Avaya 03-300686, Установка и подключение, Страница: 73 / 156

Connecting telephones
Issue 3 January 2008 73
Connecting a typical telephone
The 302D Enhanced Attendant Console is used to describe a telephone connection typically
used with the 84xx (4-wire) telephones.
The 302D does not require auxiliary power unless it has a 26C1 DXS console or Vacuum
Fluorescent Display. The 302D attendant console always requires auxiliary (adjunct) power (-48
VDC). Power is connected to the console through Pins 7 and 8 of the information outlet. Only
three consoles can be powered by the media gateway. When possible, the primary console
should be powered from the media gateway so it has the same power failure backup as the
media gateway.
The maximum cabling distance for the console powered from the media gateway is 350 feet
(100 meters).
The general steps to connect a telephone are:
1. Choose a device to connect such as a 302D Attendant Console.
2. Choose the port circuit pack and its slot number, such as cabinet 1, slot 02.
3. Choose a port circuit on the port circuit pack, such as Port 05.
4. Install cross-connect jumpers to wire the terminal to the port circuit pack. See
Figure 34: 302D to 4-wire DCP wiring on page 74. This pinout is for the TN754C DCP
Digital Line 4-wire circuit pack.
!
CAUTION:
CAUTION:
Do not use the 329A power unit for the attendant console. Use an 1151B1,
1151B2, 1145A, or MSP-1 power unit.
5. For terminals needing adjunct power, wire -48 VDC and ground to appropriate pins on the
terminal. See Figure 34: 302D to 4-wire DCP wiring .