Comdial Dxp Plus Instructions Manual
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1.2 Determining The Board Configuration That You Will Need Use the following specifications to determine the maximum number of station boards and DTMF receiver cards that you may need. ·Each eight-station board supports up to eight telephones. (It will actually support 16 telephones—two telephones at each port sharing a common intercom number.) ·Up to two industry-standard telephones can be bridged at one station port as long as you do not exceed a combined ringer equivalence number, or REN, of 2.0. (Remember, with two telephones at the same port, they share a common intercom number.) ·Each 16-station board supports up to 16 telephones. (It will actually support 32 telephones—two telephones at each port sharing a common intercom number) ·Up to two industry-standard telephones can be bridged at one station port as long as you do not exceed a combined ringer equivalence number, or REN, of 2.0. (Remember, with two telephones at the same port, they share a common intercom number.) ·Each receiver card allows four industry-standard telephones to dial simultaneously. (The number of cards that you need to install in the system will depend upon how active the industry-standard telephones will be at the site.) ·You can install one receiver card in the top position on the services board. The services board always provides on-board DTMF receiver circuitry capable of supporting simultaneous dialing of one industry-standard telephone. With the addition of a receiver card, the services board supports simultaneous dialing of five industry-standard telephones. You can add two additional receiver cards to the lower two positions on the services board; however, you must take specific programming action to enable their use (this program feature name is:Services DTMF Highway). With these additional two cards, the services board supports simultaneous dialing of 13 industry-standard telephones. ·You can install three receiver cards on the upper and lower expansion cabinet interface boards. With three receiver cards installed, each interface board supports simultaneous dialing of 12 industry-standard telephones. CAUTION If you add two additional receiver cards to the lower two positions on the services board, you can add only one receiver card to the lower expansion cabinet’s interface board.. ·You can install four receiver cards on an auxiliary board. With four receiver cards installed, an auxiliary board supports simultaneous dialing of 16 industry-standard telephones (Remember, while you can install up to five auxiliary boards in the system, each auxiliary board that you use occupies a slot where you could install a station or line board.) Based upon the above specifications, a fully-equipped DXPPlussystem with a minimum ofone line boardand no auxiliary boardswill provide the following industry-standard telephone support: ·main cabinet (reserving one slot for a line board) supports128 telephones(eight 16-station boards times 16 station ports per board—256 telephones with two telephones per station port sharing the same extension number), ·upper expansion cabinet supports176 telephones(eleven 16-station boards times 16 station ports per board—352 telephones with two telephones per station port sharing the same extension number), ·lower expansion cabinet supports160 telephones(ten 16-station boards times 16 station ports per board—320 telephones with two telephones per station port sharing the same extension number). These individual totals add together to provide a system support total of464 telephones(The total is 928 telephones with two telephones per station port sharing the same intercom number.) IMI89–186 Installing The DTMF Receiver Card 2 – Installing The DTMF Receiver Card
You can configure the system so that amaximum of 29 of these telephones can dial simultaneously. ·services board circuitry that supports one telephone plus one receiver card that supports four telephones provides support for six simultaneously dialing telephones ·upper expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones ·lower expansion cabinet interface board with three receiver cards supports 12 simultaneously dialing telephones If you add the maximum of five auxiliary boards and install four receiver cards on each board, you canincrease the simultaneous dialing capacity to 109 telephonesbut youreduce the maximum telephone capacity to 384. (The total is 788 telephones with two telephones per station port sharing the same extension number.) 