Edwards LaserSense HSSD-2

Chapter 2: Installation and assembly
28 LaserSense HSSD-2 Aspirating Smoke Detector Installers Handbook
Figure 17 : Rear power cable arrangement
(1) Cable gland
(2) Ferrite
(3) Earth stud
Power supply connections
The detector may be powered by any EN 54-4 or UL/ULC and FM compliant
monitored 24 VDC power supply of sufficient capacity. (See Figure 18.)
Figure 18: Detector power supply connections
(1) 0 volt (−24 VDC)
(2) Safety earth
(3) +24 VDC
(4) 0 volt (−24 VDC)
(5) Safety earth
(6) +24 VDC