Comdial DSU II Attendant User Manual

DSU II Digital Telephone System IMI66–132

Installing The DSU II Digital Telephone System

Section Title........................................................................................................... Page

2.1 Considering the Mounting Requirements................................................2–4

2.1.1 Tools And Hardware ..............................................................................2–5

2.1.2 Underwriters Laboratories Installation Notice .......................................2–5

2.1.3 Hybrid Installation..................................................................................2–5

2.2 Mounting The Cabinet...............................................................................2–6

2.3 Making The AC Power Connection .........................................................2–8

2.3.1 Identifying The Fuses.............................................................................2–8

2.3.2 Grounding The System.........................................................................2–10

2.4 Connecting The Lines..............................................................................2–12

2.4.1 Detailing The Line Connections.......................................................... 2–14

2.4.2 Reassigning The Line Ports..................................................................2–14

2.4.3 Protecting The Lines.............................................................................2–14

2.5 Connecting The Stations..........................................................................2–16

2.5.1 Grounding The Unused Station Cables ................................................2–17

2.5.2 Relocating The Stations........................................................................2–17

2.5.3 Installing The Cable Clips....................................................................2–17

2.5.4 Connecting Stations To The J0408...................................................... 2–19

2.5.5 Connecting Stations To The J0816...................................................... 2–20

2.5.6 Connecting Stations To The J1632...................................................... 2–21

2.5.7 Wall Mounting The Telephone Stations...............................................2–23

Installing The DSU II Digital Telephone System 2 – 1

IMI66–132 DSU II Digital Telephone System

Section Title........................................................................................................... Page

2.6 Installing DSS/BLF Consoles..................................................................2–26

2.7 Connecting A Power Failure Station......................................................2–28

2.8 Using The Auxiliary Equipment Interface ............................................2–29

2.9 Common The Audible And Auxiliary Ringing Interface.....................2–30

2.9.1 Connecting Outside Lines ....................................................................2–30

2.9.2 Connecting Selected Ports....................................................................2–30

2.10 Using The External Paging Interface.....................................................2–32

2.11 Using A Line Port As An External Paging Interface............................2–33

2.12 Connecting Data Devices To The System ..............................................2–34

2.12.1 Making Modular Jack Data Connections .............................................2–34

2.12.2 Making The Common Equipment Data Connections.......................... 2–36

2.12.3 Connecting A Personal Computer For Remote Programming.............2–38

2.13 Using The Music Interface ......................................................................2–40

2.14 Using The Add-On Expansion Module..................................................2–41

2.14.1 Using The JM408 Module....................................................................2–41

2.14.2 Using The JM008 Module................................................................... 2–44

2.14.3 Installing An Add-On Expansion Module........................................... 2–48

2.15 Checking The System Installation..........................................................2–50

2.15.1 Checking The Resistance......................................................................2–50

2.15.2 Checking The Voltage..........................................................................2–50

2.15.3 Checking The General Operating Conditions ..................................... 2–51

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DSU II Digital Telephone System IMI66–132

Section Title........................................................................................................... Page

2.16 Isolating Failures......................................................................................2–51

2.16.1 Checking The System Status Indicator.................................................2–51

2.16.2 Testing The Stations.............................................................................2–51

2.17 Loading And Up-Grading The System Software..................................2–52

2.17.1 Introducing The Software Key .............................................................2–52

2.17.2 Introducing The Software Disks...........................................................2–53

2.17.3 Loading The Software ..........................................................................2–54

2.18 Installing The System Options And Accessories.................................. 2–60

2.18.1 Installing The Battery Back Up Assembly.......................................... 2–60

2.18.2 Installing the Analog Terminal Interface............................................. 2–64

2.18.3 Installing the Data Interface Unit .........................................................2–72

2.18.4 Supporting Caller Identification Service..............................................2–76

2.18.5 Supporting The Tracker Paging System...............................................2–80

2.18.6 Supporting DVA Operation..................................................................2–82

2.18.7 Installing The Personal Computer Interface Unit................................. 2-84

2.18.8 Connecting The Versatile Voice Processing Voice Mail System ........2–86

2.19 FCC Rules And Regulations .................................................................. 2–88

Installing The DSU II Digital Telephone System 2 – 3

IMI66–132 DSU II Digital Telephone System

2.1 Considering The Mounting Requirements

The following requirements will help you to install the DSU II digital telephone system.

