NEC Xen Master - Figure 5-11 KSU Backup Battery Replacement

NEC Australia Pty Ltd Xen Master & Xen Axis
5 - 114 Installing Electronic Telephone Units
A6-324000-642-01 – Release 4.0 May 2001
3.3.4 LED Indications
CPU LIVE indications are listed below.
✆ Blinking Red Normal Operation
✆ Steady Red Operation Stopped (power still on)
✆ Off No Power
LED2 indications are listed below.
✆ Steady Red System Power On
✆ Off No Power
ESI LIVE
✆ Steady Red ESI On
✆ Off ESI Off
ESI Busy
✆ Steady Red ESI Busy
✆ Off ESI available
3.3.5 Replacing Memory Backup
The MBD( )-U13 ETU provides memory backup for
approximately 21 days. The Ni-Cad battery should be
replaced about every two years.
Refer to Figure 5-11 KSU Backup Battery Replacement.
Figure 5-11 KSU Backup Battery Replacement