Linx Technologies LICAL-DEC-HS001 - Manual (Page 11)

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Send Copy Mode
The HS Series decoder has the ability to send a copy of all of the learned
encoders to another decoder. This makes it possible to use the same
transmitter, encoder, and Control Permissions in multiple locations. Send
Copy Mode is entered when the SEND_COPY line is high when the
LEARN line is taken high. Once in this mode, the decoder outputs all of
its User Data on the KEY_OUT line for asynchronous transfer to another
HS Series decoder. The decoder that receives the User Data becomes a
copy and loses the ability to create a key and send a copy. It can only set
Control Permissions until its memory is erased, at which point it regains full
functionality.
The two decoders need to be connected together with some method
of transferring asynchronous serial data, such as a wire or short-range
infrared. RF is not recommended for this transfer because it can represent
a security risk, since RF is broadcast in all directions. A wire is the most
secure method of transfer. Simply connect the KEY_OUT of the originating
decoder to the COPY_IN line of the receiving decoder and connect the
COPY_IN of the originating decoder to the KEY_OUT of the receiving
decoder. Then connect the ground lines together and send the data (refer
to Figure 15).
The Send Copy feature can be disabled by setting the SEND_COPY and
CREATE_KEY lines high when the decoder is powered on. The MODE_IND
line blinks three times to indicate that this has taken place. The decoder
cannot send a copy of its User Data again until its memory is cleared.
Get Copy Mode
Get Copy Mode is entered when valid data is present on the COPY_IN
line. The decoder reads the User Data from another decoder and saves
it in non-volatile memory. If the decoder is made into a copy of another
decoder, it cannot send the copy or to create new keys. All of the User
Data needs to be erased before the decoder can create new keys. This is
done by holding the LEARN line high for ten seconds.
Decoder MODE_IND Definitions
The MODE_IND line is the primary means of indicating the state of the
decoder to the user. The table below gives the definitions of the MODE_
IND signals.
HS Series Decoder MODE_IND Definitions
MODE_IND Definitions
Create Key Mode
ON during the key generation process and OFF when created.
Then ON for 1 second after the key has been successfully
transferred and the user profile is saved. After the 15th user
profile has been saved, it blinks* 5 times. The next user profile
overwrites the first.
Learn Mode
ON while the LEARN line is HIGH until taken LOW to enter Learn
Mode, then it flashes* for 15 seconds until time-out or until the
LEARN line goes HIGH again.
Erase Mode
ON while the LEARN line is held HIGH for 10 seconds and Erase
Mode is entered, then it turns OFF. It turns back ON again for 2
seconds when erase is completed.
Send Copy Mode ON for the duration of this mode.
Get Copy Mode
Blinks* each time a user profile has been successfully transferred
and saved. If all user profiles have been successfully received, it
blinks* twice.
Disable Send Copy Blinks* three times when Send Copy is disabled.
*Blink = ON for 1sec and OFF 1/2sec
*Flash = ON for 200ms and OFF for 200ms
Figure 10: HS Series Decoder MODE_IND Definitions