Appendix E: Specifications
Alert Inputs
Number of Inputs: 8 (thermistor installed on input #1 for local
temperature monitoring)
Input Connector: terminal block
Input Types: N.O./N.C. contact, 2.8K thermistor (-20 to 150°F
or -30 to 65° C)
Input Characteristics: 5.6K to 5V (Short circuit current: 1mA
max.)
A/D Converter Resolution: 10 bits ±2 LSB
Input Protection: 5.5VDC Metal Oxide Varistor with fast acting
diode clamps.
Microphone
Internal Electret Condenser: For listening in to on-site sounds
and detecting high sound levels.
Phone Interface
6' Cord w/RJ11 Plug: For connection to a two-wire analog
telephone line.
Extension RJ11 Jack: For connecting other devices on the same
telephone line.
Line Seizure RJ11 Jack (Model 1118 Only): Devices connected
to this jack are disconnected in the event that the 1118 must dial
out for an alarm.
Phone Line Protection: Metal Oxide Varistor & self-resetting
fuse
LED Indicator
System LED: On steady when the unit is in RUN mode. LED
blinks once every few seconds while in STANDBY mode.
Relay Output (1108-CS/BS/RC only)
Rated for 2A 30VAC/2A 30VDC maximum.
129