Features

Isolation of short circuit, automatic restore when short circuit is cleared.

Standards: UL864 NFPA [70,72]

Description

In fire alarm system, such condition often occurs that partial short circuit of loop affects the whole system. DC-M9504 Base Mount Isolator can isolate the shorted circuit from the whole system and light the yellow LED to ensure normal operation of other parts and locate the part in fault. After the fault is cleared, the part of the loop will be re-included into the system. The isolator is applicable to Class A loop wiring.

Connection and Wiring

1, 3: Loop output cable, 1 is positive and 3 is negative.

2, 4:Connecting with remote indicator output (used when connecting to the detector with remote indicator output).

5, 6: Loop input cable, 5 is negative and 6 is positive.

Recommended Cabling 17AWG~14AWG (maximum 14AWG) fire cable