Comdial DX-80 Service Manual
’
:
,
DXP
Training Manual
COMDIAL
DXP Correspondence Manual
L
Contents
Contents
Section
Chapter One: Introducing The DXP
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
Introducing This Course
Using The Video Series
Introducing The DXP Hardware
Introducing The DXP Main Cabinet
Using The DXP Modem
Using The Battery Backup
Identifying The Mandatory DXP Boards
Identifying The Station Boards
Identifying The Line Boards
Using The Auxiliary Board and Add-On Cards
Using The Conference Board
Introducing The Expansion Cabinet
.................................................................................
.................................................................................
...............................................................................
.............................................................................
......................................................................
........................................................................
.......................................................................
Page Number
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
....................................................................
..............................................................
.......................................................
..........................................
............................................................
..~.......................
l-l 1
1-14
1-16
1-16
l-l
l-l
l-2
l-3
l-4
l-5
l-5
l-6
l-9
1.13
Concluding Chapter Three
Chapter One Review Questions
...........................................................................
1-17
................................................................... 1-18
Con tents-i
Section Number
Page Number
Chapter Two: Planning An Installation
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
Introducing Chapter Two
Ordering The Right Equipment
Evaluating The Installation Site
Planning The Dedicated Equipment Room
Using The Right Tools
Preparing An MDF Diagram
Checking The Hardware
Testing The Stations
Concluding Chapter Two
...............................................................................
...................................................................................
..........................................................................
................................................................................ 2-6
.......................................................................................
.............................................................................
Chapter Two Review Questions
Chapter Three: Installing The DXP
3.1
3.2
Introducing Chapter Three
Mounting The Main Cabinet
.............................................................................
..........................................................................
...........................................................
......................................................................
..................................................................... 2-3
.................................................................... 2-9
.................................................................. 3-l
2-I
2-l
2-2
....................................................
2-3
2-4
2-5
2-8
.2-8
3-l
3-2
.
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
Mounting The Expansion Cabinet
Grounding The System
..................................................................................
Installing The Power Supply
Connecting A Battery Backup
Installing The Boards
Connecting The Lines
Connecting The Stations
Testing The Stations
..................................................................................... 3-7
..................................................................................
..............................................................................
.....................................................................................
................................................................ 3-3
.......................................................................... 3-4
....................................................................... 3-6
Connecting An External Paging Device
Connecting A Modem
Connecting A Music Source
Installing The Ring Generator
Connecting The PC Attendant
Connecting A Printer
Concluding Chapter Three
..................................................................................
........................................................................
...................................................................... 3-15
.....................................................................
...................................................................................
...........................................................................
3-3
3-10
3-l 1
3-12
.....................................................
3-13
3-14
3-15
3-16
3-17
3-18
ii-Con tents
Chapter Three Review Questions..
........................................................
.:
.....
3-l 9
DXP Correspondence
Manual
Contents
Section
Chapter
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
Chapter Five: System Programming
5.1
5.2
Four: Programming The DXP
Introducing
Using Other publications
Two waystoProgram
Connecting Data Devices..
Using A Modem
Using The DXP Menus
Accessing
Programming..
...........................................................................
..............................................................................
...................................................................................
............................................................................
............................................................................................. 4-5
..................................................................................
the Main Menu..
...........................................................................
Understanding The Main Menu
Chapter Four Review Questions
Introducing System Programming
Master Clearing The System
.......................................................................... 5-2
.................................................................... 4-8
.................................................................... 4-9
...............................................................
................................................................
Page Number
............................................................
4-1
.4-
1
.4-2
.4-3
.4-4
4-6
.4-7
5-I
.5-l
..
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
5.14
5.15
5.16
5.17
Setting The System Defaults
Terminal Setup..
LCD Messages
Save/Restore Database
Serial Ports
SOHVA
Speed
Table Programming..
Dial Programming
Time and Date
System Timing
System Parameters
Paging Zones..
Change Password
Feature Renumbering
Programming The
Major Alarm Reporting
............................................................................................
...............................................................................................
................................................................................. 5-10
................................................................................................... 5- 12
............................................................................. 5- 17
(System
Clock) .................................................................... 5-19
.............................................................................................
.......................................................................................
..............................................................................................
.........................................................................................
..................................................................................
Tl
Parameters
...............................................................................
.......................................................................... 5-4
-5-7
5-8
..................................................................... 5-l 5
5-20
5-26
5-32
5-34
5-36
................................................................ 5-38
5-38
Chapter Five Review Questions..
.................................................................
I
5-39
.
Con tents-iii
Section
Page Number
Chapter Six: Station COS Programming
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
Introducing Station
Account Codes
Automatic Hold
Background Music
Call
Cost Display (Display Of Calls).
