Edwards Signaling 2400 Series - Manual (Page 33)

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Test Mode
The Test Mode is used to verify the operation of the panel, alarm initiating devices, and the integrity of field
wiring.
WARNING
Fire detection capability on the zone(s) under test is NOT functional in the Test Mode.
The panel will leave the test mode, enter the alarm mode, and sound an alarm if a zone not selected for
testing detects an alarm. The panel will leave the test mode and enter the supervisory mode if a zone not
selected for testing detects a supervisory condition. Putting the panel in the test mode also puts it in the
trouble mode.
Select an IDC zone(s) for testing by operating its respective zone disable switch(s). The "audible" test
mode is entered from the normal or trouble modes by simultaneously pressing the
TROUBLE SILENCE and
RESET switches for at least one second. This causes the zone disabled LED to show a 3-phase flash and
the trouble buzzer to pulse slowly. The trouble buzzer can be silenced in the test mode. The alarm relay,
Relay/City-Tie Module (when configured to transmit alarms) will not operate in the test mode unless a valid
alarm on any zone not being tested is received. Pressing the
TROUBLE SILENCE and RESET switches a
second time, for at least one second while in the audible test mode, puts the panel in the "silent" test
mode. This causes the zone disabled LED to show a 4-phase flash and the trouble buzzer continues to
sound. The silent test mode operates identically to the audible test mode with the exception that the IACs
are not activated. The use of a Preventive Maintenance Tester (P/N 46288-0017) is recommended when
performing a silent walk test.
Any alarm (verified or non-verified) on a zone under test will operate both IACs. The panel will sound one
short pulse for zone 1, five short pulses for zone 5, etc., audibly identifying the number of the zone
successfully tested. A trouble condition or ground fault on any zone under test, or an open or ground on
either IAC, sounds a one second pulse on both IACs. If the auxiliary power is programmed as resettable, it
will be deactivated while the zone under test is being reset.
In the test mode, the time the disabled IDC zone(s) takes to reset is characteristic of the source initiating
the test sequence, as shown in Table 6.2. This feature is primarily used when testing in the silent test
mode. The IDC zone reset period may be determined by measuring the length of time that the nominal
IDC voltage (24 VDC) equals 0 VDC.
Table 6.2 - Test Mode
Initiating Condition IAC Response
(Audible Test Mode Only)
IDC Zone Reset Period
(Audible & Silent Test Modes)
Alarm on disabled IDC under test Coded zone # 8 seconds
Open on disabled IDC under test 1 second pulse 4 seconds
Ground fault on any panel wiring 1 second pulse 2 seconds
Open IAC circuit 1 second pulse Not Applicable