Comdial Dxp Plus Instructions Manual

							2.2 Installing Station Boards In The Equipment Cabinet
1. Normally you should first disconnect the optional battery back-up assembly from the main cabinet power
supply and then disconnect the AC power cord from the AC outlet; however, when necessary, you can install
a station board in an operating system. If you must do this, connect one end of a standard telephone handset
coil cord to the precharge port on the power supply. During step 5, you will connect the other end of this coil
cord to the precharge jack on the station board.
2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit.  Be sure that the strap is
touching bare skin and is not isolated by clothing. Connect the wrist strap cord between the wrist strap and an
AC or earth ground
NOTE: With the common equipment in the installed position, the ground lug on the side of the cabinet is an
appropriate grounding point since it should have a heavy ground wire connected between it and a good
earth ground.
3. Each station board is supplied in a static protection bag for safe keeping. When you are ready to install the
circuit board, remove it from its static protection bag.
4. Locate the proper board slot.
·On DXP Plus systems the station boards connect to any universal slot.
NOTE: On DXP Plus systems, do not install a station board at the right-most board slot in the second (or lower)
expansion cabinet. The system reserves this slot for internal use.
5. If you are installing the station board in an operating system, connect the free end of the precharge cord that
you installed in step 1 to the precharge jack on the station board.
6. Orient the station board with its top and bottom guides in main cabinet board cage. and press the board firmly
until its board edge connection properly mates with the connector on cabinet’s backplane. If you connected a
handset cord between the pre-charge port on the power supply and the jack on the circuit board, disconnect
the cord after installing the board.
CAUTION
When pressing circuit boards into place, press them only at the extractor lever locations.
If you apply pressure at other locations you may damage the board assembly.
7. Repeat steps 3 and 4 until all circuit boards are installed.
8. Make a final inspection to ensure that all circuit boards are, oriented correctly and mated properly.
9. Install and tighten the supplied screws to secure the circuit boards to the board cage.
10. Each station board includes a ferrite collar. Snap the ferrite collar around the cable station to provide
protection against radio frequency interference.
IMI89–173 Installing The Analog Station Board
4 – Installing The Analog Station Board 
						

							Viewing A Typical Station Board Installation
Static Discharge Wrist StrapPower Supply
Pre-charge Port
Analog or Digital
Station Board Station Board
Pre-charge
Port Pre-charge
Cable For
Station Board
Installation
During
Power Up
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Installing The Analog Station Board IMI89–173
Installing The Analog Station Board – 5 
						

							3.0 Connecting The Stations
Connections between the telephone stations and the common equipment station boards are typically via type
66M-xx connector blocks that are cable connected to 50-pin male connectors on the station boards.
The American Wire Gauge (AWG) size of the station wiring determines the maximum distance allowed from the
common equipment to the stations. The following chart details this relationship.
Station Types Wire Gauge
20 AWG 22 AWG 24 AWG
Analog Multiline Telephone 2500 Feet 2000 Feet 1500 Feet
Analog Single-Line
Proprietary Telephone4000 Feet 3500 Feet 3000 Feet
If spare conductors exist in the cables that you run between the station boards and the 66M-xx connector blocks, it
is a good practice to connect the spare conductors to earth ground. Doing this may help prevent the spare
connectors from inducing radio frequency and/or AC interference into the system.
Remember, you should snap a ferrite collar around each station cable to provide protection against radio
frequency interference.
CAUTION
The polarity between the individual wires in a particular voice or data pair is not critical; however, do not
connect the voice circuits to the data circuits.
3.1 Installing DSS/BLF Consoles
Install a DSS/BLF Console at any station port in the system as a companion to a system telephone.
·The DXP Plus systems support a maximum of four consoles for each telephone and there is no limit to the
maximum number of consoles that you can install on a system. Typically, the console capacity is equal to
one-half of the total station capacity of the system.
·The installed distance limit between the station board and the console is the same as that allowed for an analog
or digital telephone.
When you install a DSS/BLF console, you must program define the station port as a console port.
IMI89–173 Installing The Analog Station Board
6 – Installing The Analog Station Board 
						

