Specifications

DXP Correspondence Manual
introducing The DXP
Line Boards-T1 Board
The Tl board (DXPTl) provides 8, 16, or 24 channels of voice
transmissions over a single four-wire cable using multiplexing
techniques. You can install a maximum of four Tl boards, two in each
cabinet, but you can only install a Tl board in the second line slot or
the fifth universal slot of the main cabinet, or in universal slot 8 or 12
in the expansion cabinet. You can configure the Tl board with a
combination of loopstart, ground start, DID, and E & M Tie lines.
When you take the DXP classroom training, you’ll get a more
in-depth overview of the Tl board. For more information on the Tl
board, see IMI89-141.
Line Boards-DID Board
The DID board (DXPCO-DD8, DD4) lets, stations have their own
telephone number without having a separate line dedicated to that
station. The basic idea of DID is this: the central office sends digits to
the DXP, which interprets the digits and routes the call to the
appropriate station. For example, you can have fifty stations and only
ten DID lines, and each station can still have its own published
telephone number. However, only ten of the stations can be on calls at
one time. DID lines are incoming only, so if you need outward dialing,
you’ll need more than just DID lines. Like Tl , DID will be covered
more deeply in the classroom portion of this training. For more
information on the DID board, see IMI89-103.
introducing The DXP 1 - 13