DSU II Digital Telephone System 2 Section 2.1 IMI66–132 Installing The DSU II Digital Telephone System Title ........................................................................................................... Page Considering the Mounting Requirements................................................2–4 2.1.1 2.1.2 2.1.3 Tools And Hardware ..............................................................................2–5 Underwriters Laboratories Installation Notice .............................
IMI66–132 Section DSU II Digital Telephone System 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.
DSU II Digital Telephone System Section IMI66–132 Title ........................................................................................................... Page 2.16 Isolating Failures......................................................................................2–51 2.16.1 2.16.2 Checking The System Status Indicator.................................................2–51 Testing The Stations .............................................................................2–51 2.
IMI66–132 2.1 DSU II Digital Telephone System 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 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.
DSU II Digital Telephone System 2.1.1 IMI66–132 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, • Screwdriver—to match fasteners, • Electric drill—if prepared holes are required, • Connecting tool—for fastening wires to a type-66 connector block, • Crimping tool—for 623-type modular plugs, • Volt/Ohm Meter. 2.1.
IMI66–132 2.2 DSU II Digital Telephone System 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.
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" 3.78" Back of 8-Line, 16-Station Base Unit 26.25" 8-Line, 16-Station Base Unit 0.88" 16.50" 27.58" 4.54" Back of 16-Line, 32-Station Base Unit 26.65" 16-Line, 32-Station Base Unit DSU250.
IMI66–132 2.3 DSU II Digital Telephone System 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.
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 Fuse (See text) Grounding terminal Typical earth ground Making The AC Power Connections Installing The DSU II Digital Telephone System 2 – 9
IMI66–132 2.3.2 DSU II Digital Telephone System 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.
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.
IMI66–132 2.4 DSU II Digital Telephone System 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.
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 CO/PBX LINES RING 6 RING 5 TIP 5 TIP 6 RING 8 RING 7 TIP 7 TIP 8 Line Terminations Type 66M-XX Connector Block or Individual 6-Position Modular jacks Aux. Ring 6 Ring 2 5 Ring 1 4 3 Tip 1 2 Tip 2 1 Aux. Tip Pin designation for Line Jacks 1 and 2 No Conn. Ring 2 6 5 Ring 1 4 3 Tip 1 2 Tip 2 1 No. Conn.
IMI66–132 2.4.1 DSU II Digital Telephone System 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.
DSU II Digital Telephone System IMI66–132 Understanding The Line Connection Details Common Equipment Type J0408, J0816, and J1632 Line Jack 1 2 3 J0816 and J1632 4 5 6 J1632 7 8 Pin No.
IMI66–132 2.5 DSU II Digital Telephone System 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.
DSU II Digital Telephone System 2.5.1 IMI66–132 Grounding The Unused Station Cables 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.
IMI66–132 DSU II Digital Telephone System 8-Line, 16-Station Base Unit 4-Line, 8-Station Base Unit Station 10-17, Power Fail Station Grounding Terminal Grounding Terminal Station 10-25 Power Fail Station 16-Line, 32-Station Base Unit Stations 10-25 Power Fail Station (pins 3 & 4) Stations 26-41 DSU220 Grounding Terminal Locating The Station Connections 2 – 18 Installing The DSU II Digital Telephone System
DSU II Digital Telephone System 2.5.4 IMI66–132 Connecting Stations To The J0408 This table shows the color-coded connections for a J0408 common equipment cabinet.
IMI66–132 2.5.5 DSU II Digital Telephone System Connecting Stations To The J0816 This table shows the color-coded connections for a J0816 common equipment cabinet.
DSU II Digital Telephone System 2.5.6 IMI66–132 Connecting Stations To The J1632 The following two tables show the color-coded connections for a J1632 common equipment cabinet.
IMI66–132 DSU II Digital Telephone System Connecting Stations To J2 On The J1632 Common Equipment Cabinet 25-Pair Connections Wire Color White-Blue Blue-White White-Orange Orange-White White-Green Green-White White-Brown Brown-White White-Slate Slate-White Red-Blue Blue-Red Red-Orange Orange-Red Red-Green Green-Red Red-Brown Brown-Red Red-Slate Slate-Red Black-Blue Blue-Black Black-Orange Orange-Black Black-Green Green-Black Black-Brown Brown-Black Black-Slate Slate-Black Yellow-Blue Blue-Yellow Yellow-Or
DSU II Digital Telephone System 2.5.7 IMI66–132 Wall Mounting The Telephone Stations The DigiTech (product code 77nnn), Impact (product code 8nnnn), and Impression (product code 2nnnn) telephones are shipped from the factory configured for desk use. To convert them for wall-mounting, follow the procedures outlined below. To convert the DigiTech model 77nnn telephones for wall-mounting, 1. Disconnect line cord and handset cord from telephone. 2. Turn telephone over to expose lower housing.
