power Supplies and MLX, ETR, and MLS Telephones

Maximum No. of MLX, ETR, or MLS
Telephones per Carrier
48
48
72
96
In Release 6.0 or later, if the switch is part of a private network and a
tandem PRI trunk (programmed as Legend-PBX or Legend-NTWK) has
some B-channels that would bring the total number of trunks over the
system limit of 80, the 100D module for that tandem PRI trunk should be
placed in the last slot in the carrier. In this manner, the 100D module will
contain the last lines in the system, and any B-channel over the 80 line/
trunk limit will be ignored. However, the D-channel will still function even
if the 100D module exceeds the line capacity of the system. The number
of B-channels must be the same on each networked system. See the
Network Reference for additional information.
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.
If the system has one 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
can be connected to a PFT jack on a 400 (LS), 400 GS/LS/TTR, 800
(LS), 800 GS/LS, 800 GS/LS-ID, 408 (LS-ATL), 408 GS/LS-ATL, 408
GS/LS-MLX, or 408 GS/LS-ID-MLX module. Touch-tone PFT telephones
must be connected to jacks with touch-tone lines/trunks.
= line/trunk) and the associated logical ID,
in the modules. A PFT telephone
Issue 1
April 1999
2-6