Johnson Controls Fire Alarm Controller 4009 True Alert

Measure the battery voltage after discharging

Is the battery voltage at least 21 V after discharge?

Enter the number of years since battery installation

Has it been less than 4 years since installation?

Enter the number of months since battery manufacture

Has the battery been installed within six months of manufacture?

Wiring the Repeater as part of an extended Class A loop

Route the wire from the DCAI to the A+ and A- inputs on the Class A Adapter terminal block attached to the Repeater.

Route the wire from the B+ and B- outputs on the Class A Adapter terminal block to the appropriate inputs on a peripheral notification appliance.

Route the wire from the first appliance to the next one, repeating for each device.

Route the wire back to the DCAI after all devices have been added.

Is the 4100-6103 Dual Class A Isolator (DCAI) part of the EPS configuration?

Is the repeater fitted with a Class A Adapter?

Is the 4905-9929 TrueAlert Isolator Module excluded from the extended Class A Mode?