1.2.1 Calculating Your Receiver Card Needs You can use the following formula to determine how many receiver cards that you must install in your system. (Simultaneous Dialing Telephones) - (1 Telephone Supported By Services Board) ( 4 Telephones Per Card)= Receiver Cards As an example, the system maximum is as follows: (110 - 1)¸4 = 27 cards If you are not sure how many telephones will dial at the same time in your system, you can use the following typical system averages and formula to arrive at a usable estimate. A typical telephone system, experiences the following call traffic percentages. Your system may be similar. ·Light Call Traffic = up to 15 percent of the telephones dial simultaneously ·Moderate Call Traffic = up to 20 percent of the telephones dial simultaneously ·Heavy Call Traffic = up to 30 percent of the telephones dial simultaneously (Percent Of Simultaneous Dialing) x (Installed Telephones) = (Simultaneous Dialing Telephones) For example, the formula for the system’s maximum values is as follows: .286 x 384 = 110 telephones 1.3 Complying With Underwriters Laboratories Regulations Per The Underwriters Laboratories regulation 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. ·Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. ·Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. ·Use caution when installing or modifying telephone lines. Installing The DTMF Receiver Card IMI89–186 Installing The DTMF Receiver Card – 3
2.0 Installing Circuit Boards CAUTION Circuit boards are susceptible to damage caused by electrostatic discharge, and you must keep this fact in mind as you handle the circuit boards. Refer to the Comdial publication IMI01-005,Handling Of Electrostatically Sensitive Components,for general information. Specific handling precautions are also included in this installation instruction. 2.1 Creating A Static Safe Work Area When servicing the common equipment cabinet at the installation location, it is a good practice to place a conductive mat in front of the cabinet area and ground the mat to a good earth ground. (The third wire ground of the AC power line is also an acceptable grounding point.) The grounded conductive mat provides a safe static electric discharge path. When removing the common equipment cabinet from the installation location for servicing, it is a good practice to prepare a static-safe work area on which to place the cabinet. You should supply yourself with a static discharge wrist strap, and wear it every time you handle electronic circuit boards either at the cabinet mounting location or at your work area. IMI89–186 Installing The DTMF Receiver Card 4 – Installing The DTMF Receiver Card
Typical Earth Ground Static Wrist Strap ESD Protective Mat ESD Protective Mat ESD Protective Worksurface Static 2 Common Point Ground Creating A Static Safe Work Area Expansion Cabinet Expansion Cabinet Earth Ground 1 Meg Ohm Resister Conductive MatStatic Discharge Wrist Stap Common Equipment Cabinet PLUS035 Providing Static Protection At The Cabinet Mounting Location Installing The DTMF Receiver Card IMI89–186 Installing The DTMF Receiver Card – 5
3.0 Installing The Receiver Card You can install one receiver card in the top position on the services board. You can add two additional receiver cards to the lower two positions on the services board; however, you must take specific programming action to enable their use (this program feature name is: Services DTMF Highway). You can install three receiver cards on the upper and lower expansion cabinet interface boards. CAUTION If you add two additional receiver cards to the lower two positions on the services board, you can add only one receiver cards to the lower expansion cabinet interface board. 1. Be sure you are standing on the conductive mat that you have placed in front of the cabinet area and grounded to a good earth ground. (The third wire ground of the AC power line is an acceptable grounding point if the AC wall jack is properly grounded.) The grounded conductive mat provides a safe static electric discharge path. 2. Install your static discharge wrist strap on your bare wrist; adjust it for a snug fit. Be sure that the strap 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. Turn off the power to the system and disconnect the optional battery back up equipment. 4. Loosen the retaining hardware, and lift the front panel away from the common equipment cabinet. 5. Loosen the retaining hardware and remove the services board from the cabinet, place it in a static protection bag, and transport the board to the static-safe work area. Do the same for the interface board if you plan to add a receiver card to it. Further, if the common equipment cabinet contains an auxiliary board and you plan to add the receiver card to it, follow the same procedure. 6. At the static safe work area, with your wrist strap in place, remove the circuit boards and receiver cards from their static protection bags. 7. Referring to the illustrations on the next page, orient the host circuit board and the receiver card, and attach them with the supplied hardware. 8. Place the host circuit board and the newly installed receiver card into a static protection bag and transport them back to the common equipment cabinet. 9. With your static strap on your wrist, remove the board assembly from the static protection bag and install the board in its designated board slot. 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. 9. Make a final inspection to ensure that the board assembly is oriented correctly and mated properly. 10. Install and tighten the supplied screws to secure the circuit board assembly to the board cage. 10. Plug the AC line cord into the AC outlet, reconnect any battery back up equipment, and turn on the switch on the power supply. 11. Replace the front panel on the common equipment cabinet. IMI89–186 Installing The DTMF Receiver Card 6 – Installing The DTMF Receiver Card
