2
Reference
Channels
Country
linkIT-434-16
16
USA
linkIT-434-24
24
USA
linkIT-868-16
16
Europe
linkIT-868-24
24
Europe
Green
On first power up
Red
When radio transmission is in progress
Blue
When the optional wireless/cloud service is connected
Hardware
LED status
Restart
Antenna
Prog-Tx
5V DC/1A
micro-USB
LED
RS232
Serial
interface
Comes with 2A, 5V micro-USB power supply
It is possible to install more than one LinkIT provided your Controller has the requisite number
of RS232 ports or a Remote RS232 - TCP/IP Convertor is used. No daisy chain possible.
USAGE
RJ9 PIN
DB9 PIN
5 Volt Power
1
NA
TXD
2
2
RXD
3
3
GND
4
5
RJ9 – DB9 connection
RJ9
male
connector
DB9
female
connector
rear view
4
1
6
2
7
3
8
4
9
5
3
2
1
Note: RS232 is transmitted via RJ9 Socket.
Warning: check for crossover of pins 2 & 3 depending on the equipment used.
5V Pin is optional and is provided to allow LinkIT to be powered via the RJ9 socket.
This is for advanced installation only and should not be used alongside the 5V micro USB input.
