NEC ElectraElite IPK, General Description Manual

Page: 148 / 151

Electra Elite IPK Document Revision 4
General Description Manual 5 - 19
___________________________________________________________________________________
___________________________________________________________________________________
10.4 External Tone Ringer/Night Chime Output
H
Output Level: –10 dBm
H
Output Impedance: 600
Ω
H
Relay Contact Rating: 500 mA, 24 Vdc
10.5 SMDR Output
H
Female Connector (System Output) Standard DB-9 (straight)
10.6 PC Connection
H
Female Connector (System Output) Standard DB-9 (straight)
10.7 Relay Contact
H
All Relay Contact Ratings: 500 mA, 24Vdc
S
ECTION
11 B
ATTERY
B
ACKUP
The Electra Elite IPK system has battery backup functions for system backup and for
memory backup.
11.1 System Backup
During a power failure, the system is backed up using a rechargeable battery.
This battery backup supports all system operations for approximately 30
minutes.
11.2 Memory Backup
The CPUI( )-U( ) ETU has a battery installed to provide backup of system
memory. When the battery is fully charged, system memory (programmed
data) is retained for approximately 21 days.