IMI66–132 DSU II Digital Telephone System To convert the Impact (models 80nnn and 81nnn) and Impression (models 20nn and 21nnn) telephones for wall-mounting, 1. Turn telephone over and disconnect line cord and handset cord from telephone. Do not damage line cord on plastic dressing tabs. 2. Remove screws from pedestal and unlatch it from telephone housing, rotate it 180 degrees, re-latch its tabs in the slots in the lower housing of the telephone, and replace screws. 3.
DSU II Digital Telephone System IMI66–132 To wall-mount the telephones, After configuring a telephone for wall mounting, either mount it directly on the wall using two #10 pan-head screws (obtained locally), or mount it on a wall jack cover plate. If using a wall jack cover plate, use an AT&T type 630B wall plate for best results. 1. If #10 screws are used, thread them into the wall within 1/8-inch of the surface. Refer to the illustration for the spacing dimensions. 2.
IMI66–132 2.6 DSU II Digital Telephone System Installing DSS/BLF Consoles The digital telephone system supports the installation and use of DigiTech DD32X, Impact IB64X, and Impression DU32X consoles at any available station port. The number of installed consoles is limited only by port availability; however, since a console complements a companion telephone located in an adjacent station port, you can use up to one-half of the available station ports for consoles.
DSU II Digital Telephone System IMI66–132 While the first console (the one installed at the logic-paired port) extends the autodial buttons of the paired telephone by 48 and provides DSS/BLF coverage for station ports 10 through 57, the second console (the one installed at the programmed station port) provides DSS/BLF coverage as follows: • On a 32-station system with two 8-station expansion modules, the first 16 buttons are automatically assigned (defaulted) to station ports 42 through 57 for DSS purpose
IMI66–132 2.7 DSU II Digital Telephone System Connecting A Power Failure Station The system provides a tip and ring pair connected to line 1 as an emergency power failure circuit. This circuit is active during a commercial AC power failure if an external battery assembly is not installed to provide battery back-up power to the system.
DSU II Digital Telephone System 2.8 IMI66–132 Using The Auxiliary Equipment Interface You can connect an industry-standard telephone or a data device such as a modem or a FAX machine on a line ahead of the common equipment if you wish. If you do so, the system can detect an off-hook condition in the connected device and turn on the line status light at the system telephones to indicate that the line is busy. Connection is across tip and ring of lines 2 and 4.
IMI66–132 2.9 DSU II Digital Telephone System Connecting The Common Audible And Auxiliary Ringing Interface You can use the relay closure dry-contact points for controlling external audible equipment. These contact closures track the pattern of the ringing for incoming calls. The contacts are closed during the ringing period and are open during the silent period. CAUTION Do not exceed a 1 amp at 24 volts (0.5 amp at 48 volts) load on these control terminals.
DSU II Digital Telephone System IMI66–132 (Wiring shown for low current application - see caution text) Signalling Device Wire to Common Audible Interface Relay Power Source for Signalling Device 24V @ 1A Max. 48V @ .5A Max. AC or DC Input as Required (Wiring shown with slave relay connection for high current application - see caution text) Wire to Common Audible Interface Relay 24V @ 1A Max. 48V @ .5A Max.
IMI66–132 DSU II Digital Telephone System 2.10 Using The External Paging Interface The system provides a special transformer-isolated paging port that you can use to couple the system to a customer-supplied external paging amplifier. This external paging port does not provide a talk-back path nor will it recognize DTMF dial tones.
DSU II Digital Telephone System IMI66–132 2.11 Using A Line Port As An External Paging Interface You can use class of service programming to program a line port to be an AUXILIARY port. As an AUXILIARY port, a user can use it to couple a telephone to an external paging device that you have wired to the line port. He or she does this from any station with that line presence by pressing the proper line button to select the AUXILIARY port.
IMI66–132 DSU II Digital Telephone System 2.12 Connecting Data Devices To The System The DSU II includes serial data ports for use. The common equipment cabinet provides these ports as standard modular jacks labeled COM 1 and COM 2 This section contains information on two stages of wiring these connections for data devices. Section 2.12.1 explains connections from stations to modular jacks. Section 2.12.2 details wiring from the modular jack to the DSU. 2.12.
