Comdial Impact Dsu Instructions Manual
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2.14 Using The Add-On Expansion Module You can install one or two optional add-on expansion modules on the common equipment base unit to increase the line and station capacity of an installed system. The default numbering of the expanded lines and stations begin with the next higher line or station port number from that provided by the host base unit. The numbering continues sequentially from top module to bottom module if two modules are installed. For example: The defaulted 8-line, 16-station base unit provides station ports 10 through 25 and lines 1 through 8. When installed, a 408 Expansion module will provide station ports 26 through 33 and lines 9 through 12 thus creating a 12 line by 24 station system. Each expansion module provides a tip and ring pair as an emergency power failure circuit. This circuit is connected to the first module-provided line. The line connections of the expansion module 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. Table 2–9: Connecting Lines To The G0408 Expansion Module Line JackPin Number ConnectionTelephone Number 11 No Connection 2 Line 2M Tip 3 Line 1M Tip 4 Line 1MRing 5 Line 2M Ring 6 No Connection 21 No Connection 2 Line 4M Tip 3 Line 3M Tip 4 Line 3M Ring 5 Line 4M Ring 6 No Connection IMI66–107Digital Telephone System Installing The DSU 2 – 41

2.14.1 Expansion Capabilities The 4-line 8-station expansion module adds station and line capability in several different combinations. Figure 2–20: Add-On Expansion Module Capabilities 16-Line, 32-Station Base Unit 4-Line, 8-Station Base Unit 8-Line, 16-Station Base Unit CAJS089 24-Port System 8-LINES AND 16-STATIONS (BASE UNIT PLUS ONE EXPANSION MODULE) 36-Port System 12-LINES AND 24-STATIONS (BASE UNIT PLUS ONE EXPANSION MODULE) 48-Port System 60-Port System 72-Port System 16-LINES AND 32-STATIONS (BASE UNIT PLUS TWO EXPANSION MODULES) 20-LINES AND 40-STATIONS (BASE UNIT PLUS ONE EXPANSION MODULE) 24-LINES AND 48-STATIONS (BASE UNIT PLUS TWO EXPANSION MODULES) Digital Telephone SystemIMI66–107 2 – 42 Installing The DSU

2.14.2 Connecting Stations To The Expansion Module The station connections are available at a 50-pin connector. Table 2–10: Connecting Stations To The G0408 Expansion Module 25-Pair Connections Two-Wire Connections Station Connections Wire Color Pair Pin No.Clip Term.Pair Wire Color Station Location White-Blue 126 1 Signal PathGreen 1M Blue-White 1 2 Red White-Orange 227 3 Signal PathGreen 2M Orange-White 2 4 Red White-Green 328 5 Signal PathGreen 3M Green-White 3 6 Red White-Brown 429 7 Signal PathGreen 4M Brown-White 4 8 Red White-Slate 530 9 Signal PathGreen 5M Slate-White 5 10 Red Red-Blue 631 11 Signal PathGreen 6M Blue-Red 6 12 Red Red-Orange 732 13 Signal PathGreen 7M Orange-Red 7 14 Red Red-Green 833 15 Signal PathGreen 8M Green-Red 8 16 Red Red-Brown 934 17 Spare Pair Brown-Red 9 18 Red-Slate 1035 19 Slate-Red 10 20 Black-Blue 1136 21 Blue-Black 11 22 Black-Orange 1237 23 Orange-Black 12 24 Black-Green 1338 25 Green-Black 13 26 Black-Brown 1439 27 Brown-Black 14 28 Black-Slate 1540 29 Slate-Black 15 30 Yellow-Blue 1641 31 Blue-Yellow 16 32 Yellow-Orange 1742 33 Orange-Yellow 17 34 Yellow-Green 1843 35 Green-Yellow 18 36 Yellow-Brown 1944 37 Brown-Yellow 19 38 Yellow-Slate 2045 39 Slate-Yellow 20 40 Violet-Blue 2146 41 Blue-Violet 21 42 Violet-Orange 2247 43 Orange-Violet 22 44 Violet-Green 2348 45 Green-Violet 23 46 Violet-Brown 2449 47 Brown-Violet 24 48 Violet-Slate 2550 49 Signal PathTip Power Fail Station Slate-Violet 25 50 Ring IMI66–107Digital Telephone System Installing The DSU 2 – 43

