The TL-Rx-315 Circular DIN connector Pin assignments is as follows:
Pin 1 (green wire) is TX of RS-232. (5.0v, TTL)
Pin 2 (white wire) is RX of RS-232. (5.0v, TTL)
Pin 3 (black wire) is ground
Pin 4 (red wire) is for 5.0v power supply
The RS 232 Signal Output Sequence:
When the TL-Rx-315 (Rx) receives valid signal from a transmitter it will send 6 bytes of data to the RS-232 port.
The first three bytes are 3 ASCII characters “STR”, the fourth byte is the low byte of the address of the transmitter,
the fifth byte is the high byte of the address of the transmitter, and the sixth byte is Button Pressed information (see
Table 1).
After sending 6 bytes data to RS-232 port, the Rx will wait for an answer. If the answer is ASCII character 'K', the
Rx will cease sending data to RS-232 port. If the answer is ASCII character 'e', the module will send the same data
to RS-232 port again. If no answer occurs during 10 ms, the module will repeat sending the same data to RS-232
port.
Table1. Button pressed Information:
BIT digitButton pressed
(The sixth byte)
00000001
D0
00000010
D1
00000100
D2
00001000
D3
00010000
D4
00100000
D5
01000000
D6
10000000
D7
D6
D4
D2
D0
D7
D5
D2
D1
CMD-HHLR-315
Button Assignments
Circular DIN Connector
3
1
2
4
Appendix A
TL-Rx-315 Serial Output Connector and RS-232 Output Sequence
Eight-Button Transmitter Keypad Output
RF Wireless Receiver
Model TL-Rx-315
TL-Rx-315 User’s Manual p.6
