System Functions. Ampac LoopSense AS

3. System Functions

3.1

3.2

3.3

System functions are the key functions that provide the mechanism to change the way the panel responds to a condition, and the way an input/output behaves to a situation. It is there fore important the engineer has a good understanding of the functions recapped below.

I/O Control

There is a mechanism for controlling the inputs & outputs connected to the FACP through the front panel control / programming menu. This feature controls all the outputs, sounders, strobes/beacons and settings for alert & evacuation.

Disable / Enable

This feature is also available as part of the user interface on the front panel. It is possible to enable or disable inputs and outputs connected to the FACP. Inputs include zones, loops; loop devices and panel Add-Ons. Outputs include sounders, strobes/beacons etc.

Silence / Resound

3.4

3.5

A

S

7

2

4

0

S e c ti o n

7

.8

P t

2

This feature is available as part of the user interface on the front panel. This is a toggle button & pressing it once will cause the activated sounders, relays & beacons to be silenced (If they are configured with a silence-able attribute) and pressing the button again will cause the same devices to resound (referred to as a “toggling action”).

However there can be some devices in the system, that are not configured to be silenced. For those devices, pressing the Silence/Resound button will have no effect and they will continue to sound / operate as programmed.

System Response Times

The panel reports a fire from a detector within 10 seconds and fire conditions originating from an

MCP are reported within 1 second.

Alarm devices (sounders, strobes and beacons) are activated within 3 seconds of a MCP being operated.

Sounder and Strobe Synchronisation

The FACP supports Apollo synchronisation schemes. All loop sounders and beacons within the panel are synchronised.