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7.
Re-check that the +ve and -ve legs of each loop have a reading greater than 20
MΩ with respect to the panel earth stud.
8.
Re-check that all sounder circuits have a 4K7 resistance between the legs and that
each leg has a reading greater than 20 MΩ with respect to the panel earth stud.
9.
No external wiring should be connected to the control panel PCBs.
10.
All detection loop's have shorting links connected: i.e. LOOP 1 +ve feed to +ve return
and -ve feed to -ve return
11.
All sounder circuits have a 4K7 resistor fitted in the output terminals.
4.9.2 Voltage Tests
The addressable system depends on an external power supply unit which allows all of the
boards to operate. If a fault develops, it could seriously affect the operation of the panel,
therefore if any uncertainty it is recommended to re-check the supply as detailed in Section
4.1.7, before continuing. The control panel can be powered up.
1.
Apply the mains to the power unit first.
2.
Connect the batteries.
On first powering up the panel, the PROCESSOR FAULT LED and the internal
buzzer are activated.
Reset this by pressing the small button the LED display board.
Reset the main processor by pressing the reset switch.
The control panel will begin to initialise:
1.
The green SYSTEM HEALTHY should be the ONLY LED illuminated.
2.
The VFD will display:
(i)
Number of LOOPs, e.g. 4 LOOP.
(ii)
PRINTER INSTALLED.
(iii)
Further configuration, e.g: REPEATER INSTALLED
(iv)
The DATA checks are indicated, i.e. DATA CHECK, M - Messages, P - Panel
outputs and L - Loop outputs.
TM0064
Page 78 of 91
Issue 2.01
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