NEC Electra Elite 192 Hardware Manual page 346

Issue 6
9 - 4
3.4 After Initialization
Ensure the battery on the CPUB(
connected to CN4 on the CPU.
Before any programming is attempted, connect the battery on the
CPUB( )-U10 ETU to CN4 on the CPU. This prevents loss of
previously programmed data if the system loses power.
Check all ETU slots in software to ensure the initialization process
scanned the installed hardware correctly.
A general system operation check should be performed using
default values prior to system programming.
After all previous steps are performed and any problems corrected,
system programming is complete.
After System Programming is finished, the technician should
perform a Second Initialization. Performing the First Initialization a
second time causes all programming memory to be lost. Second
Initialization refreshes the system RAM without losing any memory.
This completes the installation procedure for the Electra Elite 192
system. The technician should check the operation of each
Multiline Terminal to ensure the system is working properly.
Electra Elite
)-U10 ETU is
System Maintenance