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ACCES I/O Products, Inc. 

MADE IN THE USA 

USB-AI16-2A

 

manual revision A1d

 

Control is possible either with custom application software, with 
off-the-shelf applications (such as LabVIEW), or with provided 
samples and utilities, including samples in Windows. 

The analog inputs are connected using industry standard BNC 
connectors for assured signal integrity. The 8 digital I/O signals are 
connected via a right-angle IDC 16-pin (0.1” spacing) boxed and 
keyed header. 

Refer to Chapter 4 for additional information regarding user-
selectable option settings for this device including analog input 
range, polarity, and digital I/O bias selection. 

C

HAPTER 

3:

 

H

ARDWARE

 

This unit is PC/104 sized and mounting-compatible (3.55” x 3.775”) 
with a standard steel powder-coated enclosure (4” x 4.08” x 1.05”). 
This device is available RoHS compliant, and supports Industrial 
temperature environments (-40°C to 85°C operating, -65°C to 
150°C storage) as an option. Additional options include 3.3V 
compatible digital I/O and screw-terminal connectivity for positive 
external power retention (replaces the DC input jack).  

A green LED provides Power and Activity status. A solid green light 
means the firmware has been successfully loaded and executed; a 
flickering light indicates activity. 

 INCLUDED IN YOUR PACKAGE  

USB module (installed in labeled enclosure) 
6’ USB cable 

Contact the factory for information regarding additional 
accessories, options, and specials that may be available to best fit 
your specific application requirements. 

 

 

C

HAPTER 

4:

 

C

ONFIGURATION 

S

ETTINGS

 

This product has several physical settings you should configure before connecting it to the computer. You can run the provided Windows 
Settings Program for a visual walk-through while configuring the settings, or refer to the image above and instructions below.  You will need a 
Philips screw-driver to open the enclosure. Please follow ESD precautions while configuring settings. 

 

Digital I/O:  

o

 

For each 4-bit port select between Pull-Up (to Vcc* via 10kΩ) or Pull-down (to GND via 10kΩ). You may also configure a DIO 
port for neither pull-up nor pull-down (unbiased) by removing the option selection jumper entirely. 

 

* Vcc is 5VDC  (or 3.3VDC if the –LV option was specified) 

 

Power Input: 

o

 

Choose to use power as provided by the USB cable, or to use external power (as provided to the DC Jack or screw terminals 
(-ST option)). 

This manual applies to the following model: 

USB-AI16-2A  Two 16-bit 1MHz Analog Inputs on USB 

Factory Options include: 

-OEM  Board only, without enclosure, features PC/104 module size and 

mounting compatibility 

-T  Extended Temperature (-40°C to 85°C) 

-PR  +5VDC regulated AC/DC supply and onboard DC-power input jack 

-ST  Screw terminals installed for DC-power input (no jack, no wall-wart) 

-LV  Re5VDC digital logic with +3.3V compatible I/O 

Optional available accessories include: 

UTBK-16  Direct-connect 16-pin Screw Terminal board 

CAB-BNC-6  Standard 6-foot co-axial cable, male BNC connectors 

CAB-BNC-CLIP  3-foot co-axial BNC to mini-grabber test clip cable 

MP104-DIN  DIN-rail mounting kit  

Software CD  ACCES Master Software CD 

Summary of Contents for USB-AI16-2A

Page 1: ...www acces io 10623 Roselle Street 800 326 1649 http acces io USB AI16 2A San Diego CA 92121 1506 USA contactus accesio com MADE IN THE USA DUAL CHANNEL 16 BIT 1 MHZ SIMULTANEOUS ANALOG DIGITAL INPUT BOARD HARDWARE MANUAL MODEL USB AI16 2A ...

Page 2: ...puts Per channel software selectable ranges of 0 1V 0 2V 0 5V 0 10V 1V 2V 5V 10V Eight digital I O s four inputs four high current outputs All 8 DIO lines buffered with Sink 32mA Source 32mA current capabilities Jumper selectable 10k ohm Pull up Pull down resistors on DIO lines Standard 16 pin IDC connector for Digital I O lines BNC connectors for Analog Inputs PC 104 module size and mounting comp...

Page 3: ...ay be available to best fit your specific application requirements CHAPTER 4 CONFIGURATION SETTINGS This product has several physical settings you should configure before connecting it to the computer You can run the provided Windows Settings Program for a visual walk through while configuring the settings or refer to the image above and instructions below You will need a Philips screw driver to o...

Page 4: ...ured for pull downs so external devices don t activate while the computer is booting All pull up pull down resistors for the Digital Inputs and Outputs are 10kΩ The GATE signal input is pulled up active high and allows conversions to occur following software command Grounding this input will disable A D conversions The FIFO FULL signal is active low indicating the data FIFO is almost full The RUNN...

Page 5: ...ry pass data as pointer to Acquire function s then data n ADCH0 would refer to the nth conversion of CH0 data n ADCH1 refers to the nth conversion of CH1 data n dits status is the status indicator bit data n dits digital is the four digital input bits data n dits Timestamp holds the 27 bit µsecond timestamp Our drivers and DLLs usually shield you from needing to know these details but for advanced...

Page 6: ...l Outputs High output Voltage Low output Voltage Sink Current Source Current 5V Logic 3 8V 0 55V 32mA 32mA High output Voltage Low output Voltage Sink Current Source Current 3 3V Logic 2 4V 0 55V 24mA 24mA Digital Inputs High input Voltage Low input Voltage 5V Logic 3 5V 2uA 1 5V 2uA High input Voltage Low input Voltage 3 3V Logic 2V 2uA 0 8V 2uA Environmental Operating temperature Commercial Stan...

Page 7: ...omestic site freight prepaid and invoiced COVERAGE FIRST THREE YEARS Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment FOLLOWING YEARS Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manu...

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