AT&T MERLIN LEGEND Release 2.0 Equipment And Operations Manual page 126

Hardware Components
Table 2-9. Local Auxiliary Power
Number of MLX
Number of DSSs
Telephones
1
1
1
3 or
more in 1 per telephone
one carrier
CAUTION:
When additional control unit carrier power is required and the system is
backed up by an uninterruptible power supply (UPS), the carrier's
auxiliary power unit (Supplemental Power Unit 9040-2) should also be
connected to the UPS.
The total length of wire between the KS22911, L2 or 329A power supply
and the MLX telephone can be no more than 50 feet (15 meters).
Do not replace the 2-foot (61-cm) D8AC cord (packaged with the DSS)
with a longer cord. Improper operation may result.
A KS22911 kit for MLX telephones comes complete with a D6AP cord, the
KS22911, L2 power unit, and a 400B or 400B2 adapter. For analog multiline
telephones, the KS22911 kit includes the KS22911, L2 power unit, a D6AP cord,
and a Z400F adapter.
The 329A power unit does not come in a kit, so the D6AP cord and the 400B or
400B2 adapter must be ordered separately.
The MFM comes complete with a D6AP cord, the KS22911 power unit, and a
400B or 400B2 adapter. DSS
when DSSs require local power, the KS22911, L2 or 329A power unit, D6AP
cord, and 400B or 400B2 adapter must be ordered separately.
NOTE:
Telephone operation without adjuncts is guaranteed for a wiring run up to
1000 cable feet (305 meters) from the control unit.
Auxiliary Power Units
The power supply provides 54 unit loads to each carrier. If the unit load
requirement for a carrier exceeds 54 unit loads, an auxiliary power unit is
needed to allow that carrier to support an additional 27 unit loads.
2-52 Power-Related Hardware
Requirements
KS22911,L2
Number of MFMs
—
2
1 1
2 1
—
are shipped without power units. Therefore,
S
Number of
Number of 329A
Power Supplies Power Supplies
1
1
—
1 for each MI-X
telephone after the
first
2
—
—
1
—