Comdial Dxp Plus Instructions Manual

3.2 Installing The System Software And CPU Board
1. Place the static protection bags that contain the CPU board and the system software card on the static safe
work area.
2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit.  Be sure that the strap is
touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an
AC or earth ground.
3. Remove the CPU board and system software card from their static protection bags,...

4. If the common equipment cabinet is not at the static safe work area, place the assembled CPU board and
software card into a static protection bag and transport the board assembly to the cabinet.
5. Be sure that the AC power cord is not connected to an AC outlet and that the cable from the optional battery
back-up assembly is not connected to the main cabinet power supply.
6. Locate the proper board slot. Remember, the CPU board plugs into a unique slot.
7. With your static discharge wrist strap...

3.3 Installing The Services Boards In The Equipment Cabinet
1. Be sure that the AC power cord is not connected to an AC outlet and that the cable from the optional battery
back-up assembly is not connected to the main cabinet power supply.
2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit.  Be sure that the strap is
touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an
AC or earth ground
NOTE: With the...

Viewing The Circuit Board Installation
Static Discharge
Wrist Strap Services Board Slot
CPU Board Slot Typical Extractor Lever
(Press boards into place
by pressing at the
extractor lever locations.)Clip to
Grounding
Terminal
PLUS043
Installing The DXP Plus Main Cabinet IMI66–105
Installing The DXP Plus Main Cabinet – 15 

4.0 Connecting Data Devices
The system provides two short-run serial data ports on the CPU board. The system designates these modular jacks
as Modem and Maintenance. These two serial data ports are dedicated to the personal computer (PC) that you will
use to load the programmed data base and to the remote servicing and programming modem that you will use to
remotely load the programmed data base and troubleshoot the system. Since these serial data ports are short-run,
you must keep the cabled distance...

Detailing Typical Data Device Connections
PLUS044
1
2
3
4
5
6
1
2
3
4
5
6
Serial Modem Port
Maintenance Port
Modular Jacks
Pin 1 = Request To Send
Pin 2 = Clear To Send
Pin 3 = Receive Data
Pin 4 = Transmit Data
Pin 5 = Signal Ground
Pin 6 = Frame Ground
(Front View of Jacks)
NOTES:
1.
2.
Some data devices require
CTS signal for proper
operation. Route to device
as needed. Maximum distance between
each ofthe two dedicated
serial data ports and its
external data equipment
is 25 feet.
Installing The DXP...

5.0 Viewing The Circuit Board Status Indicators
Once you have installed the CPU board and services board in the main cabinet, turn on the AC power and observe
the board’s status lights.
The status light on the front of the circuit boards shows the following conditions:
Circuit Board Status Light Condition
CPU Board Steady On = Normal Operation
Steady Off = System Malfunction
Services Board Green Steady On = Normal Operation
Green Steady Off = System Malfunction
Yellow Off, Red Off = Normal Operation...

6.0 Configuring The Common Audible Ringing Interface
The services board provides relay actuation dry-contact terminals that you can use for controlling external ringing
equipment. These relays are under programming control. You can program them to provide dry-contact
actuations that track the ringing pattern of any of the programmed flexible ringing assignment ringing patterns.
CAUTION
Do not exceed a 1 amp at 24 volts (0.5 amp at 48 volts) load on these control terminals. If the load
requirements exceed...

7.0 Configuring The External Paging Interface
A special transformer-isolated external paging port, located on the services board, provides system interface for
an external paging amplifier. Connect a customer-supplied paging amplifier to the PAGE jack as shown in
illustration.
Remember, the Services board provides relay actuation dry-contact terminals that you can use for controlling the
external paging amplifier. Of course, you must make the necessary wiring arrangements to match the control that
you...

8.0 Installing An External Audio Source
If music or other audio information is to be part of the system, connect a customer-provided audio source to the
common equipment music interface jack provided on the services board. These jacks are labeled MUSIC1 and
MUSIC2. You can provide different audio sources, one for outside parties while on hold and another for internal
background music, if desired. The input impedance of the music interface is approximately 500 ohms. Use the
volume control on the audio...