NEC Univerge sv8500 Manual page 2723

SYSTEM
FAULT NAME
MESSAGE
13-N Digital Line Warning
13-O Digital Line Failure
13-P Digital Line Restore
DRU/DAU Battery
13-Q
Operation
13-R AC Line Operation
7.9.3 Technical Terms for Explaining Message Detail Data
This section explains how to interpret message detail data in each system message. In the explanations, the
following technical terms are used:
• Circuit Card Location Information
MG U
The sections and figures that follow explain the meaning of each technical term.
System Messages for DRU/DAU
During data transfer from the Telephony Server to the DRU/DAU, a fault such
as Frame Loss, Multi-Frame Loss, Signal Link Down Detect, etc. has occurred.
A fault represented by the system message "13-N" has occurred more than 16
times consecutively within a one-hour period.
A fault indicated by the System Message "13-N" or "13-Q" has been restored to
normal.
The DRU/DAU is operating on the backup battery because the AC source power
supply has failed.
The AC source power supply has been restored to normal.
G
VOL.3-236
CHAPTER 2 TERMINAL-RELATED DEVICES
MEANING OF FAULT