Description

The DIM800 Detector Input Module interfaces two collective detector circuits onto the MX addressable loop. Each circuit can support 3mA of detector quiescent current and requires a 4k7 Ohm End Of Line resistor. The two circuits may be recognised as a single point (MX4428) or two separate points (MX1). Refer to the specific MX fire alarm panel specification. Unused circuits must be terminated with an ELD resistor. The DIM800 requires a suitably rated and separately protected external 24V supply to power the detector
circuits.

Specifications
– Operating Voltage 20 to 40Vdc*
– Quiescent Current 280µA (max.)
– Loop Alarm Current 2.8mA (max.)
– Ambient Temp -25°C to +70°C
– Relative Humidity 10% to 95% (n/cond)
– Detector Load 3mA (max per input)
– Detector ELD 4k7 Ohm
– External Supply 20 to 28.7Vdc**
– Ext. Current/Circuit 7.5mA (normal)
– Ext. Alarm Current 30 to 50mA***
– Dimensions (HWD) 61 x 84 x 25mm
– ActivFire Listed afp-1446
– FPANZ Listed VF/643

* MX addressable loop voltage
** Voltage restrictions for some detectors
*** External Supply Alarm / Short Circuit