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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 5-15Adjunct Power Connections
5
Local and Phantom Power
A console’s maximum distance from the system is limited. See Tab le 5- 4.
Auxiliary Power
!
CAUTION:
Do not use the 329A power unit for the attendant console.
The non-essential functions of an attendant console and its optional selector
console derive their power from an auxiliary power source. Up to 3 consoles can
use system power from through the auxiliary cable located in the trunk/auxiliary
field. Provide auxiliary power for a primary attendant console through this cable
so the console remains fully operational during short power outages.
NOTE:
For a console to realize the longest nominal battery holdover, the console’s
TN754B or TN413 Digital Line circuit pack should reside in an EPN’s
expansion control carrier.
An attendant console can also derive auxiliary power from either:
■ Individual 1151A or 1151A2 power supply
■ MSP-1 power supply
■ 258A-type adapters
■ Bulk power supplies such as the 1145A1
A console’s maximum distance from its auxiliary power source is:
■ 800 feet (244 m) for a 302A1
■ 350 feet (107 m) for a 301B1 and 302C1
Table 5-4. Attendant Console Cabling Distances
Enhanced Attendant
Console (302C1)
24 AWG Wire (0.26 mm
2
) 26 AWG Wire (0.14 mm
2
)
Feet Meters Feet Meters
With Selector Console
Phantom powered 800 244 500 152
Locally powered 5000 1524 3400 1037
Without Selector Console
Phantom powered 1400 427 900 274
Locally powered 5000 1524 3400 1037