• The non-polar two-bus design can be regarded as the same fire detector connecting to the alarm buswhich is convenient for construction and flexible in use.
• The numbering of the input device by the encoder makes it possible to display the specific address and working status on the alarm controller and the fire display panel.
• Use isolated power (bus power) to power the feedback section
• Using an ASIC, stable and reliable operation

External terminal arrangement and description for IM501 Input module

Wiring instructions:
T+, T- : Alarm Bus (No polarity)
X1, X2 : Input passive signal (terminal resistance 4.7K)