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Each point can be assigned to a zone and programmed with location text as required. The sounder can be

assigned to any output group and programmed as pulsing/continuous etc as with any other sounder circuit

controller.

There are a couple of items to note with this device: -

a) It is essential that zone 1 is NOT in a fire condition when an "Auto Learn" is performed (If it is and DIP switch 8 is

on, then the device will identify itself as a call point).

b) The PCB has yellow LED's to indicate a short or open circuit on each conventional zone, but this is reported

back to the panel as a general fault. A fault on the sounder circuit wiring is also reported back to the panel as a

general fault.

7.3 Manual Call Points/Interrupts

With XP and Discovery "interrupt" devices, the panel knows the address of the device within a second of activation.

The panel then has plenty of time to recheck this to prevent against transient vibrations from giving false alarms

and still comply with the timing requirements of BS 5839.

The Series 90 devices cannot identify themselves in this manner. Therefore if 5839 response rates are required it

will be necessary to change to XP or Discovery devices.

7.4 Mixing Series 90 with XP95 and Discovery

The MX4000 range supports series 90, XP95 and Discovery devices on the same loop to allow gradual building

upgrades.