Vodavi Starplus 2448ex Hybrid Key Telephone System Installation Manual

							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