4.1
Connecting The T1 Trunk
Terminate the end of the T1 trunk with a miniature 8-pin modular plug, and plug it into the main jack on the front
edge of the DXPT1 board.
The DXPT1 board contains a built-in CSU that protects the DXP Plus from voltage surges, provides transmission
drive up to 6,000 feet, and performs diagnostic tests for the network. Therefore, a customer-supplied CSU is not
necessary unless your customer requires this addition.
If a direct connection to a repeater is within a few hundred feet, the transmit signal from the DXPT1 board may
overdrive the repeater. Repeaters normally operate best with -7.5 to -23 dB input signals. Arrange LIU switches 2,
3, and 4 to set the transmit signal level (0 dB is default).
IMPORTANT CAUTION
To help ensure that external over-voltage surges do not damage the system, Comdial engineers suggest
that you install a properly-grounded gas discharge tube or a similar primary protection device on the T1
trunk where it enters the building. If the site includes a network interface box, verify that there is standard
lightning protection installed externally to the box on its network side. Primary protection where the cable
enters the building is necessary to prevent a fire hazard inside the building.
IMI89–193
Installing The DXPT1 Line Board
12 – Installing The DXPT1 Line Board
Содержание DXP Plus Series
Страница 1: ...Digital Communications System R ...
Страница 363: ...Automatic Call Distributor Technical Manual R QuickQ DXP ...
Страница 424: ...Automatic Call Distributor System Manager s Guide R QuickQ DXP ...
Страница 500: ...Wrap up Time 1 6 Wrapping Up A Call 4 3 Z Zoom Box A 2 GCA70 271 Index I 3 ...
Страница 628: ...Interconnecting The VMI X Installing And Programming For ExecuMail IMI89 206 Installing And Programming For ExecuMail 5 ...
Страница 677: ...Connecting The Equipment Installing And Programming The OPX X IMI89 209 Installing The OPX X 7 ...
Страница 728: ...DP I I I I and FX Series Digital Communications Systems Understanding The Visual Man Machine Interface COMDlA ...
Страница 1112: ...9 08 8 90 1 13 4 78 3 94 UNIS029 TAB003 PLS page 6 GCA40 130 DXP Plus General Description 11B Telephone Features ...