OG_TB-CDP-TX-04S-RX-03AS_ver20e 3 Circuit Design, Inc.
OPERATION GUIDE
PIN DESCRIPTION
ID SETTING
IDs of transmitter and reciever need to be the same to establish communication. Use the 8-bit DIP
switches to set the board ID. Any number of transmitters can be paired to a single reciever or vice
versa. The ID switches works as follows:
1 = Sw ON, 0 = Sw OFF
Example: Set ID of both Tx and Rx to 10. This is value 1010:
Tx board: Sw[1 ~ 4] set to ON, OFF, ON, OFF and Sw[5 ~ 8] set to ON, OFF, ON, OFF
Rx board : Sw[1 ~ 4] set to ON, OFF, ON, OFF and Sw[5 ~ 8] set to ON, OFF, ON, OFF
Pin No.
Name
Description
1
SW 1
High (Vcc) = SW ON
2
SW 2
High (Vcc) = SW ON
3
SW 3
High (Vcc) = SW ON
4
SW 4
High (Vcc) = SW ON
5
VCC
Supply voltage
2.7
– 3V
6
GND
GND
Pin No.
Name
Description
1
OUT 1
Open collector
Low (ON)/Open (OFF)
2
OUT 2
Open collector
Low (ON)/Open (OFF)
3
OUT 3
Open collector
Low (ON)/Open (OFF)
4
OUT 4
Open collector
Low (ON)/Open (OFF)
5
MAIN
MAIN SW
ON (low)
6
GND
GND
7
VCC
Supply voltage
3
– 12V
ID value (0 ~ 16)
[Sw 1 ~ 4]
[Sw 5 ~ 8] (must be set the same as [Sw 1 ~ 4])
0
0000
0000
16
1111
1111
RX board
ID Dip SW
1 2 3 4 5 6
TX board
PIC
1 2 3 4 5 6 7
ID Dip SW
Main SW