							Viewing A Typical Station Connection
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CLIP TERMINALS
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1 25
Typical Station
Connector Block
Ferrite
Collar Female 50-pin
Cable Connector
J1 (Male 50-pin
Connector) Typical Analog
Station Board
J2 (Male 50-pin
Connector)
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Installing The Analog Station Board IMI89–173
Installing The Analog Station Board – 7 
						

							3.2 Detailing The Station Connections
3.2.1 Detailing Analog Station Board J1 Connections
25-Pair Connections For J1 Station Connections Station Identification
Wire Color Pair Pin
No.Clip
Term.Pair Wire Color Station Location
White-Blue 1 26 1 Voice Path Green
1 Blue-White 1 2 Red
White-Orange 2 27 3 Data Path Yellow
Orange-White 2 4 Black
White-Green 3 28 5 Voice Path Green
2 Green-White 3 6 Red
White-Brown 4 29 7 Data Path Yellow
Brown-White 4 8 Black
White-Slate 5 30 9 Voice Path Green
3 Slate-White 5 10 Red
Red-Blue 6 31 11 Data Path Yellow
Blue-Red 6 12 Black
Red-Orange 7 32 13 Voice Path Green
4 Orange-Red 7 14 Red
Red-Green 8 33 15 Data Path Yellow
Green-Red 8 16 Black
Red-Brown 9 34 17 Voice Path Green
5 Brown-Red 9 18 Red
Red-Slate 10 35 19 Data Path Yellow
Slate-Red 10 20 Black
Black-Blue 11 36 21 Voice Path Green
6 Blue-Black 11 22 Red
Black-Orange 12 37 23 Data Path Yellow
Orange-Black 12 24 Black
Black-Green 13 38 25 Voice Path Green
7 Green-Black 13 26 Red
Black-Brown 14 39 27 Data Path Yellow
Brown-Black 14 28 Black
Black-Slate 15 40 29 Voice Path Green
8 Slate-Black 15 30 Red
Yellow-Blue 16 41 31 Data Path Yellow
Blue-Yellow 16 32 Black
Yellow-Orange 17 42 33
Orange-Yellow 17 34
Yellow-Green 18 43 35
Green-Yellow 18 36
Yellow-Brown 19 44 37
Brown-Yellow 19 38
Yellow-Slate 20 45 39
Slate-Yellow 20 40
Violet-Blue 21 46 41
Blue-Violet 21 42
Violet-Orange 22 47 43
Orange-Violet 22 44
Violet-Green 23 48 45
Green-Violet 23 46
Violet-Brown 24 49 47
Brown-Violet 24 48
Violet-Slate 25 50 49
Slate-Violet 25 50
The analog station board does not provide station
connections on J1 connector pairs 17–25. Remember, you
should connect all unused conductors in your house cable
to earth ground.
IMI89–173 Installing The Analog Station Board
8 – Installing The Analog Station Board 
						

