Specifications

Model SK-4224 Fire Alarm Control Panel Installation/Operation Manual
A-4 151068
System Sensor
(Cont.)
2300 A N/A 20 / loop
2300TB A N/A 20 / loop
2400 A N/A 20 / loop
2400 (DH400) A N/A 20 / loop
2400AIT A N/A 20 / loop
2400AT A N/A 20 / loop
2400TH A N/A 20 / loop
2451 (B401B) A N/A 20 / loop
2451DH (DH 400) A N/A 20 / loop
2451TH (B401B) A N/A 20 / loop
2800 A N/A 20 / loop
2800TH A N/A 20 / loop
2851B (B101B) A A 20 / loop
2851BTH (B101B) A A 20 / loop
2851DH A A 20 / loop
2851TH (B101B) A A 20 / loop
Table A-1: Compatible Two-Wire Smoke Detectors
Manufacturer
Enhance
Mode
Compatible
Model Name or Number
(Base model name or number in
parentheses.)
Compatibility ID
# per Circuit
Head Base