Locate the equipment cabinet within four feet of an AC electrical outlet dedicated

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exclusively to the use of this equipment. The outlet must be a 117 VAC 15 AMP circuit with a third-wire ground supplied to a standard electrical outlet (NEMA 5–15R).

Mount the common equipment within 25 feet of the TELCO/PBX jacks. The recommended

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nominal distance is 7 feet. Choose a secure and dry mounting location that has adequate ventilation. The temperature

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range of the location must be within 32–122 degrees F (0–50 degrees C) and that the relative humidity is less than 90 percent, non-condensing.

If the mounting surface is damp or if it is made of concrete or masonry material, you must

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attach a backboard to the mounting surface for mounting the common equipment. Suitable mounting backboards are available commercially or you can construct one from 3/4-inch plywood by cutting it to size.

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DSU II Digital Telephone System IMI66–132

2.1.1 Tools And Hardware

You will need the following tools and materials to install the common equipment.

Fasteners—wood screws (1/4 x 1-inch round head), toggle bolts, or wall anchors,

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Screwdriver—to match fasteners,

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Electric drill—if prepared holes are required,

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Connecting tool—for fastening wires to a type-66 connector block,

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Crimping tool—for 623-type modular plugs,

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Volt/Ohm Meter.

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2.1.2 Underwriters Laboratories Installation Notice

Per The Underwriters Laboratories standard 1459, 2nd edition, be aware of the following precautions when installing telephone equipment that is to be directly connected to the telephone company network:

Never install telephone wiring during a lightning storm,

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Never install telephone jacks in wet locations unless the jack is specifically designed for

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wet locations, Never touch un-insulated telephone wires or terminals unless the telephone line has been

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disconnected at the network interface, Use caution when installing or modifying telephone lines.

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2.1.3 Hybrid Installation

Whenever a programmer assigns lines to line groups, the digital telephone system automatically assumes the hybrid mode. Your local telephone company may charge a higher monthly fee for operation of a hybrid system; therefore, the FCC requires that you report the equipment-type category designation number (KF for key system, MF for hybrid system) to the telephone company at the time of installation.

FCC Registration Numbers

Key System CVWUSA-61535-KF-E Hybrid System CVWUSA-61536-MF-E

Installing The DSU II Digital Telephone System 2 – 5

IMI66–132 DSU II Digital Telephone System

2.2 Mounting The Cabinet

After thoroughly reviewing Section 2.1 and fully understanding its subject matter, use the following procedure to mount the common equipment cabinet

1. Unpack and carefully inspect all equipment for shipping damage. Notify the shipper immediately of any damages that you find. Verify that the packages contain all parts and accessories needed for proper installation and operation.

2. If the mounting location requires a backboard, attach it securely to provide a stable mounting surface for the equipment.

3. Refer to Figure 2-1 or to the PP032-001 mounting template included in the literature that accompanies the common equipment cabinet for the locating dimensions required for the three mounting screws, and mark their locations on the mounting surface.

4. Drill holes in the mounting surface of a proper size to accommodate the hardware being used. If necessary, prepare these holes with inserts, anchors or other attachment devices as dictated by the type of mounting surface.

5. Insert the two top screws into the mounting surface and tighten them to within approximately 1/8-inch of the surface.

6. Hang the cabinet on the top screws using the mounting holes located on the rear of the cabinet. Note that these holes are elongated with an enlargement at one end. This feature allows the cabinet to snap down on the screws to secure the mounting when the cabinet is hung on them.

7. Insert a third screw through the mounting tab located on the lower edge of the cabinet and into the mounting surface, and tighten it into place.

8. Place the individual telephone stations as desired and in keeping with accepted industry and office standards. You can wall mount a telephone station if necessary (see Section 2.5.7 for details).

2 – 6 Installing The DSU II Digital Telephone System

DSU II Digital Telephone System IMI66–132

0.87"

16.50"

21.30"

3.78"

Back of

4-Line, 8-Station

Base Unit

20.50"

4-Line, 8-Station Base Unit

0.88"

16.50"

27.58"

8-Line, 16-Station Base Unit

16.50"

27.58"

3.78"

4.54"

Back of

8-Line, 16-Station

Base Unit

0.88"

Back of

16-Line, 32-Station

Base Unit

26.25"

26.65"

16-Line, 32-Station Base Unit

Detailing The DSU II Cabinet Dimensions

DSU250.CDR

Installing The DSU II Digital Telephone System 2 – 7

IMI66–132 DSU II Digital Telephone System

2.3 Making The AC Power Connection

You must employ a dedicated 117VAC 15 AMP circuit, with a third-wire ground, supplied to a standard electrical outlet (NEMA 5-15R) for the AC power connection.

