Notes to Technicians and Testers.
This incite Sigma and Syncro range of panels have been designed to meet AS7240.2 and AS7240.4
These standards are very different in both their panel operation and operating parameters from the old
Australian standards, AS4428.1 and AS1603.4.
The main differences are outlined here as follows;
Access Levels: AS7240 allows for 4 different access levels as follows:
1. Public Access Level: This level is always active
a. Silence the panel buzzer
b. Perform a lamp test
2. Operator Access Level: This level is entered by turning a key or by entering a code. This is the
level accessible to the Fire Brigade.
a. All the above plus
b. Sound Alarm Devices, e.g. Activate and Evacuation signal
c. Silence Alarm Devices
d. Reset the panel
e. Activate Delays
f. Set Test mode
g. Disable circuits
3. Technician Access Level: This level is entered by entering a code which is different from that used
for Access Level 2, or setting a switch which is not normally available to an Operator, e.g behind a
locked door.
a. All of the above plus
b. Changes to the configuration, e.g set delay times, add devices/modules to the panel.
4. Engineering Access Level: This level is entered via a laptop or other device using specialised
software to upgrade or change the firmware within the panel. This level is only available to the
manufacturer and authorised technicians
Disablement: This is not an isolate! An isolate allowed the circuit to be monitored and indicate its condition
without causing activation. A disablement, depending on the design, may or may not allow a circuit to be
powered but will not indicate the state of the circuit. The circuit is disabled.
The standard list a disablement as: “Disablements shall inhibit all corresponding mandatory indications or
outputs or both, but shall not prevent other mandatory indications and/or outputs.”
Care must be taken when enabling a disabled circuit to ensure that it is not active.
It is good practice to perform a reset on any disabled detection circuit before enabling it.