Call Forward
Call
Park.. ......................................................................................................
Call Pick-Up
................................................................................................... 6-6
Call Waiting (Tone)
Camp-On Programming..
Do Not Disturb Programming..
Exclusive Hold
Executive Override Programming
COS
Programming..
............................................................................................... 6-2
.............................................................................................
......................................................................................... 6-3
................................................................................................. 6-4
...................................................................................... .6-7
............................................................................... 6-8
..................................................................... .6-9
............................................................................................... 6-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
...........................................................
.................................................................
.......................................................
6-1 .
6-l
6-2
.6-3
.6-6
.6-9
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
6.22
6.23
6.24
6.25
6.26
6.27
6.28
Idle Line Programming
IST Distinctive Ringing
LCD Messaging
Meet
Me
Answer Page..
........................................................................................... 6-10
Message Deposit (Response Messaging)
Message Wait Originate (Message Waiting)
Music
Paging Receive
Paging Transmit
Or
Tone
On
............................................................................................ 6-12
...........................................................................................
................................................................................ 6- 10
............................................................................... 6-10
...............................................................................
.....................................................
..............................................
..............................................................................
Hold
Ringing Preference (Ringing Line Preference)
Day Route Access/Night Route Access
....................................................... 6-14
Day Restriction Level/Night Restriction Level..
System Speed Dial Groups
Directed Station Hold
Remote Station Disable
.......................................................................... 6-l 6
...................................................................................
................................................................................ 6-l 6
6-l
6-l 1
.6-l
1
6-12
6-13
........................................... 6- 13
.........................................
6-15
6-16
1
6.29
6.30
iv-Con tents
Station Monitoring
Line Answer
......................................................................................
6-
17
................................................................................................. 6-18
DXP Correspondence Manual
Contents
Section
6.31
6.32
6.33
6.34
6.35
6.36
6.37
6.38
6.39
6.40
6.41
6.42
6.43
Line Originate
Periodic
Line Tone.. .....................................................................................
Maximum Call Duration
Line Group Access
Line Group Queue
Line-To-Line Transfer
Voice Announce Block
Internal IST Flash
Forced Account Codes..
Allow Busy Display
Clear Major Alarm Ring
.............................................................................................
..............................................................................
.......................................................................................
........................................................................................
(Unsupervised Conference)
................................................................................
.........................................................................................
...............................................................................
(Display Of Busy Status)
..............................................................................
Handset Volume On Impact Telephones
Restrict ARS Ho&flash
..............................................................................
Page Number
6-18
6- 19
6- 19
6-19
6-20
.................................... 6-20
6-20
6-21
6-22
...........................................
.....................................................
6-22
6-22
6-23
6-23
.
6.44
6.45
Chapter Seven: Station Programming
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
Quick Transfer .............................................................................................
Enhanced LCD Display
Chapter Six Review Questions
Introducing Station Programming
Personal
Station Name
Class
Intercom Number
..................................................................................................
Of Service ............................................................................................
...............................................................................6-24
....................................................................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..................................................................
............................................................................7-2
Speed Dial Sets ..............................................................................................
Idle Line Priority
Intercom Hunt List
............................................................................................
.........................................................................................
Group Intercom Access..................................................................................
Prime Line Programming.. ............................................................................
Tone Or Voice Signaling (Tone
First)
6-24
6-25
7-1
7-1
7-2
7-2
7-3
7-3
7-3
7-4
.7-4
..........................................................
.7-5
7.11
7.12
7.13
7.14
Call Announce Beeps (Call Announce Tone Bursts).
...................................
Default Forward Type ...................................................................................
Forward RNA Ring Busy (Enhanced Call Forwarding)
Flexible
Ringing Assignments .......................................................................
...............................
7-5
7-6
I
7-7
7-7
Con tents-v
Contents
DXP Correspondence Manual
Section
7.15
7.16
7.17
7.18
7.19
7.20
7.21
7.22
7.23
7.24
7.25
7.26
7.27
Page Number
Personalized Ringing Tone
LCD Contrast
Service Observing
.................................................................................................
........................................................................................
Day Exception Number/Night Exception Number .....................................
SOHVA Beeps (SOHVA Tone Bursts)SOHVA Groups..
Busy On SOHVA
Pick-Up Groups
.........................................................................................
...........................................................................................
Through Dialing (Thru-Dialing)
Single Line Proprietary Telephone TAP Button..
Ringing On Busy (Enhanced Subdued Ringing)
Allow Ringer Off (Ringer Volume Off)
Station Disable
DWBLF
............................................................................................