2.14.3 Installing The Add-On Expansion Module Each 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, be sure to add the expansion modules first by following steps 1 through 11. After you have installed the expansion modules and programmed for the new stations and line ports, you can then upgrade the software as described in the discussion titled,Upgrading The System Software. To install an expansion module to a base unit, follow the procedure detailed in steps 1–11. CAUTION You must always connect the first module to the top location on the base unit. 1. Disconnect both AC power and external battery back-up power from the system. 2. Remove and set aside nameplate from base unit. This action exposes internal cable connector on base unit circuit board. 3. Reach through opening in base unit and mate module cable plug with base unit circuit board connectors. 4. Push excess cable inside base unit housing through connector opening. 5. Install expansion module in place on all four mounting holes. Be sure excess cable is not pinched between add-on module and base unit. 6. Pull module down to latch in place. 7. Use flat-blade screw driver to tighten module securing screw into base unit threaded fastener. 8. Snap nameplate into slots on top of module housing. 9. Attach #10 or #12 insulated, solid copper wire between the frame ground stud on the expansion module and the frame ground stud on the common equipment cabinet. 10. Reconnect the power to the system. 11. Refer to Chapter 3, and perform configuration programming for new station and line ports. Digital Telephone SystemIMI66–107 2 – 44 Installing The DSU

Figure 2–21: Installing The Add-On Expansion Module Typical Base Unit Typical Add-On Module (8-Line, 16-Station Base Unit) Nameplate (Remove to expose base unit connectors) To p Location Bottom LocationUpper Mounting Holes (2 Places) Lower Mounting Holes (2 Places) Connecting Cable and Plug Snap Slots for Nameplate Securing ScrewGround Modules to Base Unit AM012 IMI66–107Digital Telephone System Installing The DSU 2 – 45

2.15 Upgrading The System Software The following sections contain information on safety precautions you should take before working on the common equipment, procedures for making a copy of the call cost records before upgrading software, instructions for replacing the software cartridge, and instructions for master clearing the system to load the new software. 2.15.1 Creating A Static Safe Work Area CAUTION Circuit boards are susceptible to damage caused by electrostatic discharge, and you must keep this fact in mind as you handle them. When servicing the common equipment cabinet, it is a good practice to prepare a static-safe work area on which to service the cabinet. 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. Figure 2–22: Creating A Static Safe Work Area Digital Telephone SystemIMI66–107 2 – 46 Installing The DSU

2.15.2 Saving The Call Cost Records To save the call cost records, 1. Make a copy of the call cost records and then delete them from the system memory per the following procedure: To print records: pressINTERCOM, dialS# 076#, and pressSPEAKER. To delete records: pressINTERCOM, dialS# 077#, and pressSPEAKER. 2. Use the VDT programming procedure to save the current system data base on a PC. IMI66–107Digital Telephone System Installing The DSU 2 – 47

2.15.3 Replacing The Software Cartridge Upgrading software in the digital telephone system consists of removing the current software cartridge and exchanging it with a board containing updated software. CAUTION To avoid any chance of electrostatic discharge damage to the softtware cartridge, avoid touching the connector with your fingers while handling it. Be sure to disconnect the AC power and battery back up to the base unit before installing or removing a software cartridge. To remove a cartridge, 1. Place the end of a flat-blade screwdriver into the removal notch. Lift up on the cartridge with the screwdriver to un-mate the connections. 2. Slide the cartridge out of the base unit. NOTE: Only replacement software designed for a particular cabinet may be put in that cabinet. Example: Only 408 software will work in the 408 cabinet. To install a cartridge, 1. Orient the cartridge so that the connector end is toward the base unit opening. The removal notch, located at the top rear of the cartridge, should point to the front of the base unit. 2. Gently insert the cartridge into the base unit cabinet until it seats into place. Press down on the cartridge to secure the connection. Digital Telephone SystemIMI66–107 2 – 48 Installing The DSU

Software Cartridge Typical Common Equipment Base Unit (Lift out to remove) CAJS091A Software Cartridge Typical Common Equipment Base Unit (Push in to install) CAJS091 Figure 2–23: Removing The Software Cartridge Figure 2–24: Installing The Software Cartridge IMI66–107Digital Telephone System Installing The DSU 2 – 49

2.15.4 Master Clearing The System To reboot the system and load the new software, 1. Restore power to the system. 2. Perform the master clear procedure from the VDT or at the programming station as follows: ·pressINTERCOM, ·dialS# 746S, ·dial90, ·dial51684, ·pressSPEAKER. 3. Use the VDT programming procedure to re-load the system data base into the system memory. Digital Telephone SystemIMI66–107 2 – 50 Installing The DSU