							3.2.2 Detailing Analog Station Board J2 Connections
25-Pair Connections For J2 Station Connections Station Identification
Wire Color Pair Pin
No.Clip
Term.Pair Wire Color Station Location
White-Blue 1 26 1 Voice Path Green
9 Blue-White 1 2 Red
White-Orange 2 27 3 Data Path Yellow
Orange-White 2 4 Black
White-Green 3 28 5 Voice Path Green
10 Green-White 3 6 Red
White-Brown 4 29 7 Data Path Yellow
Brown-White 4 8 Black
White-Slate 5 30 9 Voice Path Green
11 Slate-White 5 10 Red
Red-Blue 6 31 11 Data Path Yellow
Blue-Red 6 12 Black
Red-Orange 7 32 13 Voice Path Green
12 Orange-Red 7 14 Red
Red-Green 8 33 15 Data Path Yellow
Green-Red 8 16 Black
Red-Brown 9 34 17 Voice Path Green
13 Brown-Red 9 18 Red
Red-Slate 10 35 19 Data Path Yellow
Slate-Red 10 20 Black
Black-Blue 11 36 21 Voice Path Green
14 Blue-Black 11 22 Red
Black-Orange 12 37 23 Data Path Yellow
Orange-Black 12 24 Black
Black-Green 13 38 25 Voice Path Green
15 Green-Black 13 26 Red
Black-Brown 14 39 27 Data Path Yellow
Brown-Black 14 28 Black
Black-Slate 15 40 29 Voice Path Green
16 Slate-Black 15 30 Red
Yellow-Blue 16 41 31 Data Path Yellow
Blue-Yellow 16 32 Black
Yellow-Orange 17 42 33
Orange-Yellow 17 34
Yellow-Green 18 43 35
Green-Yellow 18 36
Yellow-Brown 19 44 37
Brown-Yellow 19 38
Yellow-Slate 20 45 39
Slate-Yellow 20 40
Violet-Blue 21 46 41
Blue-Violet 21 42
Violet-Orange 22 47 43
Orange-Violet 22 44
Violet-Green 23 48 45
Green-Violet 23 46
Violet-Brown 24 49 47
Brown-Violet 24 48
Violet-Slate 25 50 49
Slate-Violet 25 50
The analog station board does not provide station
connections on J2 connector pairs 17–25. Remember, you
should connect all unused conductors in your house cable
to earth ground.
Installing The Analog Station Board IMI89–173
Installing The Analog Station Board – 9 
						

							3.3 Detailing Station Call Announce Parameters
The DXP Plus systems place no limits (other that the distance constraints stated previously) on telephone
placement and arrangement within the system; however, when placing telephones that require call announcing
capability, consider the parameters detailed in this call announce matrix table.
Call Announce Matrix
Receive Call Announcements
Digital
SpeakerDigital
MonitorDigital
Single
LineAnalog
SpeakerAnalog
MonitorAnalog
Single
LinePC
Atten.Scout
900MXIndustry
Standard
Digital
SpeakerYES YES NO YES NO NO NO NO NO
Digital
MonitorYES YES NO YES NO NO NO NO NO
Digital
Single
LineYES YES NO YES NO NO NO NO NO
Analog
SpeakerYES YES NO YES YES NO NO NO NO
Analog
MonitorYES YES NO YES YES NO NO NO NO
Analog
Single
LineYES YES NO YES NO NO NO NO NO
PC
Atten.YES YES NO YES NO NO NO NO NO
Scout
900MXYES YES NO YES NO NO NO NO NO
Industry
StandardYES YES NO YES NO NO NO NO NO
3.4 Understanding The DXP Plus Logical Numbering
Because there are no dedicated station or line ports in the DXP Plus, the system uses an automatic configuration
method to logically number its stations and lines. Automatic configuration occurs after you perform a master clear
on the system.
How automatic configuration works
With automatic configuration, the system does a search for all installed station and line boards in the main and
expansion cabinets, and assigns a logical number for each provided station and line encountered during the search.
The search begins in the main cabinet at the left-most universal slot and proceeds left to right. The search then
moves to the upper expansion cabinet where it searches left-most slot to right-most slot. The search finally moves
to the lower expansion cabinet where it again searches left-most slot to right-most slot. When automatic
configuration is finished, the system has logically numbered all station and line ports in ascending order from the
left-most slot to right-most slot throughout the entire system.
Originate Call Announcements
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							How logical number and physical location relate to one another
The logical number of a station or line corresponds to its relationship to other stations or lines in the system but is
not dependent upon the board’s placement in the cabinet. The physical location of a station or line corresponds to
the order of the system’s board slots. The main cabinet contains slots 1–9, the upper expansion cabinet contains
slots 10–20, and the lower expansion cabinet contains slots 21–30. Therefore, even if the first encountered station
board is located in slot five of the main cabinet, the system still assigns logical number one to the first station
provided by that board. During installation, you can skip slots. For example, you can install eight-line, loop start,
line boards in only slots one and 30 if you wish. In this case, slot one yields logical line numbers 1–8 and slot 30
yields logical line numbers 9–17.
Where you can place circuit boards
Each installed board requires timing circuits equal to its capacity. For example, a 16–station board requires 16
timing circuits, an eight–line loop start line board requires eight circuits, and a fully configured T1 trunk board
requires 24 timing circuits. In the DXP plus, each universal slot provides 32 timing circuits. Because of this
timing circuit provision of each slot, you can place any station or line board at any slot location with no
restrictions.
Adding boards without renumbering
If you install or relocate a station or line board, this board does not operate until you take appropriate
programming action. If you use an available open slot for adding or relocating a board, that board’s stations or
lines assume logical numbers in sequence after the system’s last assigned logical station or line number. For
example, if the system’s last logical station number is 24, the logical numbers of the newly installed board’s
stations begin at logical number 25.
After you remove a board and delete it through programming, that board’s logical numbers are available for
reassignment. This means that you can remove a board, add or move another board, take the appropriate
programming action, and have the stations or lines of the added or relocated board assume the logical numbers
made available by the removed board. For example, if the system’s last logical number is 64 and you remove the
board providing stations with logical numbers 1–16 and delete it through programming, the stations on an added
board assume logical numbers beginning with 1 instead of 65. However, if you remove and program delete an
eight-station board and add a 16-station board, the first eight stations stations on the added board assume logical
numbers 1–8 and the last eight stations assume logical numbers 65–72.
Remember, should you master clear the system, the automatic configuration feature logically numbers all station
and line ports in ascending order from the left-most slot to right-most slot throughout the entire system. This
action renumbers those station and lines provided by boards that you have added or relocated since you last
performed the system master clear.
3.4.1 Understanding Station Pairing
Station ports are paired ODD/EVEN, beginning with the lowest directory number 101/102, 103/104, etc., for data
and for overload protection. The odd port is the positive voltage (+) port and the even port is the negative voltage
(-) port.
Installing The Analog Station Board IMI89–173
Installing The Analog Station Board – 11 
						

