Comdial Dxp Correspondance Instructions Manual

							DXP Correspondence ManualInstalling The DXP3.13
Connecting A
Music Source
3.14
Installing The
Ring GeneratorYou can connect a maximum of two customer-supplied music sources
to the DXP to provide background music and music on hold. The
music sources connect to the jack on the services board. The input
impedance of the music interface is approximately 500 ohms. You can
create a special announcement on hold for outside callers. Remember
that it’s illegal to use a radio station as your music-on-hold.
The ring generator 
(DXRNG) provides ringing voltage and message
waiting voltage to the industry standard devices. Remember that you
need a ring generator in each cabinet that has an IST board. The ring
generator mounts directly above the power supply in either cabinet,
and it plugs into the backplane. You must have a ring generator in
each cabinet that you use industry standard telephone boards. 
						

							3.15
Connecting The
PC AttendantThe PC Attendant requires two loop-start line ports, one serial data
port, and one logical station port. Connect the two line ports for audio
connection to the DXP, one for transmit and one for receive, and the
serial data port for the data communication. You don’t need 
to-wirethe station port, but we do have to assign it to the PC Attendant in
programming. Having a station port assigned provides a logical port to
use for programming station features on the PC Attendant.
We’ll start with the serial connection from the serial data port on the
DXP to a standard 6-conductor modular jack. When connecting the
serial data port, keep in mind that you must to have an odd number of
wire rotations to ensure that the roll-over in a standard line cord
remains intact.
PC Attendant Wire RotationConnect the data port on the DXP to a 6-conductor modular jack using
a standard 6-conductor line cord; Comdial recommends 3-pair,
twisted, shielded, 24-gauge wire from this modular jack to the PC
Attendant’s location. The wires are color coded, and at the DXP end
you should keep the colors consistent, wiring red to red, green to
green, and so on. At the PC Attendant location, install another
6-conductor modular jack. Bring the wires from the first modular jack
and connect them the the modular jack at the PC Attendant location,
but rotate the color coded connections: red to green, green to red, and
so on. Now connect the 
g-pin connector supplied with the PC
Attendant to this modular jack with a 6-conductor line cord and your
connection is complete. Because you have rolled our house wiring, the
transmit data now connects with your receive data. Keep in mind that
the connection between the PC Attendant and the DXP must be 500
feet or less.
PC Attendant Line ConnectionThe PC Attendant line connection is just like any other line
connection. For the PC Attendant you need to use Loop-start lines.
You also need to make sure that the lines are paired; 1 and 2, or 3 and
4, for example. With all of your wiring done, check the PC Attendant
to see if you have communication.
The 
DXP’s battery backup does not provide backup power to any of
the peripheral equipment, like the PC Attendant, so you might want to
purchase a secondary uninterrupted power supply, which would also
provide AC surge protection. Should there be a power-outage, the PC
Attendant will still be able to process all of the calls for the facility. 
						

							DXP Correspondence ManualInstalling The DXP3.16
Connecting A
PrinterYou can connect a serial-data printer for SMDA records. You can
connect the printer to any serial data port on the DXP, but serial data
port two is defaulted for a printer. If your printer is not near the DXP,
~  you must put one modular jack on the wall next to the DXP and
another next to the printer. Wire these two together with 24-gauge,
shielded wire, making sure to rotate the wires. The printer only
requires the transmit data and signal ground wires. The handshaking
connection usually isn’t necessary unless you are running at more than
2400 baud. Check your printer manual for printer baud rate
information. You’ll have to provide your own 
25pin connector for the
printer.
Installing The DXP 3 
- 17 
						

							3.17
Concluding
Chapter ThreeThat concludes the installation section of the training. Before you
move on to programming chapter, complete the questions on
installation. If you are unsure about any of the installation procedures,
review part three of the training series, Installing the DXP, and rei-ead
this chapter. When you’ve finished, you’ll be ready to move on to
Chapter Four, Programming the System. 
						

