Comdial Dxp Plus Instructions Manual

3.3 Understanding The DXP Plus Logical Numbering
Because there are no dedicated station or line ports in the DXP Plus, the system uses an automatic configuration method
to logically number its stations and lines. Automatic configuration occurs after you perform a master clear on the
system.
How automatic configuration works
With automatic configuration, the system does a search for all installed station and line boards in the main and
expansion cabinets, and assigns a logical number for each provided...

3.4 Detailing Station Call Announce Parameters
The DXPPlussystems place no limits (other that the distance constraints stated previously) on telephone
placement and arrangement within the system; however, when placing telephones that require call announcing
capability, consider the parameters detailed in the call announce matrix table.
Call Announce Matrix
Receive Call Announcements
Digital
SpeakerDigital
MonitorDigital
Single
LineAnalog
SpeakerAnalog
MonitorAnalog
Single
LinePC
Atten.Scout...

4.0 Testing The Digital Station Installation
4.1 Making A Resistance Check
Measure the resistance at the station connector blocks under the following conditions.
·AC power cord disconnected from electrical outlet.
·Common equipment connected to station connector blocks.
·Stations wired and wiring punched down on blocks.
·Bridging clips removed from blocks to isolate stations from common equipment.
Measure the resistance of each installed station and wiring from the station side of the connector blocks....

Installing An Industry-Standard Telephone Station Board
In The DXP Plus Digital Communications System
1.0 Understanding Industry-Standard Telephone Support
The DXPPlusdigital communications system supports the use of on-premise industry-standard telephones (IST)
through IST station interface boards. IST installations require a ring generator assembly—one required for the
main common equipment cabinet and another one in each expansion common equipment cabinet. Plus, IST
installations may require a dual...

1.2 Determining The Board Configuration That You Will Need
Use the following specifications to determine the maximum number of station boards and DTMF receiver cards
that you may need.
·Each eight-station circuit board supports up to eight telephones. (It will actually support 16 telephones—two
telephones at each port sharing a common intercom number.)
·You can bridge up to two industry-standard telephones at one station port as long as you do not exceed a
combined ringer equivalence number, or REN, of...

You can configure the system so that a maximum of 29 of these telephones can dial simultaneously.
·services board circuitry that supports one telephone plus one receiver card that supports four telephones
provides support for five simultaneously dialing telephones
·upper expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones
·lower expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones
If you add the...

2.0 Installing Circuit Boards
CAUTION
Circuit boards are susceptible to damage caused by electrostatic discharge, and you must keep this fact in
mind as you handle the circuit boards. Refer to the Comdial publication IMI01-005,Handling Of
Electrostatically Sensitive Components, for general information. Specific handling precautions are also
included in this installation instruction.
2.1 Creating A Static Safe Work Area
When servicing the common equipment cabinet at the installation location, it is a good...

Typical Earth
Ground
Static
Wrist
Strap
ESD Protective
Mat ESD Protective
Mat
ESD Protective
Worksurface
Static 2
Common Point Ground
Creating A Static Safe Work Area
Expansion
Cabinet
Expansion
Cabinet
Earth
Ground 1 Meg Ohm
Resister Conductive
MatStatic Discharge
Wrist Stap Common
Equipment
Cabinet
PLUS035
Providing Static Protection At The Cabinet Mounting Location
Installing The IST Station Board IMI89–184
Installing The IST Station Board – 5 

2.2 Installing IST Station Boards In The Equipment Cabinet
1. Normally you should first disconnect the optional battery back-up equipment from the power supply and then
disconnect the AC power cord from the AC outlet; however, when necessary, you can install a station board
in an operating system. If you must do this, connect one end of a standard telephone handset coil cord to the
precharge port on the power supply. During step 5, you will connect the other end of this coil cord to the
precharge jack on...

Viewing A Typical Station Board Installation
Static Discharge Wrist StrapPower Supply
Pre-charge Port
Typical Industry
Standard Station
Board Station Board
Pre-charge
Port Pre-charge
Cable For
Station Board
Installation
During
Power Up
PLUS026
Installing The IST Station Board IMI89–184
Installing The IST Station Board – 7