Consoles
Installed .......................................................................
...........................................................................
7- 10
.7-
..........................
.7-l
7-11
7-11
..................................................................
........................................
.........................................
.....................................................
7-12
7- 12
7-12
7- 13
7- 14
7-14
.7-9
7-9
11
1
.
7.28
7.29
7.30
7.31
7.32
7.33
7.34
7.35
7.36
7.38
7.39
Chapter Eight: Programming The Lines
8.1
Programming Port (Database Programming Station).
Automatic Voice Mail Transfer On Busy ...................................................
Headset
........................................................................................................
Attendant Position (Alternate, Overflow)
Extended DTMF Dialing
.............................................................................
Interactive Button Support (Softkeys Setup) ..............................................
IST Hold Confirmation
Transfer Ring Cadence
Ring Back On Busy
Telephone Types (Phone
Copy Model Programming..
Chapter Seven Review Questions
Introducing Line Programming
................................................................................
................................................................................
.....................................................................................
Types)
.................................................................
........................................................................
................................................................
.........................................................
......................................................................
.................................
7-15
.7-l
7-15
....................................................
7-16
7-16
.7-17
7-18
7-18
7-19
.7-2 1
.7-22
7-23
8-l
8-l
5
8.2
8.3
8.4
8.5
vi-Con tents
Line Name
Line Type
Line Disable
......................................................................................................
.......................................................................................................
............................................................................................I......
Music Or Tone On Hold
...............................................................................
8-2
8-2
8-4
8-4
Section
Page Number
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
8.16
8.17
8.18
8.19
8.20
Automatic Privacy (Privacy Release)
SMDR
Cost Incoming
Pad Level-Transmit, Receive
Dialing Mode
Abandon Hold Release
Positive Disconnect Time
Toll Groups
DTMF Level
Busy Lead Detection..
Disconnect Supervision
Caller ID Active
Voice Mail ID
DISA and DISA Voice Options
Line Group Programming
............................................................................................................
...............................................................................................
......................................................................
.................................................................................................
...................................................................................
..............................................................................
.................................................................................................... 8-9
..................................................................................................
..................................................................................
................................................................................
...........................................................................................
..............................................................................................
................................................................... 8-l 1
............................................................................
............................................................
8-5
8-5
8-5
8-6
8-7
8-8
8-8
8-9
8-10
8-10
8-10
8-l 1
8-12
8.21
8.22
8.23
8.24
8.25
8.26
Chapter Nine: Intercom Numbers
9.1
9.2
9.3
9.4
9.5
Copy Model Line
Direct Inward Dialing (DID) Support..
DID Options
DBXDNIS
Direct Inward System Access (DISA)
Enabling Or Disabling DISA
Chapter Eight Review Questions
Introducing Intercom Programming
Modifying Intercom Numbers
Adding Intercom Numbers
Removing Intercom Numbers
Renumbering Intercom Numbers
Chapter Nine Review Questions
Translation Tables
........................................................................................
.................................................................................................
..................................................................... 8-17
Lines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.......................................................................
............................................................................. 9-3
.......................................................................
8-12
........................................................ 8-l 3
8-14
.........................................................
............................................................. 8-l 9
.................................................................
...............................................................
..................................................................
.................................................................... 9-5
8-18
8-20
9-1
9-l
9-2
9-3
9-4
,
Section
Page Number
Chapter Ten: SMDAISMDR
10.1
10.2
10.3
10.4
Introducing
SMDABMDR
SMDABMDR
Parameters
Account Code (System Parameters)
Emergency Numbers..
10.5 Authorization Code
Chapter
Chapter Eleven: Toll Restriction
1
1.1
Introducing Toll Restriction..
Ten Review Questions.. ..................................................................
11.2 Restriction Levels
11.3 Toll Groups
..................................................................................................
11.4 Restricted Numbers
11.5 Exception Numbers
Chapter Eleven
Review Questions.. .............................................................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Programming
...........................................................................
..................................................................................
......................................................................................
........................................................................................
......................................................................................
......................................................................................
10-l .
................................................... 10-l
10-2
.............................................................
10-5
1 O-7
10-7
10-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..‘......................
.......................................................................
11-1
1 1 -
1
11-2
11-3
11-3
11-4
1 l-5
Chapter Twelve: Automatic Route Selection
12.1
12.2
12.3
12.4
12.5
12.6
Introducing Automatic Route Selection
ARS Enable.. ................................................................................................
Line Groups for
Route Tables
(ARS) .....................................................................................
Costing Information (ARS)
...................................................................................
ARS
..........................................................................
Automatic Route Selection for Speed Dial Numbers..
