3.3 OperatingTemperatures
Thermal requirements specific to Rev 05 are listed below. The sensor has three operating states in
order to manage high temperatures: Active, Shot Limiting, or Inactive. In the standard Active state
the sensor will perform totherangeand precision specifications of the datasheet. When the sensor
reachesacertaintemperature(seetablebelowforreference),itentersShotLimitingstateandissues
analert. InShotLimitingstate,thesensorreducespowertothelasersinordertoreducethethermal
load. While in this state, sensor range and precision may degrade by up to 20%. When the sensor
reaches the maximum operating temperature specified below, the sensor may become Inactive and
shutoff.
Pleasecontactsupport@ouster.iowithyoursensor serialnumbertofind outyoursensorrevision.
Table 3.1: Maximumthermal performanceforRev05 OS2Sensor
Convective Air Temp with Radial
Heatsinkand StandardBase
Maxtempbeforeshot limiting 55ºC
Tempthatshotlimitingsaturated(sensormayturn
offabovethis temperature)
61ºC
4 ElectricalInterface
4.1 PowerSupplyandOperatingVoltage
The OS2 Rev 05 Sensors are meant to operateat 12V and 24V nominal input voltage. A low voltage
warningwillbetriggeredifthevoltageatthesensorconnectordropsbelow9.5V.Thesensorwillshut
downifthis input voltage dropsto9V. The maximum input voltageis 34V fortheOS2sensor. When
usedwithouttheprovidedinterfacebox,ensurethatthepowersupplyiscompliantwiththeoperating
voltagespecifiedaboveandallowstosupply atleast20 W.
4.2 ConnectionthroughtheInterfaceBox
The Interface Box that accompanies the OS2 is designed to allow the sensor to be operated for test
andevaluationpurposesinindoor environmentsonly. It canbe connectedtothesensor withacable
equipped with connectors on both ends. It allowsthe sensor to be powered up and provides access
to the sensor gigabit Ethernet Interface via a standard RJ45 connector. DC Power to the sensor is
providedtotheInterfaceBox bytheaccompanying24VDC powersupply.
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