User guide

AN24 & AN28 Annunciators Instruction Manual

Audible Horn Enable/Disable

The annunciator contains an audible internal horn. This horn may be

disabled with the rear-mounted switch located above the signal

connector. To enable the horn, move switch 4 to the ON position. To

disable the horn, move switch 4 to the OFF position.

Enabling/Disabling Silence Option

ISA sequence option 1, Silence Pushbutton, includes a silence

pushbutton. This option may be disabled, removing any effects of the

silence pushbutton or silence pushbutton external contact. This option is

enabled by factory default.

Silence Pushbutton Enable/Disable

1. Press and hold ACK and RESET for 3 seconds until all LEDs

cycle, then release.

2. Press RESET within 3 seconds of release while LEDs cycle.

3. Press RESET within 3 seconds of release while LEDs blink.

4. Press the ACK pushbutton twice until LED 3 is either off or

brightly on.

5. Press the RESET pushbutton to turn LED 3 off to disable the

silence pushbutton or brightly on to enable the silence

pushbutton.

6. Press ACK to accept the silence pushbutton setting.

7. Press and hold ACK for five seconds to return to normal

operation.

The green power LED will blink quickly to indicate the unit is in the

advanced programming mode. The unit will automatically leave setup

mode if no pushbutton is pressed for 3 minutes.

Note: LED 1 and 2 are used for relay fail-safe setup (see page 24)

The unit will automatically leave setup mode if steps 2 and 3 are not followed.

Sequence F2

Horn Enabled

Sequence F2

Horn Disabled