Preliminary Procedures; Power Up Sequence - Vodavi Starplus Triad-S Installation Manual

Preliminary Procedures

Preliminary Procedures
1. Make sure the Basic Key Service Unit (BKSU) is properly grounded to
2. Verify that all expander modules are firmly seated onto their
3. Inspect the MDF for shorted wiring and improper polarity that would
4. Make certain the lithium battery switch (SW2) on the MBU of the
5. Make sure the MDF cables connected to the KSU are secure and are

Power Up Sequence

The power up sequence involves 1) the proper application of AC power
to the system and 2) defaulting the system. A successful power up is
assured if the installation checklist is followed.
1. Plug the AC power cord of the Key Service Unit into the dedicated
2. Remove the BKSU cover, set SW1 on the MBU to the ON position. Set
3. Turn the power switch of the KSU to ON.
4. Set (SW1) on the MBU to the OFF position to retain changes to the
Voltage Destination
cold water pipe or earth ground.
connectors.
affect the Digital Terminal or DSS console.
BSKU is set to the ON position to enable the battery backup option.
plugged into the correct position.
117V AC outlet.
(SW2) (BATT) to the ON position.
database.
The system is ready for programming. If problems occur, refer to
Chapter 4, Maintenance and
Table 3-1: Power Supply Tests
117V AC
Troubleshooting.
Voltage Reading
+117V AC,
±10%
Test Point Location
Commercial Power
Source
3-3