The telemetry input can be used to control the lamp and dim function from an external source.
By default, the telemetry inputs are wired together (CLOSED) for standard photocell controlled on/off operation. If required to be activated by an external source, connect as an appropriate volt-free or TTL input source using a dry contact.
Volt free input/dry contact:
Non polarity sensitive:
Orange = TTL +, Purple = TTL (GND)
0V = Light on, 3V = Light off
Short circuit = light on