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Vodavi Starplus 2448ex Hybrid Key Telephone System Installation Manual
Vodavi Starplus 2448ex Hybrid Key Telephone System Installation Manual
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sTARPLUS@ 2448EX Hybrid Key Telephone System SECTION 700 SYSTEM CHECKOUT 700.1 INTRODUCTION Prior to actual power up and initialization, the Key System should be checked over to avoid start up delays or improper loading. A step-by-step checklist is provided for this purpose. 700.2 PRELIMINARY PROCEDURES 1. Verify that the DC output power cord from the EPH housing is plugged into the DC connector on the KSU. 2. Make sure that the KSU and EPH are properly grounded. 3. The DC/DC Converter must be installed in the KSU and firmly seated in its card connector position. 4. The ON/OFF switches of the EPH housing and the KSU should be OFF. The breaker switch of the EPH should be ON. 5. Verify that all PCB’s are firmly plugged into the correct color coded card slot positions. This can be done by comparing the color of the PCB . ejector tabs with the colored labels on the KSU shelves. 6. The service switches on the PCB’s should be in the NORMAL (up) position. 7. Inspect the MDF for shorted wiring and im- proper polarii that would affect the Key Tele- phone or DSS console. 8. All switches on the CPB should be ON so that default data can be loaded into memory when the system is powered up, Make certain that the lithium battery is connected to the battery (+) terminal. 9. Make sure that plug-ended MDF cables con- nected to the KSU are secure and are plugged into the correct position. 700.3 POWER UP SEQUENCE The power up sequence involves the proper appli- cation of AC power to the System, monitoring DC/DC Converter and CCU LED’s. A successful power up is assured if the installation checklist has been fol- lowed. When System power is turned on, default data is loaded into memory. 1. The eight white DIP switches on the front of the CCU should all be in the ON position. 2. Plug the AC power cord of the EPH housing into the dedicated 1 IN ac outlet. Turn the power switch on the EPH to on. The input and output LED’s on the power supply should light. The AC and DC, LED’s on the front of the EPH should light. 3. Turn the power switch of the KSU to ON. The EPH ring LED will now flicker (If RG unit is installed). 4. The two red LED’s on the DC/DC Converter should light immediately. 5. The CCU has eight red LED’s located on the front of the card. If the power up is successful LED’s one, two, and three will light steady and then go off. LED eight will light and remain lit. LED five will flicker. LED’s two and three will flicker faintly. 6. Press the reset button on the CCU. The above CCU LED indications will repeat. 7. Check for +5V and +14V operation on the DC/DC Converter and adjust the +5V, if neces- sary. A digital volt meter is required to adjust the 5 volts. 8. Turn switch eight on the CCU to off to prevent accidental loading of defauft data in case of power outage. 9. The system is ready for programming. If any problems have occurred, Refer to Section 800, Maintenance and Troubleshooting. issue 3, August 1991 700-l