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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Install and Wire Telephones and Other Equipment
Page 5-561151A Power Supply
5
Connect the 1151A or 1151A2 Power Supplies
The 1151A is a standard (no battery backup) power supply unit. The 1151A2 is a
battery backup version of the 1151A. Either power supply can support 1
telephone with or without an adjunct. The maximum loop range is 250 feet (76
meters). Two modular jacks are used. Power is provided on the PHONE jack,
pins 7 and 8 (- and +, respectively).
The PHONE and LINE jacks are 8-pin female non-keyed 657-type jacks that can
accept D4, D6, and D8 modular plug cables. Figure 5-22
shows an 1151A Power
Supply. The 1151A2 looks similar.
Figure 5-22. Typical 1151A Power Supply — Front
pwr_sup1 CJL 051496