For added equipment protection, connect a plug-in power line surge protector between the

•

power cord and the AC outlet. Thoroughly check out the installation before connecting the power cord to an electrical

•

outlet to apply AC power to the system.

2.3.1 Identifying The Fuses

The system is protected against short circuit damage by a fuse located on the right side of the common equipment cabinet. Always replace the fuse with one of the same value and type; otherwise, equipment damage could result.

Comparing Cabinets And Their Fuse Types

Cabinet Fuse Value

J0408 1A 250V slow-blow type J0816 3A 250V slow-blow type J1632 3A 250V slow-blow type

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DSU II Digital Telephone System IMI66–132

Dedicated 117VAC

15 AMP NEMA 5-15R

electrical outlet

with third-wire ground

Plug-in power

line surge

protector (typical)

DSU211

Typical

earth

ground

Fuse

(See text)

Grounding

terminal

Making The AC Power Connections

Installing The DSU II Digital Telephone System 2 – 9

IMI66–132 DSU II Digital Telephone System

2.3.2 Grounding The System

If spare conductors exist in the cables between the station and the 66M-xx connector blocks, it is good practice to connect them to an earth ground. Doing this may help prevent them from inducing radio frequency and/or AC interference into the system. It is also good practice to disconnect any unused station jacks from the connector block and ground that wiring to an earth ground as well.

Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable and into the common equipment. The telephone company offers basic protection against this condition but it is usually designed to protect the central office circuits. While it will also provide some protection to the common equipment, you should not rely upon it for total protection. To help ensure that external over-voltage surges do not damage the system, you should install and properly ground primary protection devices, such as gas discharge tubes or similar devices, on all lines. While the line boards have internal secondary surge protection on all line ports, in order for this protection to be effective, you MUST connect the common equipment cabinet to a reliable, effective earth ground.

Proper DSU grounding is necessary for trouble-free operation and personnel safety. The DSU has the following three types of grounds:

Service Ground—a neutral power line wire that is connected to the ground bus in the

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premises’ AC power panel, System Ground—a non-current carrying power line wire that is connected to the ground bus

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in the premises’ AC power panel, Frame Ground—a low impedance conductor that places the common equipment cabinet at

•

reference ground potential. The frame ground provides the greatest safety by limiting electrical potential between non-current carrying parts of the system. The common equipment cabinet provides a ground stud on its cabinet for access to its frame ground.

Effective grounding requires that you connect the frame ground to a good earth ground. A good earth ground is one such as the ground bus in the premises’ AC power panel or a public metallic cold water pipe at a point immediately at its entrance to the premises and ahead of any meters, pumps, or insulating sections that have been added for vibration reduction. Avoid using the premises’ structural steel frame as it may not be at earth ground potential. Make the ground connection with #10 or #12 insulated, solid copper grounding wire. Keep the ground wire

separate from the three-wire AC line cord ground, do not splice it, and keep it as short as possible.

The impedance of the wiring between the common equipment cabinet and the earth ground must not exceed 0.25 ohms and the impedance between the earth ground and the power company’s reference standard ground must not exceed 4 ohms. Use an acceptable low impedance measuring device to measure the impedance of these paths. The #10 or #12 wire size will minimize the wiring impedance; however, if the impedance between earth ground and the power company’s standard reference ground exceeds 5 ohms, contact the local power company. The ground path must always be of sufficient current-carrying capacity to prevent a build up of voltages that may result in circuit noise, hazard to personnel, or equipment damage.

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DSU II Digital Telephone System IMI66–132

Be sure that all of the ground connections are without splices and are visible for inspection and maintenance. Tag all of the ground connections with a sign that reads: Do Not Remove Or Disconnect.

If you install expansion modules on the base cabinet, attach at least a #10 or #12 insulated, solid copper wire between the frame ground stud on the expansion module(s) to the frame ground stud on the base cabinet.

