Comdial Dxp Correspondance Instructions Manual

							-If you do have a board malfunction, turn the power back off
and re-seat the board; if you didn’t insert the mounting screws,
do so. Power the system back up and check the boards again. If
you still have a malfunction, try inserting a different CPU or
services board; if the other board works, you know there is a
problem with your original board. Should you experience any
of these malfunctions, contact your Comdial technical-services
representative for more troubleshooting tips and technical
support.
-Always remember to turn the power off before you insert the
next board to prevent damaging the boards. Some of the
boards, the station and line boards specifically, have pre-power
jacks that allow you to work with the power on. Other boards,
like the AUX. board, require that you have the power off
before doing any work. It’s a good idea to turn the power off
just in case.
Planning An installation 2 
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							Planning An Ins talla tionDXP Correspondence Manual
2.8
Testing The
Stations
2.9
Concluding
Chapter TwoWith your station boards installed, do a quick check on the digital
stations themselves. Plug each station into a station port and then use a
digital armiger (you can purchase these from any supply house). Plug
the 
armiger into the board and test each port on the board with-atelephone that you know is operable. Then unpack each of the
telephones and test them on one of the station ports. Testing the
boards one-by-one this way not only guarantees that all of our
equipment works as it should, but it also makes it immediately
obvious which board is the problem should a malfunction arise.
Plus, you’ll know all of this information well in advance of your
installation date.
This section of the training series has given you a foundation for
planning and evaluating your installation site. If you are unsure about
any of this information, rewind tape two, Planning an Installation, and
reread this section of the manual.
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							DXP Correspondence ManualPlanning An installationChapter Two1.
ReviewIn evaluating the DXP installation site, what are three things
that you should always consider before you begin a new
installation?.
Questions
2.In planning for an installation, you must also consider
peripherals such as (name four).
3.In considering what components you need to order for the
system:
The number of telephones will determine how many
.The type of telephones will determine whether you use
,
, orboards.The number of lines will determine how many
The total number and type of boards will determine whether
you will need
.
4.When you are installing the boards, always place the first two
station boards in the auxiliary/universal slots to allow for
future expansion, true or false?
5.What is the required temperature range of a dedicated
equipment room?
6.The DXP requires acircuit for installation.
7.You need to make sure that the DXP is within 25 feet of the
outlet; true or false?
8.Name five tools that Comdial recommends you to have for an
installation.
I
Planning An Ins talla tion 2 - 9 
						

							9. MDF stands for.10. Give three reasons for putting your equipment on an MDF?
11. The cabinet should be located to the right of the AC power
source to minimize the cabling distances; true or false?
12. Before you connect the power for testing, you should always
perform a
?13. What should you do if you have a board malfunction during
your testing?
14. What are the first two boards that you should install when
testing your system?
15. You should use a
to check your digital stations.
16. In the second video of the DXP training series, the narrator and
installer are putting a DXP in what type of business? What is
the business’s name?
17. Video Two introduces an installer and programmer; what is his
name?
2 
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							Installing The DXPChapter Three: Installing The DXP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-I
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8Introducing Chapter Three...................................................................3-l
Mounting The Main Cabinet................................................................3-2MountingThe ExpansionCabinet.......................................................
3-3GroundingTheSystem.........................................................................
3-3Installing The Power Supply................................................................
3-4
ExpansionCabinet PowerSupply................................................3-5Connecting A Battery Backup..............................................................
3-6Installing The Boards...........................................................................
3-7
Boardlocations............................................................................
3-7
Using The Pre-power jack............................................................3-7
ServicesBoard.............................................................................3-S
CPUBoard...................................................................................
3-8
InterfaceBoards...........................................................................3-8
StationBoards..............................................................................3-8
Line Boards..................................................................................3-9
AuxiliaryBoard............................................................................3-9
ConferenceBoard........................................................................3-9ConnectingTheLines.........................................................................
3-10
Surge Protection.........................................................................3-10 
						

							Chapter ContentsDXP Correspondence Manual
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17Connecting The Stations.....................................................................3-11Station Wiring
............................................................................3-l 1Testing The Stations...........................................................................
3-12.Connecting An External Paging Device............................................
3-13Connecting A Modem........................................................................
3-14Connecting A Music Source...............................................................
3-15Installing The Ring Generator............................................................
3-15Connecting The PC Attendant............................................................
3-16
PCAttendantWireRotation......................................................3-l 6
PCAttendantlineConnection....................................................3-l 6Connecting A Printer..........................................................................
3-17Concluding Chapter Three.................................................................
3-18ChapterThreeReview
Questions.......................................................3-19Chapter Contents 
						

