Comdial Dxp Correspondance Instructions Manual

							10. The interface board for the main cabinet is interchangeable
with the expansion cabinet interface board; True or False?
.
11. What are the three uses for the six-pin jack on the Services
board?
12. What does it mean if the light on the Services board goes off?
13. How many serial data ports are there on the CPU board?
14. Which of the following is not housed on the CPU board:
Primary processing and control circuits
Master Timing
Interface connector for system memory
Primary system memory
Conferencing circuitry
System calendar and clock.
15. Where does the software card mount in the DXP?
16. What is the difference between the standard RAM and the
expanded IV&I?17. What are the three types of station board?
18. If a station board’s LED is steady-off with a five-second blink
rate, the board has a microprocessor problem; true or false?
introducing The DXP I- 79 
						

							19. Station boards have a
station wiring.cable for connection to the
.
20. What are the four types of line boards that the DXP supports?
2 1. Each DXP line board providessurge protection.
22. Where is the connection for a power fail telephone located?
23. DID lines are outgoing only; true or false?
24. The Tl board provides support for E & M Tie lines and ground
start lines; true or false?
25. You can install two Auxiliary boards in the DXP, and you can
install them in any universal slot; true or false?
26. What purpose does the 
DTMF tone card serve?
27. Each communications card provides
?28. You only need a sync. card if you are using
?
I - 20 Introducing The DXP 
						

							DXP Correspondence Manual
Introducing The DXP
29. The expansion cabinet needs its own power supply; true or
false?
30. The expansion cabinet holds a maximum of
(excluding the interface 2 board)?boards
3 1. In Part One of the DXP video series, what is the narrator’s
name?
Introducing The DXP 1 - 21 
						

							DXP Correspondence ManualChapter Con tentsPlanning An InstallationChapter Two: Planning An Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9Introducing Chapter Two.....................................................................2-l
OrderingTheRight Equipment............................................................2-2
Evaluating The Installation Site...........................................................
2-3Planning The Dedicated Equipment Room..........................................2-3
Using The Right Tools.........................................................................
2-4PreparingAn MDF Diagram................................................................
2-5Checking The Hardware.......................................................................
2-6Testing The Stations.............................................................................
2-8Concluding Chapter Two....................................................................
2-8Chapter Two Review Questions...........................................................
2-9Chapter Con tents 
						

							IIL.
2
Planning An Installation
2.1
Introducing
Chapter TwoOne of your primary responsibilities as the DXP installer is to
determine the type and quantity of equipment needed for each
installation site. Remember that the needs and specifications of each
installation site will be different based on the number of lines, stations
and peripheral equipment that fits that customer’s business. When you
begin a new installation, ask yourself some of the following questions:
IlWhat are the client’s present and future telecommunications
needs? Are you replacing an existing business telephone system,
or is this a completely new installation?
lWhat are the problems the client is experiencing with his or her
old telephone system? Why is a DXP the right telephone system?
lHow many lines and stations are you going to use? Remember to
leave plenty of room for future expansion.
lWill you use ground start, loop start, 
Tl, or DID lines?
lWill you have digital, analog, or IST stations?
lWhat peripheral equipment will you use: paging device, music
source, or battery backup, for example.
You’ll have to answer all of these questions well in advance of
actually ordering any of the equipment for you installation. Keep in
mind that your customers aren’t going to know whether they need
DID or ground start lines, for example, so you will have to make those
decisions based on your understanding of the client’s needs.
Planning An Installation 2 
- 1 
						

							2.2In determining what equipment to order, keep the client’s long-range
orderingIplans in mind. Make sure that you can add lines or stations when the
time comes to do so.
The Right 1.
Remember that the two auxiliary/universal slots are the only slots that
Equipmentaccommodate Auxiliary boards. If you install a line or station board in
these slots, there will be no room for Auxiliary boards when the client
needs them. If at all possible, reserve at least one of the
auxiliary/universal slots for an Auxiliary board, and put the station and
line boards in the universal and line slots respectively.
For assistance in choosing the right boards, consult Comdial
publication 
GCA40-070 “Configuration and Planning.” Also see the
DXP Software Request Form. Both of these publications are in the
DXP System Manual. You can find the product codes for DXP parts
on the last page of 
GCA40-112 “DXP General Description.”
You may also want to purchase another Comdial videotape series
entitled “How to Sell Business Telephone Systems (V-l OC), 
” which
provides not only marketing and programming tips but also gives
practical examples of the types of questions to ask a client.
2 
- 2 Planning An Installation 
						

