Ocean Optics USB2000+ Install - Manual (Page 26)

B: Specifications
20 270-00000-000-02-201107
Accessory Connector Pinout
The USB2000+ features a 22-pin Accessory Connector, located on the front of the unit as shown:
Location of USB2000+ Accessory Connector
Accessory Connector Pinout Diagram
When facing the 22-pin Accessory Connector on the front of the vertical wall of the USB2000+, pin
numbering is as follows:
20 18 16 14 12 10 8 6 4 2 A2
19 17 15 13 11 9 7 5 3 1 A1
22-Pin Accessory Connector Pinout Diagram
Accessory Connector – Pin Definitions and Descriptions
The following table contains information regarding the function of each pin in the USB2000+’s 22-Pin
Accessory Connector:
Pin # Function Input/Output Description
A1 SPI_CLK Output The SPI Clock signal for communications to other SPI peripherals
A2 SPICS_OUT Output
The SPI Chip/Device Select signal for communications to other
SPI peripherals
1
V
CC
, V
USB
, or Input or
Input power pin for USB2000+ – When operating via USB, this pin
can power other peripherals – Ensure that peripherals comply with