User's Manual

23
8. The 2550 must be programmed to send a Test signal to the central station a
minimum of once every 24 hours.
9. The 2550 Output Relay #1 must be programmed for Loss of Cellular Service
(i.e., Network Trouble Supervision), must be connected to a reporting zone on
the alarm panel, and the zone must be set up as closed in the normal state and
open in the off-normal state . Activation of this zone must annunciate locally.
10. The 2550 Output Relay #2 must be programmed for Failure to Receive ACK
from the Central Station (i.e., Communications Failure), must be connected to a
reporting zone on the alarm panel, and the zone must be set up as closed in the
normal state and open in the off-normal state. Activation of this zone must
annunciate locally.
9. Specifications
Panel to Model 2550 Interface
- Line Voltage 48 VDC On-Hook
- Dial tone 350 + 440 Hz +/- 0.2%
- Distortion All tones less than 2.0%
- DTMF twist accuracy +/- 1 dB
- Panel tones +/- 0.2%
- Receive level minimum - 45 dBm
- Receive S/N minimum 20 dB
- Line impedance 600 ohms
- Ringer Equivalence 0.3 REN
- Mode Loop start. 26 mA typical
Phone Line Monitor
- On-Hook voltage 8 - 50 VDC
- Off-Hook current
≥ 10.0 mA
Power
- AC Supply 16 V 40VA
- Normal Current (On Hook) 125 mA
- Maximum Current (Off Hook) 450 mA
- Battery standby current 20 mA
- Battery 12V, 1.4 AH
Radio
- Frequencies 850/900/1800/1900
- Avg. Current 215-250 mA
- Peak Current 1.3 – 1.5 A
- DC Voltage 3.3- 4.5 V D.C.
- Sensitivity -106 dB (typical)
Environmental
- Temperature Range
-30
o
to +70
o
C
- Humidity 0 to 95% non-condensing