– –
– –
10
11
GND
GND
VCC
NC
1
NC
2
NC
3
GND
4
VCC
5
PDN
6
RSSI
7
DATA
8
NC
9
NC
10
NC
11
NC
12
NC
13
NC
14
GND
15
ANT
16
RXM-***-LR
220
100k
D6
D7
SEL_BAUD
SEND_COPY
GND
GND
COPY_IN
CREATE_KEY
KEY_OUT
MODE_IND
D5
D4
D3
D2
VCC
VCC
D1
D0
DATA_IN
LEARN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
LICAL-DEC-HS001
From Copy Input Port
100k
100k
GND
GND
GND
VCC
VCC
VCC
GND
220
Figure 10: LR Receiver and HS Decoder Schematic
Typical Applications
The signal sent by the HS Long-Range Handheld
Transmitter can be received by the LR Series
receiver module or the LT Series transceiver
module. The outstanding sensitivity of the LR Series
receiver offers the best range when used with a
Linx OEM transmitter. The receiver module is then
connected directly to an HS Series decoder, which
decrypts the transmitted signal.
When a button is pressed on the transmitter, a
corresponding line on the decoder goes high. This
is then connected to external circuitry to perform
whatever function is required by the application.
The transmitter and decoder must be synchronized before they can work
together. This is done by creating a new encryption key in the decoder,
then transferring it to the transmitter as previously described.
Figure 10 shows a schematic for a typical receiver application. The
handheld transmitter is set to 4,800bps, so the decoder’s SEL_BAUD line
needs to be tied low.
The decoder has several unique features, such as Send Copy, and TX_ID.
As the name suggests, “Send Copy” allows the users and associated
Control Permissions of one HS Series decoder to be transferred to another.
This is useful if the same users and permissions are desired at multiple
locations, such as the front door and back door of a building. Please see
the HS Series Decoder Data Guide for more information on this feature.
The TX_ID line outputs a number associated with the originating transmitter
/ encoder. Linx Application Note AN-00156 shows how to use this feature.
Data guides for the LR Series receiver, the HS encoder, and the HS
decoder can be found on the Linx Technologies website at
www.linxtechnologies.com.
Figure 9: Receiver and Decoder