							2.3
Evaluating
The
Installation Site
2.4
Planning The
Dedicated
Equipment
RoomAn important part of your pre-installation work is to map-out the
geography of the site. If you can, get up-to-date blueprints of the
building. If blueprints are unavailable, draw up your own rough floor
- Iplans and cross sections of the building.
Make sure that at a minimum you have all of the following
information:
lThe location of the equipment room.
lThe anticipated location of all of the various telephones.
lThe current location of the cable runs for pre-existing CO lines
and phone sets.
Comdial recommends that you use a dedicated equipment room for
the DXP installation. If you do have other equipment in the room,
make sure you check for radio frequency interference. If you aren’t
going to use an equipment room, make sure to install the DXP in a
low-traffic area where the equipment and wiring won’t be bumped or
knocked loose.
Keep in mind that the distance between the main cabinet and the
Telco/PBX must be 25 feet or less (Comdial recommends a nominal
distance of 7 feet).
You must also install the equipment in an area whose temperature
stays between 32 and 122 degrees fahrenheit with less than 90 percent
non-condensing humidity.
An important element to the equipment room is the AC power;
hopefully, your equipment room has accessible outlets, if not, make
sure to have a professional electrician install one. The DXP requires a
dedicated 
117V AC 15 AMP circuit for installation. We need to make
sure that the outlet is within four feet of where we mount the DXP so
that the power cord reaches.
(For more on this, read 
GCA40-112, DXP General Description)
Planning An Ins talla tion 2 - 3 
						

							2.5
Using The Right
ToolsBefore you begin your system layout, you need to make sure that you
have all the right tools for a proper installation. Most of you have
installed telephone systems before, so none of this information is new
to you. In truth, you’ll probably have a standard list much longer than
the one we provide. Use these items as an essentials list, a bare
minimum of what you should have to install a system. You’ll need the
following:
lfasteners, either wood screws or toggle bolts, to attach the
common equipment to the backboard,
.
a screwdriver to match the wood screws,
.
an electric drill,
lpunch-down tool for fastening wires to a type-66 block,
lcrimping tool for 623-type modular plugs,
l3-prong AC circuit tester,
l
# 10 or 12 gauge insulated, solid-copper wire for grounding the
system,
.
all associated surge protection-AC, line, and serial,
la connectorized female 25-pair cable (at least ten feet long) for
each station and line board (note that loop-start line boards use
modular jacks for line connections)
This list is a minimum of what you’ll need. Your own experience will
guide you in selecting what is necessary.
2 
- 4 Planning An Installation 
						

							DXP Correspondence ManualPlanning An lnstalla tion
2.6
PreparingAn
MDF Diagram~Begin the layout plan by determining where each piece of equipment
will mount on the Main Distribution Frame (MDF). Standard 3/4-inchplywood usually works well as the main distribution frame. Using an
~  MDF helps us in several ways: it provides stability for the
~system-many office walls are drywall, and the MDF helps ensure
that your moorings won’t slip or shift in the drywall; the MDF also
,isolates the system from the wall, keeping condensation off the
equipment; lastly, the MDF makes moving the equipment relatively
pain-free.
In planning 
the layout of the MDF, you should diagram all of your
various cable runs in detail and consider where you should position
the following devices:
-the main cabinet-a modem,
-the expansion cabinet,
-the surge protector(s),
-the ground cables,
-station blocks,
- line blocks,
-the music source,
-a paging amplifier,
-the battery backup
-an OPX-X,
-a VMI-X,
-an ATI-D- 1 PT,
-and finally, the cabling
and wiring
requirements.
Even if you are not installing these devices, allocate space for them on
the MDF because they may be installed later.
As far as the location of the DXP on the board, you will want to put it
in the left-hand comer since all of the wiring comes out on the right
side of the cabinet. If you are going to mount the battery backup on
the left, be sure to leave adequate room. Whether you are using an
expansion cabinet or not, you should leave enough room on the MDF
for both cabinets. The expansion cabinet always mounts above the
main cabinet. The cabinets have to be no more than two inches apart
to allow the cables from the interface boards to connect.
Make sure all of your cable runs are as short as possible. When you
wire your stations, remember that the length from the DXP to the
stations depends upon the type of station and the gauge of wire (see
section 1.8 in this manual for more information). You also want to
keep the wires as far away from fluorescent lighting as possible. If you
do have to cross these lights, run the wires perpendicular to the lights
in order to keep interference negligible.
IFor more on DXP specifications, see 
GCA40-112, “DXP General
Description. 
”
Planning An lnstalla tion 2 - 5 
						

							2.7Checking The
HardwareIt’s a good idea to check all of your hardware thoroughly before you
get to your installation site. Unpack all of the equipment and make
sure that there has been no damage during shipping; then test each
piece individually to make sure it operates correctly. Use the .
following list as a general guideline for pre-installation testing.
-Check the power supply voltages of both the main cabinet and
expansion cabinet’s power supply. Refer to 
IMI66-085 for the
correct power supply voltages.
-Once you know that the power supply voltages are correct,
slide the power supply into its location and plug it in. You can
now begin installing and testing your boards. All of the boards
are shipped in static-safe bags. Make sure you are in a
static-safe area and wearing a static-discharge wrist strap
before you handle any of the boards or cards.
-Visually inspect each board when you take it out of the box to
make sure there are no visible defects and to make sure you
have the correct board.
-Begin testing with the CPU and Services board (the RAM and
software cards must be installed). When testing the CPU
board, make sure that DIP switch 8 is in the “on” position.
With both boards inserted and seated properly, turn on the
power supply and watch the LED on each board: Remember
that many of the boards have a different LED flash rate to
indicate proper operation.
Read Section One of this manual for LED light indications. It’s
a good idea to test all of the boards in the actual slots where
they will be installed, if for no other reason than to make sure
you have planned the configuration accurately. By testing all
of the boards, you also make sure that each of the 
DXP’s slots
is fully functional.
2 - 6 Planning An Installation