Mitel Panther II 820 System Manual page 250

Panther II 820/1032/2064-200
Power Fail Transfer Unit Installation
6.13 A Power Fail Transfer unit transfers up to four outside lines to four standard
telephone sets (2500 or single line sets) in the event of a power failure at the KSU. A
number of Power Fail Transfer units can be cascaded to allow the maximum number of
C.O. lines to be switched to the corresponding number of standard telephone sets; i.e.,
two Power Fail Transfer units would be required to switch the eight C.O. lines of a
Panther II 820 system; three Power Fail Transfer units would be required to switch the
10 CO. lines of a Panther II 1032 system, and six Power Fail Transfer units would be
required to switch the 20 C.O. lines of a Panther II 2064 system. (Three units
maximum per KSU). This is shown in Figures 6-12 through 6-14 respectively.
6.14
The incoming telephone lines, and the KSU are connected to the Power Fail
Transfer unit via two 50-pin-to-Modular Adapters (MOD V SM 6/2). To install one or
more Power Fail Transfer units, refer to Figures 6-12 through 6-14 and complete the
following instructions:
Step 1. Mount the Power Fail Transfer unit(s) in accordance with the
instructions given in 'Mounting System Components'.
Step 2. If the system is operational, remove the power from the KSU by
unplugging the ac power cord.
Step 3.
Connect the 50-pin female connector carrying the incoming lines to 50-
pin-to-Modular Adapter 1.
Step 4.
Connect a 25-pair cable, having a 50-pin female connector at each end,
between 50-pin-to-Modular Adapter 2 and the KSU jack assigned to
C.O. lines 1 through 8 (Panther II 820 system), C.O. lines 1 through 10
(Panther II 1032 system) or C.O. lines 11 through 20 (Panther II 2064
KSU).
Step 5. Using modular cords, complete the connections shown in Figures 6- 12
to Figure 6- 14.
Installation and Commissioning
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