DSU II Digital Telephone System From COM 1 Serial Data Port IMI66–132 TD RD SG } Typical modular to EIA adapter wiring shown for reference only.
IMI66–132 2.12.2 DSU II Digital Telephone System Making The Common Equipment Data Connections You must make wiring connections from the modular jack (wall jack) to the common equipment cabinet modular jack for the data connection. The default data communications format is as follows: • 8-bit data with 1 stop bit and no parity • Baud rate of 9600 baud. Configure a data device to match this format for initial operation or reprogram the system’s data format to match those of a data device.
DSU II Digital Telephone System IMI66–132 Com 2 Com 1 J0408 Base Unit Com 2 Com 3 Com 4 Com 1 J0816 Base Unit Com 2 Com 3 Com 4 Com 1 DSU225 J1632 Base Unit 1.= Request to Send (RTS) 2.= Clear to Send (CTS) 3. = Receive Data (RD) 4. = Transmit Data (TD) 5. = Signal Ground (SG) 6.
IMI66–132 2.12.3 DSU II Digital Telephone System Connecting A Personal Computer For Remote Programming You can connect a personal computer (PC) to the DSU II digital telephone system remotely through modems as described below. (For information on direct connection, refer to Section 2.12.1. ) You will need the following customer-supplied equipment: • PC and appropriate software program, • Pair of data modems.
DSU II Digital Telephone System IMI66–132 If you experience difficulty in establishing a communications path between your PC, modems, and the digital telephone system, note the suggestions that are listed below. • Confirm that the modems are wired correctly. Be sure RD, TD, and SG are connected to the system’s serial data connection. Reverse connections at pins 2 and 3 if necessary. Sometimes you must strap pin 4 to 5, or pin 6 to 7, or pin 6 to 8 to 20 in the modem wiring.
IMI66–132 DSU II Digital Telephone System 2.13 Using The Music Interface If music is to be part of the system, connect a customer-provided music source to the common equipment music interface jack (phono jack) provided for this purpose. The impedance of this input is approximately 500Ω. Use the volume control on the music source to adjust the audio level of the music as required.
DSU II Digital Telephone System IMI66–132 2.14 Using The Add-On Expansion Modules You can install optional add-on expansion modules to the DSU II common equipment base unit to increase the line and station capacity of an installed system. • The JM408 expansion module provides an additional four lines and eight digital proprietary stations. • The JM008 expansion module provides interface and ring generation for eight industry-standard telephone devices.
IMI66–132 DSU II Digital Telephone System Connecting Lines To The JM408 Expansion Module The expansion module’s line connections are available at two modular jacks. When facing the jack openings, lines 1 and 2 are provided by the jack on the right and lines 3 and 4 are provided by the jack on the left.
DSU II Digital Telephone System IMI66–132 Connecting Stations To The JM408 Expansion Module The station connections are available at a 50-pin connector.
IMI66–132 2.14.2 DSU II Digital Telephone System Using The JM008 Module The JM008 expansion module provides an interface for a wide variety of industry-standard telephone (IST) equipment such as 500 and 2500-type telephones, cordless telephones, voice mail systems, answering machines, FAX machines, and data modems. Each IST port drives a load with a maximum ringer equivalence number (REN) of 2.0. Check the REN number of the connected IST equipment so you do not exceed the capacity of the IST port.
DSU II Digital Telephone System IMI66–132 Connecting Stations To The JM008 Module The station connections are available at a 50-pin connector.
IMI66–132 DSU II Digital Telephone System Checking Industry-Standard Telephone Connections To The JM008 Module When you connect industry-standard telephones to the JM008 expansion module, the maximum distance allowed from the common equipment to the telephone is 1500 feet if you use #24 gauge or larger, twisted pair cable.
DSU II Digital Telephone System IMI66–132 Installing An OPX Long Loop Adapter With The JM008 You must use an OPX long loop adapter if you wish to adapt the JM008’s IST station port to support an off-premise IST application. An OPX long loop adapter connects to a single telephone line and can greatly extend the line’s loop length (the Proctor Model 46222 adapter*, for example, can extend line length to 30,000 feet).
IMI66–132 2.14.3 DSU II Digital Telephone System Installing An Add-On Expansion Module Each JM408 or JM008 add-on expansion module measures 15.5" wide x 9.4" high x 1.6" wide and weighs approximately 4 pounds. The modules are designed so that you can attach them to the base unit and connect them to it via cabling. NOTE: If you plan to upgrade the system software at the same time that you add expansion modules, add the expansion modules first by following steps 1 through 11.
