RF803-ALPHA RFSOLUTIONS [rfsolutions.ltd], RF803-ALPHA Datasheet - Page 10

• Manufacturer Part Number: RF803-ALPHA
• Description: EASY TO USE TELEMETRY SYSTEM USING ALPHA MODULES
• Manufacturer: RFSOLUTIONS [rfsolutions.ltd]

D
D
S
S
8
8
0
0
3
3
-
-
A
A
L
L
P
P
H
H
A
A
-
-
1
1
ALPHA Encoder / Decoder IC’s
N
N
o
o
System and Functional operation
Pairing a Transmitter to a Receiver
Each transmitter is supplied a unique identity. Each time a switch is pressed, the transmitter
emits a highly secure RF signal with its identity embedded within. The Receiver can learn this
signal and allocate to an output.
Each transmitter input may be individually paired to each individual or combination of the
receiver’s outputs .This enables a powerful and flexible remote control system!
The only limitation is that each receiver has a maximum capacity of 50 pairings, these can be
from the same or any number of transmitters.
Hint: the same transmitter may be taught to any number of receivers to create ‘master keys’.
Learn Mode: Learn input activation is achieved by pulling this input to GND briefly
To learn a new transmitter switch follow this procedure (as application circuit)
Any Encoder input can be learnt to one or many of the receiver outputs.
Each input must be learnt to each output individually by following this procedure:
1. Select the receiver output to learn:
2. Operate whichever input on the encoder you want to learn to the selected decoder output.
3. The Learn LED will then illuminate, within 10secs, operate the same encoder input again.
4. The Learn LED will then flash to indicate learning is complete.
Erase Mode (As application circuit): is achieved by pulling this input to GND for >8 seconds.
This causes the internal EEPROM to be erased of all pre-learnt RF803E-ALPHA encoders.
During Erase the Learn LED will activate, it will extinguish when erase is complete.
Mom / Latch
This high impedance input is used to set the digital outputs to momentary or latched actions.
Pull up / Pull down required.
Continuous Transmit or State change transmit
The RF803E-ALPHA can be set to transmit only on a state change – when it will send 3 data
packets each time it receives a state change on its inputs – or to transmit continuously while an
input is active. This enables the RF803E-ALPHA to be used in applications with momentary
inputs or latching inputs.
NOTE: TRX acknowledge can only be sent AFTER a transmission. Therefore when using TRX
mode and Continuous Transmit mode an acknowledge is send when the transmission has
finished. When using TRX mode and State Change Transmit the acknowledgement is sent
500ms after the first packet is received by the RF803D-ALPHA.
v
v
‘
‘
0
0
9
9
a. Briefly operate the receiver Learn switch (SW1) once
b. The Learn LED will flash once to indicate that output 1 is selected
c. After the LED stops flashing, press the Learn switch again to select the next output
d. Repeat step c until the required output is selected.
channel
LKIN Status
HIGH
LOW
©
©
2
2
0
0
T
T
0
0
e
8
8
e
l
l
R
R
0
0
F
F
1
1
2
2
S
S
7
7
o
o
3
3
l
l
u
u
8
8
t
t
9
9
i
i
o
o
8
8
n
n
0
0
s
s
0
0
L
0
0
L
t
t
d
d
F
F
,
,
a
a
w
w
x
x
w
w
0
0
1
w
w
1
2
2
.
.
r
r
7
7
f
f
s
3
s
3
o
o
4
4
l
l
u
u
8
8
t
t
0
0
i
i
Digital Outputs
Function
Momentary
Latching
o
o
6
6
n
n
6
6
s
s
1
1
.
.
c
c
o
o
.
.
u
u
k
k
P
P
a
a
g
g
e
e
1
1
0
0
RF803-ALPHA