Ocean Optics Breakout Box - Manual (Page 5)

HR4-BREAKOUT Installation and Operation Instructions
Table 1: 30-Pin Connector Pinout Information
Pin # Function Input/Output Description
1 RS232 Rx Input
RS232 receive signal – Communicates with a PC over DB9
Pin 3
2 RS232 Tx Output
RS232 transmit signal – Communicates with a PC over DB9
Pin 2
3 GPIO (2) Input/Output
General purpose software-programmable, digital
input/output (channel number)
4 V5_SW Output Regulated 5 Volt power pin – Supplies 50 mA (maximum)
5 Ground Input/Output Ground
6 I 2 C SCL Input/Output I 2 C clock signal for communication to other I 2 C peripherals
7 GPIO (0) Input/Output
General purpose software-programmable, digital
input/output (channel number)
8 I 2 C SDA Input/Output I 2 C data signal for communication to other I 2 C peripherals
9 GPIO (1) Input/Output
General purpose software-programmable, digital
input/output (channel number)
10
Ext. Trigger
In
Input
TTL input trigger signal – See External Triggering Options
document for more information
11 GPIO (3) Input/Output
General purpose software-programmable, digital
input/output (channel number)
12 V
USB
Input or
Output
Input power pin for spectrometer – When operating via USB,
this pin can power other peripherals – Ensure that
peripherals comply with USB specifications
13 SPI Data Out Output
SPI Master Out Slave In (MOSI) signal for communication to
other SPI peripherals
14 V
USB
Input or
Output
Input power pin for spectrometer – When operating via USB,
this pin can power other peripherals – Ensure that
peripherals comply with USB specifications
Table 1: 30-Pin Connector Pinout Information (Continued)
Pin # Function Input/Output Description
15 SPI Data In Input
SPI Master In Slave Out (MISO) signal for communication to
other SPI peripherals
16 GPIO (4) Input /Output
General purpose software-programmable, digital
input/output (channel number)
17 Single Strobe Output
TTL output pulse used as a strobe signal – Has a
programmable delay relative to the beginning of the
spectrometer integration period
18 GPIO (5) Input/Output
General purpose software-programmable, digital
input/output (channel number)
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