Remember, if spare conductors exist in the cables that run between the stations and the 66M-xx connector blocks, it is good practice to connect them to earth ground. Doing this may help prevent them from introducing radio frequency and/or AC interference into the system. Also remember that it is good practice to disconnect any unused station jacks from the connector block and ground that wiring to earth ground as well.

DSU212

Frame Ground Stud

#10 or #12 Insulated, Solid Copper Grounding W ire

Typical Earth Ground (see text)

Grounding The System

Installing The DSU II Digital Telephone System 2 – 11

IMI66–132 DSU II Digital Telephone System

2.4 Connecting The Lines

The line terminations for the common equipment cabinet are standard modular plug/jack connections. Line configuration must be loop start only. Each modular jack provides termination for two lines. Modular line jacks 1 and 2 also provide termination for an auxiliary pair in addition to the two outside lines. The outside line termination can be a type 66M-xx connector block or individual 6-position modular jacks. The line cord that is routed between the outside line termination and the common equipment termination should be twisted-pair wiring. The J0408, J0816 and J1632 common equipment supports the installation of up to 4, 8, or 16 lines, respectively. Add-on expansion modules are available to expand the line capacity of the systems.

4-Line, 8-Station Base Unit

Lines 3 & 4, Aux. Line 4 Lines 1 & 2, Aux. Line 2

Grounding Terminal

Lines 1 & 2, Aux 1 (Line 2)

Lines 3 & 4, Aux 2 (Line 4)

Lines 5 & 6 Lines 7 & 8

Line 9 & 10

Line 11 & 12

Line 13 & 14 Line 15 & 16

8-Line, 16-Station Base Unit

Grounding Terminal

Line Jacks 1 & 2, Aux. Line 2 Line Jacks 3 & 4, Aux. Line 4 Line Jacks 5 & 6 Line Jacks 7 & 8

16-Line, 32-Station Base Unit

DSU219

Locating The Line Connections

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Grounding Terminal

DSU II Digital Telephone System IMI66–132

(Typical 8-Line, 16-Station Base Unit Shown)

6-Wire Twisted

Pair Cable

{ { {

RING 2 RING 1 TIP 1 TIP 2

RING 4 RING 3 TIP 3 TIP 4

RING 6 RING 5 TIP 5 TIP 6

CO/PBX LINES

Aux. Ring Ring 2 Ring 1 Tip 1 Tip 2 Aux. Tip

Pin designation for Line Jacks 1 and 2

RING 8 RING 7

{

Line Terminations Type 66M-XX Connector Block

or Individual 6-Position Modular jacks

No Conn.

6 5 4 3 2 1

Ring 2 Ring 1 Tip 1 Tip 2

6 5 4 3 2 1

TIP 7 TIP 8

CAJS083

No. Conn.

Pin designation for Line Jacks 5 and 6

Detailing The CO Interface

Installing The DSU II Digital Telephone System 2 – 13

IMI66–132 DSU II Digital Telephone System

2.4.1 Detailing The Line Connections

The table on the next page shows the line connection details for all three of the common equipment base units. Jacks one and two are the same for all three cabinets, jacks three and four are the same for both the J0816 and J1632 cabinets, and jacks five through eight are only available on the J1632 cabinet.

2.4.2 Reassigning The Line Ports

After you have initially connected a line to a particular line port and programmed its attributes (or left it with the system defaulted values), you can reassign the line and its attributes to a different port by programming action if you wish. Refer to Chapter 3 for the line to line port reassignment programming details.

While this feature allows you to make adds, moves, and changes without relocating the line wiring, it is not a substitute for correct wiring and should not be used as such. Be sure to record any reassignments that you make.

2.4.3 Protecting The Lines

Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable and into the common equipment. The telephone company offers basic protection against this condition but it is usually designed to protect the central office circuits. While it will also provide some protection to the common equipment, it should not be relied upon for total protection. To help ensure that external over-voltage surges do not damage the system, the manufacturer recommends that gas discharge tubes, or similar primary protection devices, be installed and properly grounded on all lines (a selection of solid-state protection devices that are useful for this purpose is available from ITW Linx, Elk Grove Village, Illinois 60007).

