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Power Failure
Programming (except recorded announcements) saved
Operation
eight weeks after power failure if battery is fully charged
at time of power failure
Recorded announcements saved 3 hours
Telephone Line
Management
Analog loop start
Ring detection
DTMF dialer/receiver
Call progress detection
Serial Port
RS-232C
9600 bits per second, full duplex
8 data bits, no parity, 1 stop bit
XON/XOFF protocol
8-conductor modular jack
Voice
Real-time, natural speech
Announcements
ADPCM analysis, compression, storage, and synthesis
Sampling rate: 8 KHz
Total announcement time: 64 seconds
5 announcement tracks
Visual Indicators
AC power
Battery OK
Off-hook (talking)
Regulatory
Approvals
FCC Part 15 (EMI), Class A approved
FCC Part 68 (telephone) approved
Registration number: GRM3U8-19187-CIE
Ringer equivalence (REN): 1.0B
Jack (USOC): RJ11, RJ12, RJ13
Meets or exceeds U.L. 1459
U.L. listed power supply
C-2 Specifications