							DXP Correspondence Manual
Installing The DXP
Installing The DXP
3.1
Introducing
Chapter ThreeInstalling a DXP is relatively quick and easy because by the time you
begin the installation you will have already done much of the
preliminary work. When you get to your installation site, you will
have gone through many of the most crucial steps:
-selected the correct hardware,
-chose the telephones and lines,
-configured the equipment room,
-and positioned the equipment on the MDF.
When you have completed this preliminary work and checked all of
the hardware to make sure that it operated properly, you are ready to
install the system. When you have finished with this section of the
training, you should be acquainted with all of the following:
- hardware installation, including the cabinets, boards, modem,
and ring generator,
- DXP power requirements,
-station installation,
- line and station wiring,
-and finally, the peripheral equipment, including the paging
amplifier, external music source, SMDA printer, and PC
Attendant.
Installing The DXP 3 - 1 
						

							Installing The DXPDXP Correspondence Manual
3.2
Mounting The
Main CabinetComdial recommends that you mount both cabinets on a
main-distribution frame (3/4-inch plywood works well). Before you
begin mounting the equipment, decide upon the overall layout and
draw outlines of each piece of equipment on the backboard.
.When you secure the backboard to the wall, make sure the screws go
through the studs in the wall and not just through the sheet rock or
wall covering. A fully-loaded DXP can weigh from 80 to 100 pounds,
so the stability of the mounting is crucial. Mounting the backboard to
the wall studs provides all the stability the DXP needs.
Remember to mount the cabinet on the left side of the MDF; all of the
wiring connections are on the right side of the main cabinet, so putting
the cabinet on the left keeps the wiring as short as possible.
-The DXP main cabinet has six screw-mount openings. These
mounting holes are approximately 24.5 inches apart.
-Insert the top two mounting screws into the backboard and
tighten them within approximately 
l/4-inch of the mounting
surface. You may have to drill these holes ahead of time,
depending upon your mounting surface.
-Hang the cabinet on the top screws, sliding it down until it
hangs securely.
-Then, insert and tighten the remaining four screws through the
mounting tabs located on the lower edge of the cabinet.
-Finally, tighten all six screws until they are flush with the
DXP. The screws for the DXP itself only need to go through
the backboard to ensure stability.
-If you are going to mount an expansion cabinet, remove the
access plates from the top of the main cabinet; this is where
you will run the connecting cables between the two cabinets.
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							DXP Correspondence ManualInstalling The DXP3.3
Mounting The
Expansion
Cabinet
Grounding3.4
The
SystemThe installation of the expansion cabinet is basically identical to that
of the main cabinet. The mounting screws for the expansion cabinet
are 18 
s/r6 inches apart. You must always install the expansion cabinet
above the main cabinet-no exceptions. Remember that you need to
keep the two cabinets within two inches of one another to connect the
cable for the two interface boards. Once you have secured both
cabinets to the MDF, you need to ground them to an earth-ground (see
section 3.4, Grounding The System).The DXP system has internal secondary surge protection on all line
ports, and in order for this protection to be effective, you must connect
the cabinets to a reliable earth ground such as a metal cold water pipe
or a building frame ground. The ground stud is located on the side of
the main cabinet. You can use 
# 10, or #12 gauge solid copper wire
for grounding.
Run the ground wire from the expansion cabinet down to the main
cabinet and finally to the earth ground. Ideally, the grounding wire
should be shorter than 20 feet. Grounding the system provides
secondary line surge protection, and AC surge protection; it also
serves as the ground for ground start, DID, and E and M tie lines. (For
information on primary surge protection devices, see Section 3.8,
Installing The Lines).Installing The DXP 3 
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							Installing The DXPDXP Correspondence Manual3.5
Installing The
Power SupplyThe power supply for the DXP’s main cabinet (DXPSM) and
expansion cabinet (DXPSX) are shipped separately and require some
installation. During your initial preparation, you made sure that the
DXP cabinet would be mounted no further than four feet away-from a
dedicated 
117V AC 15 AMP circuit, with a third-wire ground on a
standard electrical outlet. To avoid power fluctuations caused by other
electrical appliances, it’s best not to install anything but the DXP
system on the outlet. Always use an AC surge protector to protect the
DXP from fluctuations in the AC power. Since the AC power cord is
only four feet long, make sure to mount the surge protector on the left
side of the main cabinet.
Also, to avoid an accidental power loss, make sure the outlet doesn’t
have a switch to turn off power. After you have chosen your dedicated
outlet, always do a voltage check on the outlet before you plug in the
system. To check the voltage using an AC Volt meter, first check the
voltage between the neutral and the “hot” side of the outlet; the
reading should be between 90 and 129 VAC. If the voltage range is
beyond this specification, contact a qualified electrician immediately.
-The power supply slides into the slot on the left side of the
cabinet; it has two openings which slide over the two metal
posts on the front of the DXP cabinet.
-Attach the two hex-nuts through the slots on the front of the
power supply and into the DXP cabinet.
-Install the remaining screw in the back of the power supply
and into the cabinet. Route the power cord through the slot on
the side of the cabinet. (for more information on the main
cabinet power supply, see 
IMI66-085.)
-Remember to connect the power to a surge protector and not
directly to an outlet.
3 
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