DA-04
OPERATION. The DA-04 is an intelligent circuit, specially designed to control access to doors with an external ring. The
module, after being recorded a tune in memory, and then connecting it to the doorbell, you'll see every keystroke made on it.
If the pulses correspond to the reproduction of the prerecorded melody, the trigger circuit output, allowing the opening of the
door. If the pulses do not respond to the pattern of the melody, the circuit denied access.
The bell, when connected in parallel with the DA-04, every time you press will sound, masking and enhancing function of the
module. Only knowledge of it and the reproduction of the melody allow automatic opening of the door.
CONTROL OF OPERATIONS. RECORD OF THE MELODY. The recording of the melody is essential for module
operation. or reasons of subsequent recognition of the melody, the DA-04 is bounded at pulse specifications described in
the Specifications. The effective translation of all of them can be summarized the following points:
- 1. Make beats defined, neither too short nor too long. Note that if pulse is too fast, the circuit will be ignored. Also, must
respect the minimum space maximum between keystrokes, etc.
- 2 º. In the recording, use the insert button on the motherboard, suited for that role. While this is produce can not provide
any momentum through ring entries.
- 3 º. Perform several tests with simple melodies, (few clicks), before recording the final.
- 4 º. Avoid the use of tunes codes widely used in calls to doors, this will ensure further exclusive access.
Power supply module, the LED "Pwr" lights. Below and start recording, first place Switch 1 switches battery referenced as
"CONTROL" in the On position. Immediately after the LED is On light indicating the correct circuit availability for the
operation.
Then use the panel push button to enter the desired track. If it exceeds the maximum capacity of this, or any errors occur
before the end of the recording, the LED will also light Off.
To end the recording can wait for the module detects a blank space over 2 sec., When which the recording will automatically
be captured in memory and illuminating the LED On and Off. Also can stop recording
placing the switch 1 in O position, generating the same result and work out common mode (LED On and Off off).
rom that moment on, the notes will be recorded the melody introduced.
After recording, if it is stopped automatically, you must set switch 1 in O position and wait for the leds On and Off to turn
off.
If you have a new recording, repeat the process. The new tune will erase the previous one, being this method
Replacement the only way to remove a melody.
If there is no pulse after placing the switch 1 in ON position, the module will not record anything and consequently either
delete the contents of memory.
If you make a sustained push above 5 seconds, the module will record a recording mistake.
Sample selection
Recording function
Control
CONTROL O OPERATIONS. Playing the melody. In memory storage module is the last track recorded for playback position
the battery switch 2 switches "CONTROL" ON, LED Off automatically after giving proper lights circuit availability for the
operation.
After that, tap the button on the board. The circuit will play exactly the contents of memory, illuminating the LED On and Off
when the end of this.
Press the play button to repeat as many times as you want
Control
Sample selection
Playback function
OPERATION JOINT WORK MODE. As indicated previously, the DA-04 as the melody stored provide or deny access in
response to keystrokes made on the ring which was installed.
The DA-04 has 2 inputs for connecting in parallel to the ring
The entry of three terminals referenced in Example 230 V. Input Connection as only acknowledge its connection fed exclusively
with rings parallel to 230 VAC .
The two terminals referenced input as Input 3 to 24 V. Just admit your connection in parallel with rings fed exclusively with
voltages between 3 and 24 V. DC or AC .
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