Chapter Twelve Review Questions..
.
Chapter Thirteen: System Printouts
13.1
13.2
Introducing System Printouts..
Identifying System Printouts
..~...................................~......,......,.....,.
.....................................................................
........................................................................
. . . . . . . . . . . . . . .
.......................................................
............................................................
Chapter Thirteen Review Questions ............................................................
..m..........................m..
12-1
12-1
12-2
12-2
12-3
12-6
................................
12-7
12-8
13-1
13-l
13-2
13-3
viii-Con tents
Section
Page Number
Chapter Fourteen: Diagnostics
14.1 Introducing Diagnostics
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
14.10
Initialize Diagnostic Data
ROM Checksum Verification
Scratch RAM Test
Non Volatile RAM test
Time Switch Memory Test
Main CPU DTMF Receiver Test
AUX Board DTMF Receiver Test..
Speaker Coefficients
CPU Board and DIP Switches
...............................................................................
.............................................................................
........................................................................................
................................................................................
...................................................................................
Chapter Fourteen Review Questions..
Chapter Fifteen: Peripherals
15.1
Introducing the DXP Peripheral Equipment
..........................................................................
.....................................................................
14-1
14-1
14-2
......................................................................
14-2
14-2
14-2
.......................................................................... 14-3
.................................................................
.............................................................
14-3
14-3
14-4
.....................................................................
14-4
.......................................................... 14-5
15-I
................................................ 15-
1
.
15.2
15.3
15.4
15.5
15.6
15.7
Caller ID Programming..
..............................................................................
Tracker Paging System Programming
Digital Voice Announce Programming..
PC Attendant Position Programming
Voice Mail Programming
Modem Setup
.............................................................................................
...........................................................................
Chapter Fifteen Review Questions..
.........................................................
...........................................................
.........................................................
...................................................... 15-6
15-12
15-14
15-19
15-20
15-2
15-4
Con tents-ix
II
Introducing The DXP
Introducing The DXP
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Introducing This Course .......................................................................
Using The Video Series ........................................................................
Introducing The DXP Hardware ..........................................................
The
DXP’s
Introducing The DXP Main
Using The DXP Modem ......................................................................
Using The Battery Backup ................................................................... l-5
Identifying The Mandatory DXP Boards .............................................
Interface Boards
Services Board .............................................................................
CPU Assembly
RAM
Software Card
Identifying The Station Boards
Analog Station Board..
modular design
Card.. .................................................................................. 1-8
. . . . . . . . ..L.............................................................~......
..........................................................
Cabinet .................................................... l-4
...........................................................................
.............................................................................
..............................................................................
............................................................
.................................................................
l-3
l-6
l-7
l-7
l-8
l-9
l-l
l-l
l-2
l-3
l-5
l-6
l-9
1.9
Digital Station Board
Industry Standard Telephone Board..
Wiring The Stations
Identifying The Line Boards ..............................................................
Loop start line board
Multipurpose line board..
TI board..
DID board
.................................................................................... 1-13
.................................................................................. l-13’
...................................................................
.........................................
...................................................................
..................................................................
........................................................... 1-12
l-9
l-10
l-10
1-12
l-11
Chapter Con tents
1.10
Using The Auxiliary Board and Add-On Cards ................................
DTMF Tone Card ......................................................................
1-14
1-14
Communications Card................................................................
1-15
Synchronization Card................................................................. l-15
1.11
1.12
Using The Conference Board.............................................................
Introducing The Expansion Cabinet
...................................................
1.13 Concluding Chapter One ....................................................................
Chapter One Review Questions ..........................................................
1-16
1-16
1-17
l-18
Chapter Con tents
DXP Correspondence Manual
Introducing The DXP
Introducing The DXP
1.1
Introducing
This book is part one of Comdial Corporation’s three-part DXP
Certification process. You must pass all three portions of the training
to become an authorized DXP installer.
I
This Course 1o
Basic DXP course-a three-day class that introduces you to the
fundamentals of DXP installation, programming, and operation. The
final stage of your certification is the two-day Advanced DXP course,
which covers some of the advanced features and peripherals, like the
Tl,
In addition to your correspondence manual, you should have received
a series of training videotapes and the DXP System Manual. If you
study all of these materials carefully, completing this correspondence
course is fairly simple. You will find study questions at the end of
each chapter in this manual; the answers to these questions are in the
back of the book.
Keep in mind that the purpose of this course is to provide you with a
basic overview of the DXP system and to prepare you for the
classroom portion of the training.
