（1）Dual input; receives alarm signals from passive normally-on/off monitors such as pressure switch, water flow indicator, flammable gas detector, independent detector for electric fire protection, as well as operating signals from linkage equipment such as 280°C fire-resisting damper. Both inputs have the “operating” indicators directly indicate the statuses of alarming/operating.
(2) A protective circuit is added to the signal detection area to avoid incorrect wiring or damage of the module caused by short circuit. As for equipment that provides passive normally-on alarm signals, the input module may detect the shut-off failure of its attached equipment when load resistance is connected in the contact spots, ensuring system stability and reliability.
. Electronically encoded with only one ID; online addressing by controller or addressing by encoder; automatic log-in, convenient installation and debugging.
· A CPU and smart software are built in, high smartness level.
· Convenient wiring, good-looking appearance, suitable to DH86 junction box.
· Working temperature:－10℃ ～+50℃
· Bus working voltage: 24V Pulsating voltage
· Standby current:＜0.35mA
· Operating current:＜0.8mA
· Alarm indicating lamp: Red, flickers during routing inspection, keeps lighting during alarming
· Carried standard:GB16806-2006 Fire-Fighting Linkage Control System
· Working humidity: ＜95% RH (No condensation of moisture)
· Wiring system: Two-wire bus (non-polarized)
· Bus length: ≤2000m
· Load resistance: 1/4W 47kW
· Protection level of casing: IP30
