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Ocean Optics QE Pro Install User Manual

Page 32

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B: Specifications

26

891-00000-000-02-201401

Pin # Function

Input/Output

Description

5

Ground

Input/Output

Ground

6

I2C SCL

Input/Output

I2C clock signal for communication to other I2C peripherals

7

GPIO (0)

Input/Output

General Purpose Input Output

8

I2C SDA

Input/Output

I2C data signal for communication to other I2C peripherals

9

GPIO (1)

Input/Output

General Purpose Input Output

10

Ext. Trigger
In

Input

CMOS input trigger tolerant from 3-5V

11

GPIO (3)

Input/Output

General Purpose Input Output

12

VOUT

Output

Output power pin for QE Pro

13

SPI_MOSI

Output

SPI Master Out Slave In (MOSI) signal for communication to
other SPI peripherals

14

VOUT

Output

Output power pin for QE Pro

15

SPI MISO

Input

SPI Master In Slave Out (MISO) signal for communication to
the other SPI peripherals

16

GPIO (4)*

Input /Output

General Purpose Input Output

17

Single Strobe Output

CMOS (3.3V) 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 Input Output

19

SPI Clock

Output

SPI clock signal for communication to other SPI peripherals

20

Continuous
Strobe

Output

CMOS output signal used to pulse a strobe – Divided down
from the master clock signal

21

SPI CS

Output

External SPI chip select (active low)

22

GPIO (6)

Input/Output

General Purpose Input Output

23

RESET

Input

This pin is pulled up to 5V by a 10K internal resistor. Pull
down to ground to reset. Leave open for normal operation.

24

RS-232 CTS

Output

RS-232 Clear to Send control logic signal – used to enable
or suspend host transmission to the QE Pro

25

Lamp Enable

Output

CMOS signal driven Active HIGH when the Lamp Enable