Install and Wire Telephones
Task List: Attendant Console Procedures
SI Installation and Upgrades
517
June 2004
Auxiliary Power
CAUTION:
Do not use the 329A power unit for the attendant console.
The nonessential functions of an attendant console and its optional 26A1 or 24A1 selector console derive
their power from an auxiliary power source. Of the maximum of 27 attendant consoles, 3 of the consoles
can derive auxiliary power from the system and 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 possible nominal battery holdover of 10 minutes, the
console’s TN754C or TN413 Digital Line circuit pack should reside in an EPN’s
duplicated control cabinet.
An attendant console can also derive auxiliary power from:
•
Individual 1151A1 or 1151A2 power supply
•
258A-type adapters
•
Bulk power supplies such as the 1145B
A console’s maximum distance from its auxiliary power source is:
•
800 feet (244 m) for a 302A1
•
350 feet (106.8 m) for a 301B1 and 302C1
Table 23: Attendant Console Cabling Distances
Enhanced Attendant
Console (302C1)
24 AWG Wire
(0.5106 mm
2
)
26 AWG Wire
(0.4049 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