For more information about the DXP, or for additional training
materials, call Comdial’s Inside Sales Department at l-800-347-1432.
rice
you complete the correspondence course, you can enroll in the
Digital Voice Announce (DVA), and DID for example.
introducing The DXP I - 1
Introducing The DXP
DXP Correspondence Manual
1.2
Usinc
_
----
3
The
Video Series
The following list details the purpose of each of the videos in this
series.
l
When you have finished Part One,
Introducing The DXP, you
should be acquainted with the DXP hardware and
printed-wire-boards, and you’ll be ready to move on to Part
Two, Planning an Installation.
l
Part Two,
Planning an Installation,
evaluates the preliminary
considerations for installation and programming. In Part Two,
we’ll survey the installation site and show you some of the
pre-installation steps.
l Part Three, Installing The
DXP,
takes you step-by-step through
the DXP installation, including hardware, software, wiring,
and optional peripherals.
l In Part Four, Programming The DXP, we’ll be programming
the system, and we’ll explain the features and applications that
we use on that system; Any additional DXP features will be
covered in the classroom portion of the training.
l
Part Five,
of the
Operating The Telephones,
DigiTech
II, Impact, and Industry-standard telephones
gives you an overview
and explains how they operate through the DXP. The video
also discusses individual station programming that the
end-user can perform.
l
Part Six,
Advanced DXP Features,
discusses a few of
DXP’s
more advanced features.
When you have finished with all of this manual and have watched all
of the correspondence training tapes, you should be familiar with the
following:
-
The versatility of the DXP system and how to best utilize the
features and applications to meet your customer’s needs;
-
The DXP components-including system hardware, software,
printed-wire boards, and telephones;
-
Installation, wiring, and system checkout;
-
Programming of a DXP system and stations,
-
and finally, using the various telephones with the DXP.
By watching the training tapes and completing this correspondence
course, you will be prepared to move on to the DXP classroom
training. At the beginning of the in-class training, you will be given a
pre-test based on the videos and correspondence course.
I-
2 Introducing The DXP
1.3
Introducing
The DXP
Hardware
The DXP has a modular design with all of the system’s switching
circuitry housed on printed-wire-boards that simply slide in and out of
the cabinets. Installing the DXP is quick and easy, and the variety of
boards makes the system versatile enough to meet virtually any
business’s needs. The DXP is comprised of two cabinets, the main
cabinet and the expansion cabinet.
The DXP’s Modular Design
One of the benefits of the DXP is its flexibility, and that flexibility
comes from its modular design.
The term “Modular design” means that the system’s electronic
components are housed in a series of self-contained printed wire
boards that can be arranged quickly and easily into a variety of
configurations.
By changing the printed wire boards, you can find the right
combination of features and telephone capacities to suit the needs of
your particular client.
For example, if a client desires maximum line capacity, you can
configure a fully-equipped DXP main cabinet and expansion cabinet
for a total of 120 lines on 16 telephones. If a client wants maximum
telephone capacity, you can configure the system to provide 32 lines
on 192 telephones.
The number and type of boards that you install determines the DXP’s
line and telephone capacities. You can also update the DXP’s software
card to enhance the features and capabilities of the DXP.
The DXP allows you to make many of these modifications without
disrupting the client’s normal telephone service.
Introducing The DXP 7 - 3
Introducing The
DXP
DXP Correspondence Manual
1.4
Introducing
The DXP Main
Cabinet
The main cabinet (DXCBM) contains the main power supply and up
to 12 printed-wire-boards. The cabinet is 26 inches wide, 19 inches
high, and twelve inches deep, and it’s comprised of the following
components:
l an external, ventilated sheet-metal housing with detachable
front cover,
l the card cage-the metal frame into which you insert the
printedwire-boards,
.
and the backplane-a large printed-wire-board that provides
the circuitry to connect the individual boards together.
When you first open the main cabinet, you will see an empty space
where the power supply is to be mounted. The power supply provides
DC operating power for the DXP printed-wire boards and also for the
individual digital stations as well. The power supply is shipped
separately, and we’ll cover it later in this manual.
The space directly above the power supply is reserved for the ring
generator. Industry-standard telephones require voltage to enable
ringing and to turn on the message-waiting lights; the ring generator
supplies the required voltage to all of the IST stations on the DXP.
You must have a ring generator if you are going to use IST stations,
and you must have a ring generator in each cabinet that supports IST
stations. It’s a good idea, therefore, to plan on configuring all of your
IST stations through one of the cabinets.
.
Moving from left to right in the main cabinet, the slots for
boards are as follows:
-
Interface board
-
Services board
-
CPU Board (RAM Card/Software Card)
-
Universal 1 / Auxiliary Board
-
Universal 2 / Auxiliary Board
-
Universal slots
-
Line slots 4, 3, 2, 1.
