NEC Univerge SV8500 Operation And Maintenance Manual page 53

In this processing, the faulty PM (Line/Trunk Card) is isolated from the system and, at the same time,
the calls associated with that faulty PM (Line/Trunk Card) are released. No calls related to the faulty
PM (Line/Trunk Card) are processed and the system normally runs without the faulty PM (Line/Trunk
Card).
• Data Copy Restart
In a system of dual configuration, the RAM memory (including the data memory) is copied from the
ACT-side CPU into the STBY-side CPU, and ACT/STBY is changed over and monitor restart is exe-
cuted.
In the case of this restart processing, only the ACT-side CPU and the STBY-side CPU are changed over
without any effect on the current connections. However, no call processing is executed while the restart
processing is in progress (from copying until the end of the changeover).
• MEM (Memory)
A memory module that is mounted on the CPU Card.
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CHAPTER 1 General