Ocean Optics NIR - Manual (Page 32)

B: Specifications
15-pin Accessory Connector Pinout
When facing the 9-pin RS-232 Serial Port connector on the NIR Spectrometer, the pins are numbered as:
15-pin Accessory Connector – Pin Definitions
Pin # Description
3 +5V DC
8
External Software
trigger pin
10 Ground
LED Information
The LED on the NIR Spectrometer has two states: Blinking and Solid. A blinking LED indicates that the
thermo-electric cooler (TEC) is not active. A solid LED indicates that the TEC is active, which means the
TEC is in the process of reaching (or has reached) the set temperature.
The LED indicator is present on Revision C (and higher) NIR Spectrometers. The last letter in your NIR
serial number (for example, NIRXXA001 for Revision A) represents the revision code of the
spectrometer.
The NIR Spectrometer is designed to keep the internal temperature within 0.1 °C of the set temperature.
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