Ocean Optics Torus Operating Instructions - Manual (Page 27)

C: Specifications
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Accessory Connector Pinout Diagram
When facing the 30-pin Accessory Connector on the front of the vertical wall of the Torus, pin numbering
is as follows:
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
30-Pin Accessory Connector Pinout Diagram
Accessory Connector – Pin Definitions and Descriptions
The following table contains information regarding the function of each pin in the Torus’s 30-Pin
Accessory Connector:
Pin # Function Input/Output Description
1 RS232 Rx Input RS232 receive signal – Communicates with a computer over
DB9 Pin 1
2 RS232 Tx Output RS232 transmit signal – Communicates with a computer
over DB9 Pin 2
3 GPIO (2) Input/Output Reserved
4 V5-SW N/A
5 Ground Input/Output Ground
6 I2C SL Input/Output I2C clock signal for communication to other I2C peripherals
7 GPIO (0) Input/Output Base clock
8 I2C SDA Input/Output
9 GPIO (1) Input/Output Master clock
10 Ext. Trigger In Input TTL input trigger signal
11 GPIO (3) Input/Output Integration clock
12 VCC, VUSB or
5Vin Input or Output Input power pin for Torus – When operating via USB, this pin
can power other peripherals – Ensure that peripherals
comply with USB specifications
13 MOSI Output The SPI Master Out Slave In (MOSI) signal for
communications to other SPI peripherals
14 VCC, VUSB or
5Vin Input or Output Input power pin for Torus – When operating via USB, this pin can
power other peripherals – Ensure that peripherals comply with USB
specifications