Specifications

151117 A-3
Four-Wire Smoke Detectors
System Sensor
1100 A N/A 20 / loop
1400 A N/A 20 / loop
1451 (B401B) A A 20 / loop
2300T A N/A 20 / loop
2300 A N/A 20 / loop
2300TB A N/A 20 / loop
2400 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
Table A-2: Compatible Four-Wire Smoke Detectors
Manufacturer Model
Silent Knight
SD-P24F with SD-B4@ base
Detection Systems
DS200/DS200HD
MB200
ESL
445 Series
449 Series
Gentex
624
824
2040-24 Power Supervision Unit
System Sensor
1851B
2851/2851BTH
DH200ADCD
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 Loop
Head Base