User Manual

5.2 MULTIPURPOSE_IO (M_IO)
MULTIPURPOSE_IO (M_IO) is a configurable input or output channel accessible within the Interface Box
Jumper J4 connected to the MULTIPURPOSE_IO pin of the Interface Box. Detailed information on how
to configure this channel using the sensor TCP interface can be found in the API Guide. By default this
channel is disabled.
When this channel is configured as an OUTPUT, the
M_IO sends a pulse sequence that can be used for
time synchronization or event triggering outside the sensor. For a full description of output pulse trig-
gering options, refer to the Software User Manual for more information. This output is an opto-isolated
open collector circuit, relying on an externally provided pull-up resistor. This resistor is provided for a
typical 3.3V/5V application as part of the Interface Box circuitry.
Table5.2: MULTIPURPOSE_IO - OUTPUT Interface Requirements
Parameter Min Max
Pull Up Voltage 3.3 V 24 V
Sinking Current N/A 25 mA
When this channel is configured as an INPUT, the M_IO can accept a standard NMEA $GPRMC UART
message. These messages are a common way for GPS systems to share timestamp information in
UTC time format. More information on this packet structure and supported baud rates can be found
in the Time Synchronization section of the Software User Manual.
Table5.3: MULTIPURPOSE_IO - INPUT Interface Requirements
Parameter Min Voltage Max Voltage Min Driver Current
LOGIC LOW -30 V 2 V N/A
LOGIC HIGH 2.9 V 30 V 3mA @3.3V~5V, 5mA
at 24V and higher
Above are tested with 35m (200uH inductance) cable Interface Box connection at 115200 Baudrate.
6 OS2 CAD files
The most up-to-date CAD files of all our products can be found on our Lidar Product Details page.
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