For more information on the DXP main cabinet, see
IMI66-085.
3,4,5
GCA40-069
the
12
and
1 - 4 Introducing The DXP
I.5
Using The DXP
Modem
The space directly below the interface board (slot one) is reserved for
the DXP modem, DXMDM. The modem allows you to service and
program the DXP from a remote location. The modem runs at a
maximum of 2400 baud, and it receives its power from the
power supply. Please note that this is a proprietary modem. For more
information on the modem, see
IMI89-139.
DXP
1.6
1
Using The
Battery Backup
You can install a battery backup (BBLDX) that provides a minimum
of one hour of operation should the DXP lose power. The DXP
supports a maximum of two battery backups. If you are using an
expansion cabinet, you need two battery backups to guarantee at least
an hour of backup operation. You can, however, use two battery
backups without an expansion cabinet in order to provide even longer
backup time. For more information on using the battery backup, see
IMI89-074.
Introducing The
DXP
1 - 5
Introducing The
DXP
DXP Correspondence Manual
Identifying
The
Mandatory
DXP Boards
1.7
The card cage of the main cabinet has grooves on the top and bottom
racks to ensure that each printed-wire-board only fits into the correct
slot. On the backplane are
board. These connections provide the contact points for the bus
connectors that are edge-mounted on the printed-wire-boards. A
horizontal metal bar runs along the backplane to provide structural
support for the backplane; it also provides mechanical keying of the
boards to the backplane to prevent you from accidentally inserting a
board into the wrong slot. The front of the cabinet also has a printed
label that designates which printed-wire-board fits into which slot.
Keep in mind that some of the
system operation and some of them are optional.
pinouts
DXP’s
that match the
boards are mandatory for
pinouts
on each
Interface Boards
The first slot in the cabinet, moving from left to right, is for the
Interface 1 board
sent from the main cabinet to the expansion cabinet; it makes sure
there is no integrity loss in the digital signal between the two cabinets.
So, you’ll only need an interface board if you’re going to use an
expansion cabinet (for information on the expansion cabinet’s
interface board, see section 1.9, Introducing The Expansion Cabinet).
The slot for the interface 1 board is smaller than any of the other
card-cage slots. The interface board is the only half-sized board that
inserts directly into the backplane. Both interface boards, the one for
the main cabinet and the one for the expansion cabinet, are shipped
with the expansion cabinet. For more information on the interface
boards, see
(DXINM).
IMI66-086.
The interface 1 board buffers the signals
I-
6 Introducing The DXP
DXP Correspondence Manual
Introducing The DXP
Services Board
The second slot is reserved for the Services board (DXSRV). The
services board houses all of the following: the master timing and
synchronization circuits for voice and data paths, the conferencing
circuitry (the DXP has twenty-six time slots dedicated for
conferencing) the digital pad for controlling audio on a per-channel
basis, and the voice and data time switches. The services board also
provides a 6-pin modular jack that serves as an input for
music-on-hold and background music as well as an output for an
external paging amplifier. The status light on the front of the board
stays on-steady to indicate normal system operation. The light goes
off or flashes to indicate system malfunction. For more information on
the Services board, see
IMI66-085.
CPU Board Assembly
The central processing unit, or CPU, board belongs in the third slot
(DXCPU-68K). The CPU board is actually an assembly containing the
main board and two additional cards. The CPU board holds the
primary processing and control circuits for the DXP system; it also
contains the master processor, the interface connector for the system
memory, two
The CPU board has four 6-pin modular jacks that provide the interface
for two serial data devices and four relay contacts. Just as with the
services board, the status light is on-steady to indicate normal system
operation. The CPU light, however, flashes to indicate system
malfunction and is steady-off to indicate a loss of power.
Along with the printed-wire-boards that slide into the backplane, the
DXP has smaller circuit cards that mount directly onto certain
full-sized boards. We don’t use the terms “card” and “board”
interchangeably; boards mount directly into the DXP, while cards
mount onto boards. Two of these additional cards, the RAM and
Software cards, mount onto the CPU board and make up the assembly.
For more information on the CPU board, see
DTh4F
receivers, and the system calendar and clock.
IMI66-085.
introducing The DXP 1 - 7
Introducing The
DXP
DXP Correspondence Manual
Ram Card
The random access memory, or RAM, card holds the memory.
required to support the system’s software package and database. The
RAM card attaches directly to the CPU board, and its circuitry is
connected to the CPU board through a
The RAM card is available in two forms: the standard
DXRAMSTD68K,
and the expanded RAM, DXRAM-EXP68K. Both
boards have a super capacitor that retains system programming for a
minimum of 60 hours if the DXP loses power. The main difference
between the two boards is that the standard RAM card provides
approximately 200 Station Message Detail Records (SMDRs); the
expanded RAM provides approximately 12,200 SMDRs. The
expanded
RAM
also allows on-board software upgrade; a feature that
increases the speed of upgrading the DXP software.
