Comdial DX-80 Technical Manual page 69

8. Plug the AC power cords into a dedicated, non-switching UPS.
Only a qualified telephony technician should perform this procedure
since hazardous voltages are present inside the KSU cabinets.
DO NOT TOUCH exposed terminals or fuse connections at or around the power supply
and fuse area while the system is powered and the KSU cabinet cover is removed!
9. Turn on the power supply to the DX-80 KSUs by simultaneously moving the ON/OFF switch
to the ON position on KSU1 and KSU2 (if two cabinets are installed)
10. Observe the LED on the CPM (at the left side of the module). The LED should begin to flash.
11. The LED located at the ON/OFF button of the KSU follows the operation of the LED on the
408M. Both of these LEDs indicate the operation of the peripheral processors on the 408M,
and should be flashing in unison.
12. The LED on the APM4 will also begin to flash indicating that its peripheral processor is run-
ning.
13. As the main CPU comes on-line it will detect the Cold Start status of a specially blocked mem-
ory address. Once this is detected, the system forces default data into operational memory.
Note: This procedure overwrites all customized customer programming.
While the system is detecting and force-loading data, it flashes the CPM LED at various fast
rates, and then stabilizes the LED again at a consistent rhythmic rate. When the LED reaches
this consistent rate, the system has finished initiation and is operational. The default data is
loaded and ready, and the telephones should be functional. In this status, all CO lines will ring
at extension 101, all extensions may take and place calls, and all systems features are opera-
tional per their default configuration.
14. You can now begin customizing the database to meet your customer's specific site needs. For
details, refer to the DX-80 Technical Manual, Volume II, Programming.
October, '03
DX-80 Installation & Maintenance
WARNING
Comdial 69