Linx Technologies LICAL-DEC-HS001 - Manual (Page 14)

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Design Steps to Using the HS Series
Key Creation and Exchange from a Decoder to an Encoder.
1. Provide a serial data connection from the decoder’s KEY_OUT line to
the encoder’s KEY_IN line. Typically this would be a wire, contact, or
infrared.
2. Provide a serial data connection from the encoder’s DATA_OUT line
to the decoder’s DATA_IN line. Typically, this would be a wireless
connection using a transmitter and receiver combination.
3. On the decoder, set the CREATE_KEY line high and then the LEARN
line high to enter Create Key Mode. Take the LEARN line low and
toggle the CREATE_KEY line high and low ten times to generate the
key.
4. The encoder and decoder automatically exchange the key using
the DATA_OUT / DATA_IN and KEY_OUT / KEY_IN lines. If the key
exchange is successful, the decoder and encoder MODE_IND lines go
high for 1 second.
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
KEY IN
1
2
3
4
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
KEY IN
1
2
3
4
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
1
3
DATA OUT
DATA IN
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
DATA IN DATA IN
COPY IN
2
4
MODE_IND
MODE_IND
MODE_IND
DATA OUT
DATA IN
COPY IN
GROUND GROUND
DEC A DEC B
3
MODE_IND
Figure 13: Steps to Exchange a Key
Creation of Control Permissions
1. On the decoder, set the LEARN line high, then take it low to enter
Learn Mode.
2. While the decoder’s MODE_IND line is toggling high / low, set a data
line on the encoder high, then low. Repeat for each line that should be
granted permission to activate the decoder.
3. After all the desired data lines have been selected, set the LEARN line
high, then low again, or wait until the 17-second time-out occurs. The
permissions are now be saved in the decoder.
4. Select the data lines during an actual transmission to confirm that the
permissions have been successfully created.
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
KEY IN
1
2
3
4
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
KEY IN
1
2
3
4
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
1
3
DATA OUT
DATA IN
KEY OUT
CREATE KEY BUTTON
LEARN BUTTON
SEND COPY BUTTON
DATA IN DATA IN
COPY IN
2
4
MODE_IND
MODE_IND
MODE_IND
DATA OUT
DATA IN
COPY IN
GROUND GROUND
DEC A DEC B
3
MODE_IND
Figure 14: Steps to Create Control Permissions