Справочник Пользователя для Lucent Technologies Release 6

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 5-15

Adjunct Power Connections

Local and Phantom Power

A console’s maximum distance from the system is limited. See

Table 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

)

26 AWG Wire (0.14 mm

)

Feet Meters

Feet

Meters

With Selector Console

Phantom powered

800

244

500

152

Locally powered

5000

1524

3400

1037

Without Selector Console