laing-modbus

Simple python gui to control Laing desk motor controllers via Modbus. Documentation can be found in /Resources

Hardware

The RJ12 connector on the LTC series has the following pinout:

1. +5V Output
2. RS485 A
3. RS485 B
4. +5V Input
5. Analog control panel
6. Ground


Analog control

Up/Down can be controlled by changing the resistance between pin 5 and 6. The following resistances should be applied:

• Idle: 22k $\Omega$
• UP: 11k $\Omega$
• Down: 3.3k $\Omega$