Comdial Dxp Correspondance Instructions Manual

1.8
Identifying
The Station
BoardsStation boards provide the interface for connecting the cables from
telephone stations to the DXP. You can use a station board in
Universal slots 1 through 5 in the main cabinet and universal slots 6
through 11 in the expansion cabinet. The DXP accepts digital, analog,
and industry standard telephones. In order to use these different types
of stations, you must install the correct station board. The following
list explains each station board.
The stations are labeled on...

Industry Standard Telephone Board
The industry-standard station board provides support for.
industry-standard telephones. Each board supports either 8 or 16
stations and uses either one or two 25pair amphenol connectors to go
from the station board to the station punch-down block. A 
prechargeport is provided for board removal or insertion without system
power-down. The light on the front of the station board indicates the
board’s status of operation. If the light is steady-off with a five-second
blink...

DXP Correspondence Manual
Introducing The DXP1.9
Identifying
The Line BoardsLine boards provide the interface for connecting the central office, or
CO, lines to the DXP. You can use a station board in Universal slots 1
through 5 in the main cabinet, universal slots 6 through 11 in the
expansion cabinet, and line slots 1 through 4 in the main cabinet (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...

Introducing The DXPDXP Correspondence Manual
Line Boards-Loop-start Line Board
The loop-start line board (DXPCO-LP8, LP4) supports loop start
lines, and it is available in either a four- or eight-port capacity. Each
loop-start line board has modular jacks that provide connections for
either four or eight lines. You can connect an industry-standard
telephone to the bottom jack to serve as a power-failure telephone. If
the DXP should lose power, the power-fail telephone will continue to
operate. The LED on...

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...

1.10
Using The
Auxiliary Board
and Add-On
CardsThe auxiliary board is an all-purpose “mother board” that
accommodates up to four smaller option cards. You can install two
auxiliary boards in the DXP, but you can only install them in the
Universal 
/ Auxiliary slots of the main cabinet. The option car&include the DTMF Tone card, DXOPT-TON, the communications
card, DXOPT-COM, and the 
Tl sync. card, DXOPT-SYN. These
cards mount onto the auxiliary board, much like the RAM and
software cards mount onto the...

DXP Correspondence Manual
introducing The DXP
Communications Card
The auxiliary board also supports the communications card.
(DXOPT-COM); the DXP has two serial data ports on the CPU
board. Each communications card provides four additional serial data
ports; you may need these ports for additional PC Attendants or
printers, for example. Keep in mind that the two serial ports on the
CPU board are the only two true-high-speed ports. Depending upon
system traffic, the serial ports on the 
comm. card may not...

Introducing The DXPDXP Correspondence Manual
1.11
Using
The Conference
BoardThe DXP services board provides for a limited amount of
conferencing. If additional conferencing is required, you may need to
install a conference board (DXCNF). Each conference board provides
five additional three-way conferencing circuits. You can install a
conference board in any universal or universal 
/ auxiliary slot, and you
can install multiple conference boards. For more information on the
Conference board, see...

DXP Correspondence ManualIntroducing The DXP1.13
Concluding
Chapter OneThe DXP is comprised of a series of mandatory and optional
printed-wire boards: the power supply, CPU and Services boards are
mandatory for system operation, as are the Software and RAM cards.
The line boards, station boards, auxiliary boards, and conference
boards are optional depending upon your application.
Before you go any further in this series complete the study at the end
of this chapter. By now, you should have a general...

Introducing The DXPDXP Correspondence Manual
Chapter One1.
ReviewWhat does the term “modular design” mean?
Questions
I
2.If a client wants the maximum number of lines on his or her
system, the maximum number of lines is
and the
maximum number of stations is
3.If a client wants the maximum number of stations on his or her
system, the maximum number of lines is
and the
maximum number of stations is
4.The number of lines and stations on a DXP is dependent upon
what?
5.The DXP main cabinet holds a maximum of...