Figure 1-1 Programming Flowchart - NEC Xen Master Programming Manual

Multiline Terminal
Programming
S 1
ECTION
G
ENERAL
I
NFORMATION
S 2
ECTION
P
ROGRAMMING THE
S
YSTEM
Programming Manual
The Xen system is a stored-program controlled system. When the system is initially
powered up, the CPU scans each possible interface slot to determine the hardware
configuration. The system stores this information and the default values in the
resident system program memory. After initially powering up the system, a trained
technician can change the resident system program to meet the specific needs of
an individual customer.
The battery on the CPU
!
before the programming begins, data may be lost if a power outage occurs.
System data programming may be necessary when:
The system is installed for the first time.
Components of an existing system are replaced.
Functions of an existing system are changed.
New Installation
Develop System
Data Sheet
Installation
Test System with
Default Values
System Data
Programming (Note 1)
TEST
Note 1: For new installations, system default values are assigned when the
power is turned on. Therefore, only program the system data to be
changed.
Note 2: For component replacements, program the relevant system data.
Note 3: For function changes, program the system data to be revised.

Figure 1-1 Programming Flowchart

Chapter 1
must be connected.
If the battery is not connected
Existing System
Component
Replacement
Rewrite System
Data Sheet
Installation
System Data
Programming (Note 2)
TEST
Function
Change
Rewrite System
Data Sheet
System Data
Programming (Note 3)
TEST
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