IN1 - External device connection 11
REF - External device connection 22
Step 5 Use a ratcheting torque flathead screwdriver to tighten the alarm connector captive screw (above the installed wire leads)
to 2 in-lb (0.23 N-m).
Do not over-torque the power and alarm connectors’ captive screws. Do not exceed 2 inch-lbs (0.23 N-m)
torque.
Note
Step 6 Repeat the above steps to insert the input and output wires of one additional external alarm device into the alarm connector.
What to do next
The following figure shows the completed wiring for two external alarm devices. The first alarm device circuit
is wired as an alarm input circuit; the IN1 and REF connections complete the circuit. The second alarm device
circuit is wired as an alarm output circuit that works on a normally open contact basis; the NO and COM
connections complete the circuit.
Connecting the Cisco ISA 3000
10
Connecting the Cisco ISA 3000
Wiring the External Alarms