							DXP Correspondence ManualInstalling The DXPChapter Three
Review
Questions1. A fully loaded DXP can weigh as much as
.2. The DXP main cabinet has
which are approximatelyscrew-mount openings,
inches apart.
3. How much space can you leave between the expansion cabinet
and the main cabinet? Why?
4. You can install the expansion cabinet above or to the left of the
main cabinet; true or false?
5. The grounding wire should be
length of less thanwire with a maximum
6. The power supply requires a dedicated
?7. You don’t need to use an AC surge protector unless you have
an expansion cabinet; true or false?
8. You only need to check the voltage on the main cabinet power
supply unit, true or false?
9. How is the expansion cabinet power supply different from that
of the main cabinet?
10. Always mount the optional battery pack above the expansion
cabinet, true or false?
IInstalling The DXP 3 
- 19 
						

							11. What is the correct output voltage of the DXP power supply?
12. The BBLDX provides up to 12 hours of battery backup; true or
false?
13. Describe two measures you can take to prevent electrostatic
discharge damage to the boards.
14. The boards should be inserted with the power on, true or false?
15. What prevents you from inserting a board in the wrong slot?
16. What two things must you attach to the CPU board before you
install it?
17. The station ports and line ports are both numbered the same
way from left to right on the designation strip of the card cage;
true or false?
18. The interface boards are connected with?19. If you ever have to insert a station or line board when the
system is under power, you must
20. List two of the four Comdial safety guidelines for working
with telephone lines.
3 
- 20 Installing The DXP 
						

							DXP Correspondence ManualInstalling The DXP
21. To prevent damage from transient-voltage spikes on line
jumper cables, you should install
22. When installing lines, it’s important to remember that ground
start lines are
23. Station connections are through.24. The polarity of digital station connections is essential; true or
false?
25. At the station block, you should tie unused station pairs to
ground, true or false?
26. You can install an external paging device on either the
Services or CPU board; true or false?
27. Which serial data port must you use to connect the modem?
28. Setting DIP switch 7 on the modem to “on” accomplishes
what?
29. The input impedance of the music interface is
approximately .
30. You only need one ring generator, no matter how many IST
stations you have; true or false?
I 
						

							Installing The DXPDXP Correspondence Manual
3 
1. Having a station port for the PC Attendant does what?
32. Explain what it means to “roll” the house wiring for the PC
Attendant.
33. The maximum distance between the DXP cabinet and the PC
Attendant is .
34. Which serial data port is defaulted for an 
SMDALSMDRprinter?
35. In the DXP video series, does the installation use the Scout
9OOMX digital wireless telephones?
36. How many men are shown installing the DXP in the video?
37. Why did the installation site in the video use an external
paging device?
3 - 22 Installing The DXP 
						

							DXP Correspondence Manual
Chapter Con tentsL
4
Programming The DXPChapter Four: Programming The DXP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*..................4-1
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8Introducing Programming
....................................................................
4-l
Using Other publications
......................................................................
4-2Two ways to Program...........................................................................
4-3Connecting Data Devices
.....................................................................
4-4Using A Modem...................................................................................
4-5Using The DXP Menus
........................................................................
4-6Accessing the Main Menu
....................................................................
4-7Understanding The Main Menu
...........................................................
4-8Chapter Four Review Questions
...........................................................
4-9Chapter Con tents 
						

							DXP Correspondence Manual
Programming The DXPProgramming The DXP
4.1
Introducing
ProgrammingThe DXP comes from the factory already programmed with certain
features. However, you will frequently have to alter or add on to these
“default” settings to maximize the DXP’s capabilities (see section 5.2,
Master Clearing The System, and section 5.3, Setting The System
Defaults, for more information.) As the DXP installer and
programmer, you will be responsible for knowing all of the system’s
features and capabilities (for more information on the system features,
see 
GCALCO-112, DXP General Description).
This chapter discusses the basics of DXP programming, including the
data device connections and on-screen programming options. Use
IMI66-111, the DXP programming manual, as a reference as you
continue through this correspondence manual.
DXP Correspondence Manual 4 
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