CAUTION

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DSU II Digital Telephone System IMI66–132

Understanding The Line Connection Details

Common Equipment Type Line Jack Pin No. Connection Telephone Number

1 Auxiliary 1 (Line 2) Tip 2 Line 2 Tip 3 Line 1 Tip 4 Line 1 Ring 5 Line 2 Ring 6 Auxiliary 1 (Line 2) Ring 1 Auxiliary 2 (Line 4) Tip 2 Line 4 Tip 3 Line 3 Tip 4 Line 3 Ring 5 Line 4 Ring 6 Auxiliary 2 (Line 4) Ring 1 No Connection 2 Line 6 Tip 3 Line 5 Tip 4 Line 5 Ring 5 Line 6 Ring 6 No Connection 1 No Connection 2 Line 8 Tip 3 Line 7 Tip 4 Line 7 Ring 5 Line 8 Ring 6 No Connection 1 No Connection 2 Line 10 Tip 3 Line 9 Tip 4 Line 9 Ring 5 Line 10 Ring 6 No Connection 1 No Connection 2 Line 12 Tip 3 Line 11 Tip 4 Line 11 Ring 5 Line 12 Ring 6 No Connection 1 No Connection 2 Line 14 Tip 3 Line 13 Tip 4 Line 13 Ring 5 Line 14 Ring 6 No Connection 1 No Connection 2 Line 16 Tip 3 Line 15 Tip 4 Line 15 Ring 5 Line 16 Ring 6 No Connection

J0408, J0816,

and

J1632

J0816

and

J1632

Installing The DSU II Digital Telephone System 2 – 15

IMI66–132 DSU II Digital Telephone System

2.5 Connecting The Stations

The DSU II digital telephone system supports the operation of proprietary Comdial telephones.

The J0408, J0816 and J1632 common equipment supports the installation of up to eight, 16, or 32 telephones, respectively. Add-on expansion modules are available to expand the station capacity of the systems. You can add one expansion module to the J0408, and two expansion modules to the J0816 and J1632. The JM408 expansion module provides interface for eight proprietary stations (plus interface for four lines) while the JM008 expansion module provides interface for eight industry-standard devices.

Connections between the common equipment and the stations are typically via type 66M-xx connector blocks which are cable connected to the common equipment’s 50–pin male connector. The connector block is, in turn, wired to modular jacks that accept the modular line cord connected between it and the telephones.

The maximum distance allowed from the common equipment to the stations is per the following list:

Multiline Telephones—1000 feet using #24 gauge, twisted-pair cable or 2000 feet using

•

#22 gauge cable

When installing the system telephones keep in mind that each station port supports only one proprietary telephone and the system does not allow you to bridge two stations to a single modular jack.

Always route station wiring a minimum of 12 inches from any other parallel wires or electrical devices. If electrical noise or RF energy is at a high level, you may need to use shielded cable with the shield connected to the cabinet ground lug.

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DSU II Digital Telephone System IMI66–132

2.5.1 Grounding The Unused Station Cables

Remove insulation and twist together all spare wires at the wall outlet. Ground the wires at the 66M-xx to the common equipment cabinet ground lug.

2.5.2 Relocating The Stations

The Comdial proprietary telephones identify themselves to the system when you install them. The system assigns an extension number and all other programmable attributes to station ports as a default that you can reprogram as needed. Plus, you can use programming action to reassign attributes of one station port to a different station port if you wish. Refer to the automatic station relocation programming procedure and the station-to-station programming procedure found in Chapter 3.

NOTE: The system will not allow you to relocate the station 10 to station port 10 assignment.

CAUTION

While this feature allows you to make adds, moves, and changes without relocating the station wiring, it is not a substitute for correct wiring and should not be used as such. Be sure to record any reassignments that you make.

2.5.3 Installing The Cable Clips

Each cabinet-mounted 50-pin male connector is equipped with a retaining clip. This clip is designed to secure the mated connection once it is made. The clip does this by snapping into a slot on the cable-mounted connector when it is pressed together with the cabinet-mounted connector. This retaining clip must be pulled back slightly to unsnap it before the connectors can be separated.

Installing The DSU II Digital Telephone System 2 – 17

IMI66–132 DSU II Digital Telephone System

4-Line, 8-Station Base Unit

Station 10-17, Power Fail Station

Grounding Terminal

Stations 10-25

Stations 26-41

8-Line, 16-Station Base Unit

Grounding Terminal

Station 10-25 Power Fail Station

16-Line, 32-Station Base Unit

Power Fail Station

(pins 3 & 4)

DSU220DSU220

Locating The Station Connections

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Grounding Terminal

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