Linx Technologies LICAL-DEC-HS001 - Manual (Page 15)

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Figure 15: Steps to Send a Copy
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
System Expansion
A system based on the HS Series can be expanded in several ways. One
of the simplest is to add users by adding more decoders to the receiver
output. With each decoder added to the chain, another 15 encoders can
be used within the system. The associated decoder data line outputs can
be connected together so that any decoder activates the circuit. So, if Data
Line D1 is being used to activate a relay, then the D1 lines of Decoders A,
B, and C can all be connected to the input of the relay. Diodes are needed
to isolate the active line from the inactive lines, preventing a short circuit.
The ability of the HS Series decoder to create copies of itself allows for the
expansion of access points within a system. This means that the same
encoder can access multiple locations without any hardware changes. An
example of this would be a single keyfob transmitter that can open the
front door of a building and the supply room. A master decoder is first set
up with all of the users for the system. It is then connected to other HS
Series decoders to transfer its User Data. These copies are then deployed
in other locations and will respond to an encoder the same way the master
system will. For greater security, these copies cannot make other copies
or add new users, just change Control Permissions. Because of this, it is
recommended that only copies are used in the system while the original
is stored in a secure location. This is particularly useful in settings where
access to the decoder cannot be strictly limited.
Receiver
Decoder
A
Decoder
B
Decoder
C
15 Transmitter/
Encoders A
15 Transmitter/
Encoders B
15 Transmitter/
Encoders C
Expanded Users
Figure 16: Expanding Users with the HS Series
Send a Copy of Decoder A User Data to Decoder B
1. Provide a serial data connection from decoder A’s KEY_OUT line to
decoder B’s COPY_IN line, and decoder B’s KEY_OUT line to decoder
A’s COPY_IN line.
2. On decoder A, set the SEND_COPY line high and then set the LEARN
line high to enter Send Copy Mode. Next, take both lines low.
3. The MODE_IND line on decoder A is set high while data is being
exchanged. The MODE_IND line on decoder B toggles as each user
profile is being received from decoder A. If a successful copy has been
made, the MODE_IND on decoder B blinks twice.
4. The copied decoder B is only allowed to learn new permissions from
the copied set of users and activate data lines accordingly. All other
features are removed from decoder B until its memory is successfully
erased.