Main Panel Block Diagram The fire alarm system continuously monitors the detectors. Detectors are divided into zones. (Using Software configuration file in the base board). Detectors are connected to the system through loops. (physically) The Loops are connected to the loop boards. Each Board can have 3 loops. Each loop can have 254 detectors. (Depending on the address size) Each Loop has an address and each device has an address given using DIP switches. (These are stored in the Software config file) Devices send digital data packets containing the Addresses and the Data. The digital data packets are sent digitally using analog signals through the twisted pair cables. ( Analog Addressable Signals ) ID address on DIP switches All addressable loop units must be given an address between 1-254 to be operational. The loop units located on the same physical loop must all have unique addresses. The address is set by a 8 pole DIP switch located on each addressable unit...
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