Connecting The Receiver Card To Its Host Circuit Board Auxiliary Board Receiver Card (4 Places) PLUS060 Lower Expansion Cabinet Interface Board Receiver Card (1 Place) Receiver Card (2 Places - See Text Details) Services Board Receiver Card (1 Place) DXOPT-TON (2 Places If Programmed -See Text) Upper Expansion Cabinet Interface Board Receiver Card (3 Places) Installing The DTMF Receiver Card IMI89–186 Installing The DTMF Receiver Card – 7
Installing The Ring Generator Assembly In The DXP Plus Digital Communications System 1.0 Introducing The Ring Generator Assembly Installation The DXPPlusdigital communications system supports the use of on-premise industry-standard telephones. To do this, it requires a ring generator assembly to supply ringing voltage to the industry-standard telephones to signal incoming calls. Regardless of the number of installed industry-standard telephones, you will need to install one ring generator for the main cabinet and one ring generator for each expansion cabinet if the site includes expansion cabinets. 1.1 Complying With Underwriters Laboratories Regulations Per The Underwriters Laboratories regulation 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. ·Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations. ·Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface. ·Use caution when installing or modifying telephone lines. R This manual has been developed by Comdial Corporation (the “Company”) and is intended for the use of its customers and service personnel. The information in this manual is subject to change without notice. While every effort has been made to eliminate errors, the Company disclaims liability for any difficulties arising from the interpretation of the information contained herein. The information contained herein does not purport to cover all details or variations in equipment or to provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired, or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, contact Comdial, Inside Sales Department, Charlottesville, Virginia 22906. Printed in U.S.A.IMI89-187.01 7/95
2.0 Creating A Static Safe Work Area When servicing the common equipment cabinet at the installation location, it is a good practice to place a conductive mat in front of the cabinet area and ground the mat to a good earth ground. (The third wire ground of the AC power line is also an acceptable grounding point.) The grounded conductive mat provides a safe static electric discharge path. When removing the common equipment cabinet from the installation location for servicing, it is a good practice to prepare a static-safe work area on which to place the cabinet. You should supply yourself with a static discharge wrist strap, and wear it every time you handle electronic circuit boards either at the cabinet mounting location or at your work area. IMI89–187 Installing The Ring Generator Assembly 2 – Installing The Ring Generator Assembly
Typical Earth Ground Static Wrist Strap ESD Protective Mat ESD Protective Mat ESD Protective Worksurface Static 2 Common Point Ground Creating A Static Safe Work Area Expansion Cabinet Expansion Cabinet Earth Ground 1 Meg Ohm Resister Conductive MatStatic Discharge Wrist Stap Common Equipment Cabinet PLUS035 Providing Static Protection At The Cabinet Mounting Location Installing The Ring Generator Assembly IMI89–187 Installing The Ring Generator Assembly – 3
3.0 Installing The Ring Generator Assembly You can install the ring generator assembly in the main and expansion cabinets per the following steps. 1. Turn off the power to the system, unplug the AC line cord from the AC outlet, and disconnect the optional battery back up equipment. 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 Loosen the retaining hardware and lift the front panel away from the common equipment cabinet. 4. Loosen the retaining screws and remove the power supply assembly from the common equipment cabinet. 5. Connect the ring generator assembly to the side panel of the power supply chassis, and secure it with the supplied hardware. 6. Slide the attached assemblies into the opening at the top right side of the common equipment main cabinet until the assembly’s front panel contacts the side of the cabinet. 7. Locate the power cable routed from the backplane, and connect it to the power supply. 8. Locate the ring generator cable routed from the backplane, and connect it to the ring generator. 9. Fasten the assembly to the common equipment cabinet with the hardware you removed in step 2. 10. Plug the AC line cord into the AC outlet, reconnect any battery back up equipment and turn on the switch on the power supply. 11. Replace the front panel on the common equipment cabinet. IMI89–187 Installing The Ring Generator Assembly 4 – Installing The Ring Generator Assembly