While the RAM card attaches directly to the CPU board the system
software card attaches onto the RAM card. For more information on
the Ram card, see
IMI66-085,
and
64-pin
IMI89-095.
dual in-line connector.
RAM
card,
Software Card
The software card
read-only memory, or EPROM, that stores the operating controls of
the DXP telephone system. The software card attaches to the RAM
card, and, like the RAM card, signals pass between these cards
through a
64-pin
connect these cards. There are several different versions of software
available for the DXP; the different software versions determine
which telephones and features the system supports. For more
information on the Software card, see
(DXPSW-xxx)
houses the erasable, programmable,
dual in-line connector. Chapter Three details how to
IMI66-085,
and
IMI89-095.
1 - 8 Introducing The DXP
1.8
Identifying
The Station
Boards
Station 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 the front of the cabinet; note that the
station designations go from the left to the right.
For more information on the Station boards, see
lMI66-085.
Analog Station Board
The analog station board provides support for Comdial’s proprietary
analog telephones (such as the various
board supports either 8 or 16 stations and uses either one or two
25-pair
station punch-down block. A precharge port 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 rate, all of the station
ports are idle; if the light is steady-on with a five-second blink rate, at
least one station port is busy. Both steady-on and steady-off indicate a
board malfunction, and a rapid flash indicates a malfunctioning
micro-processor.
amphenol
connectors to go from the station board to the
ExecuTech
models). Each
Digital Station Board
The digital station board provides support for Comdial’s proprietary
digital telephones (such as the Impact and
supports either 8 or 16 stations and uses either one or two 25-pair
amphenol
punch-down block. A precharge port 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 rate, all of the station ports are
idle; if the light is steady-on with a five-second blink rate, at least one
station port is busy. Both steady-on and steady-off indicate a board
malfunction, and a rapid flash indicates a malfunctioning
micro-processor.
connectors to go from the station board to the station
DigiTech).
Each board
introducing The DXP I- 9
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
from the station board to the station punch-down block. A
port 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 rate, all of the station ports are idle; if the light is steady-on with
a five-second blink rate, at least one station port is busy. Both
steady-on and steady-off indicate a board malfunction, and a rapid
flash indicates a malfunctioning micro-processor.
NOTE: Remember that you will need a ring generatorfor each
cabinet that has any IST stations. You also will need a
DTMF receiver card
simultaneous dialing paths.
25pair amphenol
ifyour
site requires more than two
connectors to go
precharge
The following chart details the wiring requirements for all of the
different stations.
Digital Telephone
Analog Multiline Telephone
Analog Single-Line Proprietary
Telephone
Industry-Standard Telephone
Wiring The Stations
2500
Feet
2500
Feet
4000 Feet
4000 Feet
2000
2000
3500
3500
Feet
Feet
1500
1500
Feet
Feet
Feet 3000 Feet
Feet 3000 Feet
1 - 10 introducing The DXP
DXP Correspondence Manual
Introducing The DXP
1.9
Identifying
The Line Boards
Line 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
cabinet). While line boards are optional, it’s rare that you will have an
application that won’t require CO lines. The DXP supports several
different types of line boards,
l Loop start,
l Multipurpose,
l Direct Inward Dialing, or DID,
l and
Tl.
Make sure that the lines coming from the CO match the line boards
that you install in the DXP. Having a Tl board does not mean you
have Tl lines, for example. Be sure to coordinate with your CO before
you plan your line configurations. Special software may be required to
support certain line boards. Your class instructor will give you further
details on software requirements when you take the classroom portion
of the training.
Like the station boards, each line board has a pre-power jack that
allows a technician to service the board while the DXP still has AC
power.
The status light on each line board indicates when a line is in use: off
with a five-second blink rate on indicates that all lines are idle; on
with a five-second blink rate off indicates at least one busy line. A
rapid flash indicates a malfunctioning microprocessor on the line
board. All line boards provide secondary surge protection; Chapter
Three discusses secondary and primary surge protection.
Introducing The DXP 1 - 11
Introducing The
DXP
DXP 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 the front of the board indicates when a line is in
use: off with a five-second blink rate on indicates that all lines are
idle; on with a five-second blink rate off indicates at least one busy
line. A rapid flash indicates a malfunctioning microprocessor on the
line board. Each loop-start board also has a power fail and auxiliary
interface. For more information on the loop start board, see
IMI66-085.