							4.0 Installing Subdued Off-Hook Voice Announce
Wiring For Analog Stations
An analog multiline telephone has subdued off-hook voice announce (SOHVA) capability built into it. This
telephone contains a 6-position, 3-pair station jack for SOHVA connection.
To enable SOHVA as a system feature for analog stations,
4you must use 6-wire, twisted-pair house cable to connect two data-paired station ports to
a 625A2-6 station jack,
4you must connect the SOHVA-capable analog multiline telephone to the 625A2-6 station jack using
a 6-wire line cord,
4you must take programming action to configure the station ports to support SOHVA operation.
Make the installation per the following procedure:
1. Identify two data-paired ports on an analog station connector block (identify an odd-numbered port and its
even-numbered counterpart such as ports 103 and 104).
2. Use 6-wire, twisted-pair house cable and make the following connections:
(a) connect pins 3 and 4 (the inside pair) of a 625A2-6 station jack to the voice pair of the odd-numbered
station port.
(b) connect pins 2 and 5 (the outside pair) of the 625A2-6 station jack to the data pair of the odd-numbered
station port,
(c)  connect pins 1 and 6 of the 625A2-6 station jack to the voice pair of the even-numbered stration port,
(d) leave the data pair of the even-numbered station port vacant.
3. Using the Telephone Types programming selection from the stations programming menu, program the
odd-numbered station port to support the type of telephone that you will install there. Program the
even-numbered station port as UNDEFINED.
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12 – Installing The Analog Station Board 
						

							Making Subdued Off-Hook Voice Announce
Connections For Analog Multiline Telephones
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CLIP TERMINALS
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1 256 5 4 3 2 1
FRONT
VIEW
OF JACK
1  VOICE (PAIRED STATION)
2  DATA
3  VOICE
4  VOICE
5  DATA
6  VOICE (PAIRED STATION)
{
Typical Station
Connector Block Type 625A2-6 Connector
(Typical)
Voice Pair
(Paired Station)
Data Pair
Typical
Paired
Station
Ports No
Connection
Voice Pair
6-Wire
Twisted Pair
Cable
6-Wire
Line
Cord To Secure
Off-Hook
Voice Announce
Telephone
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Installing The Analog Station Board IMI89–173
Installing The Analog Station Board – 13