DSU II Digital Telephone System IMI66–132 Typical Base Unit (8-Line, 16-Station Base Unit) Nameplate (Remove to expose base unit connectors) Top Location Upper Mounting Holes (2 Places) Lower Mounting Holes (2 Places) Bottom Location cajs111.cdr Connecting Cable and Plug Securing Screw Ground Modules to Base Unit Snap Slots for Nameplate Ground Base Cabinet To Earth Ground.
IMI66–132 DSU II Digital Telephone System 2.15 Checking The System Installation The system operating features are set to default conditions at initial power-up. These conditions provide a basic operating system with a known set of parameters, and you should check out the system with the default conditions in place. At any time while the system is operating, you can reset default conditions from station port 10 or 12 following the instructions provided in chapter 3, Programming. 2.15.
DSU II Digital Telephone System 2.15.3 IMI66–132 Checking The General Operating Conditions 1. Check the green light emitting diode (LED) system status indicator. Be sure that it is on steady. If it is off or flashing, refer to the paragraph titled Checking the System Status Indicator. 2. Refer to the user’s guide for operating information and perform a general operational test of the system by exercising the features from station port 10 or 11.
IMI66–132 DSU II Digital Telephone System 2.17 Loading And Up-Grading The System Software The DSU II contains flash memory that you load with operating software when you install the system and later re-load with software up-grades as they become available. The operating software package consists of three parts: The boot-loader EPROMs that is factory-installed as part of the system, and the software key and software disks that you order separately.
DSU II Digital Telephone System IMI66–132 Serial Ports 9-Pin D Connector 25-Pin D Connector Modular To EIA Adapter Connect To Serial Port (Both 9-Pin and 25-Pin adapters are available.) 4-Conductor Line Cord Connect To COM 1 Port On DSU II Parallel Port 25-Pin D Connector Rear View of Typical Personal Computer (PC) Security Key Connect To Computer's Parallel Port CAJS031j.cdr Connecting The Security Key 2.17.2 Introducing The Software Disks There are several standard 3.
IMI66–132 2.17.3 DSU II Digital Telephone System Loading The Software Installing The Bootloader Interface You must install the boot loader interface on your PC before you can install the system operating software. Installing The Bootloader Interface Software With Windows 95* 1. Insert the bootloader interface disk (labeled disk1) in your PC’s disk drive. 2. From the Start menu, select Run. 3. At the prompt line, type: :\disk1\setup where is the letter of your source disk drive. 4.
DSU II Digital Telephone System IMI66–132 Installing The Bootloader Interface Software With Windows 3.1* Or Windows For Workgroups 3.11* 1. Insert the bootloader interface disk (labeled disk1) in your PC’s disk drive. 2. From the File Manager menu, select Run. 3. At the prompt line, type: :\disk1\setup where is the letter of your source disk drive. 4. Click Yes. The Bootloader Interface installation window appears.
IMI66–132 DSU II Digital Telephone System Un-installing The Bootloader Interface The software provides a means by which you can un-install it if you wish. For Windows 95 operating systems, 1. From the Start menu, select Programs, and navigate to the DSU II BTLDR I/F folder. 2 Double click on the Unstall icon. 3. In the event that you were accessing the DSU II BTLDR I/F folder and its contents, you may need to manually delete the folder and its contents.
DSU II Digital Telephone System IMI66–132 4. From the system menu, press 4 and RETURN (This causes load/save menu to be displayed.) From load/save menu, you can down-load the COS data base to your PC (usually to some temporary location on your hard drive). To down-load the data base, (a) press 1 and RETURN, (b) press PAGE DOWN, (c) press 1 to choose XMODEM protocol, (d) type destination file name for the down-loaded data base—include destination drive (for example, C:\ cust.001) (e) press RETURN.
IMI66–132 DSU II Digital Telephone System Loading The System Operating Software (Using The DSU II Bootloader Interface) 1. Connect the security key to the parallel port on the PC. NOTE: If you wish to view the available up-grade count and the system type supported by the security key, select Key from the main menu and then select View. 2. Install the system operating software disk (labeled disk2) in your PC’s disk drive.
DSU II Digital Telephone System IMI66–132 Master Clearing The System After you load the system operating software, master clear the system. Master clearing returns the entire system configuration to factory settings and clears all stored auto and speed dial numbers. NOTE: Do not do this unless you want to clear all of the programmed data base. 1. Type the password I✳746✳ (this will get you into the main menu) and RETURN. 2. Press 1 for System C.O.S. and RETURN. 3. Press 1 for System Defaults and RETURN.