2
Command Codes via the RJ12 Connector
The codes in the table below are the codes that will be sent to the TileVision via the RJ12 connector.
The voltage levels that are accepted as an input on pin 2 of the RJ12 connector (command code from external
equipment to the TileVision®) are:
HIGH + 5 volts DC LOW 0 volts DC
Important
: When the input on pin 2 of the RJ12 connector is inactive/idle it must be held
HIGH
. If pin 2 of the RJ12
connector is held low, all subsequent command codes via the RJ12 connector and via the TileVision® IR receiver (sent
from the TileVision® IR remote control) will fail and the TileVision® will be non responsive.
Pin 5 of the RJ12 connector is DC ground.
The code sequence sent to the RJ12 connector is a DEMODULATED NEC protocol format.
First Start Pulse LOW 9.0 ms.
Second Start Pulse HIGH 4.5 ms.
Logic 1 = LOW 560 µs HIGH 1.69 ms.
Logic 0 = LOW 560 µs HIGH 560 µs.
Stop Pulse LOW 560 µs.
TileVision® Interface Connections
RJ12 Command Code Format
RJ12 C
ommand C
ode F
orma
t
Logic 1 – 2.25 ms
Inactive/idle
HIGH
Inactive/idle
HIGH
Logic 0 – 1.12 ms
Address
0 2 F D
Code
E A 1 5
Stop 560 µs
9 ms
4.5 ms
560 µs
