Comdial Dxp Plus Instructions Manual

Installing The Communications Card
Supplied Mounting
Hardware (8 Places)
Services BoardCommunications
Card
PLUS017
Supplied
Hardware (8 Places)
Interface Board
For Upper
Expansion
CabinetCommunications
Card
PLUS016
Supplied
Hardware (8 Places)
Interface Board
For Lower
Expansion
CabinetCommunications
Card
PLUS019
Installing The Communications Card IMI89–190
Installing The Communications Card – 5 

4.0 Identifying The Communications Card’s Serial
Data Port Connections
Each communications card provides four serial data ports. Each serial data port is a standard 6-conductor modular
jack that serves as the interface connection between an external data device and the DXPPlussystem.
The system designates serial data ports 3–18 to specific locations and, you must take programming action to
match the data port number with the installation location that you choose for the communications card.
Serial Data...

Identifying The Serial Data Port Locations
PLUS020
Interface Board
For Lower
Expansion Cabinet Serial
Ports
3 - 6
Serial
Ports
7 - 10
Serial
Ports
11 - 14
Serial
Ports
15 - 18
Services Board
Interface Board
For Upper
Expansion Cabinet
Auxiliary
Board (Main
Cabinet Location
ONLY)
Installing The Communications Card IMI89–190
Installing The Communications Card – 7 

5.0 Connecting Data Devices
5.1 Selecting The Baud Rate
Each serial data communications port supports various baud rates, data bits, stop bits, parity, and flow control.
You can program these various options using the data base programming; however, the maximum baud rate that
you can assign to a serial data port varies depending upon whether you locate the communications card. Also, if a
device is transmitting/receiving data from the DXPPlusat a high rate, engineering sources recommend that you
use a...

4.1 Making the Data Connections
Each serial data port is a standard 6–conductor modular jack that serves as the interface between an external data
device and the DXPPlussystem.
When preparing a data cable for connection to a data device, refer to the manufacturer’s manual for the equipment
being interfaced, and make the wiring connections detailed in the following list:
·Wire the common equipment RD (data from device to common equipment) connection to the device TD
(transmit data) connection.
·Wire the...

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IMI89–190 Installing The Communications Card 

Installing The External Battery Assembly
On The DXP Plus Digital Communications System
1.0 Introducing The External Battery Assembly
The external battery assembly is for use with the DXPPlusdigital communications system. Unpack and carefully
inspect all equipment for shipping damage.  Notify the shipper immediately of any damages found. Verify that the
packages contain all parts and accessories needed for proper installation and operation. The assembly includes the
following items:
·Batteries: Five...

2.0 Understanding System Grounding Requirements
Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable and into the
common equipment. The telephone company offers basic protection against this condition but it is usually
designed to protect the central office circuits. While it will also provide some protection to the common
equipment, you should not rely upon it for total protection. To help ensure that external over-voltage surges do not
damage the system, you...

PLUS073
Grounding Terminal Two Grounding TerminalsGrounding Terminal
Grounding Terminal
Typical Earth Ground
No. 6 Solid Copper
Wire To Earth Ground
From Main Cabinet
No. 10 or 12 Solid Copper
Wire Between Cabinets
Grounding The System
Installing The External Battery Assembly IMI89–189
Installing The Battery Back Up Assembly – 3 

3.0 Mounting The Charger Chassis
You must mount the charger chassis to the battery cabinet; however, the particular position that you chose for this
mounting depends upon the method that you plan to mount the cabinet at the DXPPlussite.
·If you plan to mount the battery cabinet on a backboard at the side of the common equipment cabinets, you
must attach the charger, with its cables pointing toward you, to the left end of the battery cabinet as you face the
cabinet’s battery opening.
·If you plan to mount...