Resetting The System - NEC ux5000 Hardware Manual

4.
5.

2.4.1.4 Resetting the System:

While the system is powered up, data may be written to the S-RAM or flash memory at any time. If
the UX5000 requires a system reset, you must power off the system using the power switch on the
front of the Base chassis.
This procedure will allow the system to wait until any data-writing process is completed, avoiding the
possibility of corrupting the data. If the system unexpectedly loses power while flash memory data is
being written, it could become corrupt and the system may not come up. If the S-RAM data is
corrupted, the telephones may have erratic operation.
✎ To perform a cold start or hot start, or perform a software upgrade, refer to "Section 2-8 SYSTEM STARTUP" on
page 2-91
Chapter 2
Tighten the thumb screws (a screw driver can be used, if desired).
If external BGM or MOH is being installed, plug the cable into the CN8 or CN9 sub-mini pin
jack connector on the CCPU. The other end of the cable plugs into the music source.
● Refer to the PGDAD Module in the Telephones and Optional Equipment section for
details on connecting to a music source.
When the system software is upgraded, the flash memory is updated with the new
●
software version. You can use the Hot or Cold start-up methods or upgrade your system
software using the steps which follow.
Customer information is stored in the RAM memory and, in case of a power failure, will be
●
restored. The lithium battery in the system saves the RAM memory when power is lost.
Chapter 2 - Blade Installation and Startup
Figure 2-7: TIGHTEN THUMB SCREWS
! IMPORTANT !
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