Line Boards-Multipurpose Line Board
The multipurpose line board
lines, ground start lines, or E and M tie lines. Like the loop start board,
the multipurpose board also is available in either a four- or eight-port
capacity, and you can use any combination of the three line types.
However, ports three and four on each multipurpose board are the
only ports that support E and M tie lines. The LED on the front of the
multipurpose board functions exactly like that on the loop start board;
each multipurpose board also has a power fail and auxiliary interface.
For more information on the multipurpose board, see
(DXPCO-GDS,
GD4) supports loop start
IMI89-097.
I-
12 introducing The DXP
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
board, see
IMI89-141.
Tl
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
1.10
Using The
Auxiliary Board
and Add-On
Cards
The 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
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 CPU board.
While you can install a station, line, conference, or auxiliary board
into either universal / auxiliary slot (first two slots next to the CPU
board), we recommend that you try to leave at least one of these slots
for an auxiliary board, even if you don’t need an auxiliary board now,
you may want to expand the system later. Remember, these are the
only two slots in the entire system that will accept an auxiliary board.
Use the line slots and universal slots for line and station boards before
you use a universal / auxiliary slot.
car&
DTMF Tone Card
The DTMF tone card expands the
capability: without a tone card, only two industry-standard telephones
can dial out of the DXP simultaneously. Each DXOPT-TON card
provides four more IST dialing paths. So if you are going to have
several IST telephones, it’s a good idea to install a tone card to make
sure that more than two of them can dial-out simultaneously. You can
install four tone cards on each auxiliary board (see
Installation Instructions, for more information).
DXP’s
industry-standard dialing
lMI89-078,
IST
1 - 14 Introducing The DXP
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 operate at a
true 9600 baud rate. You can install up to two corn-cards on each
auxiliary board, but you must install them on the bottom two slots of
the auxiliary board. For more information on the Corn. card, see
IMI89-124.
Synchronization Card
Finally, the DXOPT-SYN, or sync. card, adjusts the DXP Tl transmit
frequency to match the frequency received from the central office or
master DXP. You only need a sync. card if you are using the Tl
board, and you can only install one sync. card into the DXP. If your
Tl
board is connected to the C.O., you must have a sync. card. If you
have two
DXPs
connected together with the Tl configured as E & M
tie lines, only one DXP must have a sync. card. For more information
on the sync. card, see
IMI89-141.
Introducing The DXP I- 15
Introducing The
DXP
DXP Correspondence Manual
1.11
Using
The Conference
Board
The 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
lMI66-085.
1.12
1
In trocfucing
The Expansion
Cabinet
1
The expansion cabinet is very similar in design and function to the
main cabinet. The main cabinet holds 12 boards, and the expansion
cabinet holds up to eight additional boards. As its name indicates, the
expansion cabinet simply increases the number of stations and lines
that you can have on the DXP system.
The far left of the cabinet houses the expansion-cabinet power supply;
this power supply is designed specifically for the expansion cabinet.
Chapter three discusses the power supply in more detail. The
backplane and card cage are very similar to those in the main cabinet.
This first slot holds the interface 2 board. The interface 2 board
connects to the interface 1 board to secure the integrity of the digital
signals between the two cabinets. You must have an interface 2 board
if you are going to use an expansion cabinet. The remaining slots in
the expansion cabinet, universal slots 6 - 12, each can hold either a
line, conference, or station board. You cannot use an auxiliary board
in the expansion cabinet. For more information on the expansion
cabinet, see
IMI66-086.
1 - 16 Introducing The DXP
DXP Correspondence Manual
Introducing The DXP
1.13
Concluding
Chapter One
The 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 understanding of
the function and capabilities of the DXP hardware, printed-wire
boards, and expansion cabinet; if you aren’t secure in your knowledge
of any of these, rewind Tape One and watch it again; then reread
Chapter One.
Introducing The DXP 1 - 17
Introducing The
DXP
DXP Correspondence Manual
Chapter One
Review
Questions
I
1.
What does the term “modular design” mean?
2.
If a client wants the maximum number of lines on his or her
system, the maximum number of lines is
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
maximum number of stations is
4.
The number of lines and stations on a DXP is dependent upon
what?
and the
and the
5.
The DXP main cabinet holds a maximum of 20 boards; True
or False?
6.
The DXP can use any modem that supports the correct baud
rates; True or False?
7.
How long will a DXP battery backup provide operation to the
DXP in the event of a power failure?
8.
Is the interface board ever mandatory? If so, when? If not, why
not?
9.
What is the maximum number of Interface boards that you can
install in a system?
1 - 18 introducing The DXP
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