DAS 1221, Руководство по установке, Страница: 8 / 21

Self-Test
The included 2-pin test connector can be used to independently check the Panel and confirm its operation
without any other DAS equipment connected.
To do the self-tests, remove plugs J1-A and J1-B, then set the DIP switches (1-9) on SW1 to ON and SW2 to
the factory default settings shown in Table 3 on Page 12. Confirm that all LEDs are OFF, except AC Power
Normal which should be GREEN. The test plug can be connected between the input ports on J1-A and
J-1B to simulate alarm signals for each type of alarm. The corresponding AMBER LEDs on the Panel front
should illuminate for each type of alarm. Don’t discard this plug; keep it in the Panel to enable further
troubleshooting if required.
Buzzer
One of the requirements of UL-2524 is that an audible alarm be included as part of the Panel that can
ONLY be silenced for up to 24 hours by unlocking the Panel and pressing the silence button inside. This
requirement is to keep unauthorized persons from turning the buzzer off. If the DASAlert Panel is located
close to the building’s Fire Panel (which has an audible alarm triggered by the DAS alarms) then the
DASAlert buzzer can be permanently disabled by setting DIP switch SW-2 (switch 9) to the ON position. If
the key is lost, contact Technical Support for alternative ways to silence the buzzer.
The buzzer has three audible modes:
• It will buzz once every 10 seconds if any alarm is triggered.
• It will buzz once per second if there is a communications fault of if the Panel’s backup AA battery pack
is dead or not installed.
• It will buzz continuously if there is no alarm when the silence button is depressed.
DC Power for the Panel
The Panel has an internal universal DC power converter that enables operation from any DC input voltage
on connector J10 between 12 -55 VDC. The supplied 120 VAC to 48 VDC socket-mounted power supply can
be connected here. This DC voltage can also be supplied from the Backup Battery Unit (BBU) that powers
the BDA. There is an indicator that glows GREEN when DC power is present. The current consumption
is very low so the wires providing this power can be very long, especially if the supplied 48 VDC power
supply is used.
The current consumption is as follows at typical voltages:
Maximum Current Consumption:
12 VDC 100 milliamps
24 VDC 50 milliamps
48 VDC 24 milliamps
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