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Chapter  2 

Installing the USB-1608GX-2AO 

Unpacking 

As with any electronic device, you should take care while handling to avoid damage from static 

electricity. Before removing the device from its packaging, ground yourself using a wrist strap or by simply 

touching the computer chassis or other grounded object to eliminate any stored static charge. 
Contact us immediately if any components are missing or damaged. 

Installing the software 

Refer to the MCC DAQ Quick Start and the USB-1608GX-2AO product page on our website for information 

about the software supported by the USB-1608GX-2AO. 

Install the software before you install your device 

The driver needed to run the USB-1608GX-2AO is installed with the software. Therefore, you need to install 

the software package you plan to use before you install the hardware. 

Installing the hardware 

To connect a USB-1608GX-2AO to your system, turn on your computer and connect the USB cable to an 

available USB port on the computer or to an external USB hub connected to the computer. Connect the other 

end of the USB cable to the USB connector on the device. No external power is required. 
When you connect the device for the first time, a 

Found New Hardware

 dialog opens when the operating 

system detects the device. The dialog closes after the device is installed. 
A green 

Status

 LED indicates the device status. When the LED is on, the device is powered and ready for 

operation. When the LED is off, the device is not powered or did not initialize. Figure 3 on page 9 shows the 

location of the 

Status

 LED. If the 

Status

 LED is on but then turns off, the computer has lost communication 

with the device. To restore communication, disconnect the USB cable from the computer and then reconnect it. 

This should restore communication, and the LED should turn on. 

Caution!

 

Do not disconnect any device from the USB bus while the computer is communicating with  

the USB-1608GX-2AO, or you may lose data and/or your ability to communicate with the device. 

Calibrating 

Self-calibration 

The USB-1608GX-2AO supports self-calibration with InstaCal. Calibrate the device whenever the ambient 

temperature changes by more than ±10 °C from the last self-calibration. 

Factory calibration 

The Measurement Computing Manufacturing Test department performs the initial factory calibration. Contact 

Measurement Computing for details about how to return your device and have it calibrated to the factory 

specifications. 

Firmware updates 

Your DAQ device contains firmware that can be updated in the field if required. Firmware is available for 

download at 

www.mccdaq.com/firmware.aspx

.We recommend that you check this page periodically to see if an 

update to your device firmware is available. 

Summary of Contents for USB-1608GX-AO

Page 1: ...USB 1608GX 2AO Multifunction DAQ Device User s Guide January 2019 Rev 2 Measurement Computing...

Page 2: ...any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation d...

Page 3: ...apter 3 Functional Details 8 Analog input modes 8 Software paced 8 Hardware paced 8 Burst mode 8 External components 9 USB connector 9 LEDs 9 Screw terminals 9 Signal connections 11 Analog input 11 An...

Page 4: ...2AO User s Guide 4 Counter 20 Timer 21 Memory 21 Power 21 USB 21 Environmental 22 Mechanical 22 Screw terminal connector 22 Differential mode pinout 22 Single ended mode pinout 23 EU Declaration of Co...

Page 5: ...e names of objects on a screen such as buttons text boxes and check boxes italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase Where to find...

Page 6: ...terminals for field wiring connections The USB 1608GX 2AO is powered by the 5 volt USB supply from your computer no external power is required A USB cable is shipped with the device The USB 1608GX 2A...

Page 7: ...he device The dialog closes after the device is installed A green Status LED indicates the device status When the LED is on the device is powered and ready for operation When the LED is off the device...

Page 8: ...to the computer memory buffer You start a continuous scan with either a software command or with an external hardware trigger event The maximum sampling rate in hardware paced mode from one to 16 cha...

Page 9: ...ter The Activity LED blinks when data is transferred and is off otherwise Figure 3 shows the location of each LED Screw terminals The screw terminals provide the following connections 16 SE CH0 to CH1...

Page 10: ...USB 1608GX 2AO User s Guide Functional Details 10 Figure 4 SE mode pinout Figure 5 DIFF mode pinout...

Page 11: ...voltage source When connecting DIFF voltage inputs to a floating voltage source make sure the DIFF input channel has a DC return path to ground To create this path connect a resistor from each low cha...

Page 12: ...of 500 kS s The output range is fixed at 10 V The outputs default to 0 V when the host computer is shut down or suspended or when a reset command is issued to the device External clock I O The device...

Page 13: ...pull up or pull down The jumper is configured by default for pull down Figure 8 shows the location of the jumper on the board Figure 8 W1 jumper location Figure 9 shows the jumper configured for pull...

Page 14: ...z The timer output parameters are software selectable Figure 10 shows the timer output schematic Figure 10 Timer output schematic Power output The 5V terminal can output up to 10 mA maximum You can us...

Page 15: ...USB 1608GX 2AO User s Guide Functional Details 15 Mechanical drawings Figure 11 USB 1608GX 2AO circuit board top and enclosure dimensions...

Page 16: ...signal 3 dB 870 kHz Input capacitance 60 pf Max working voltage signal common mode 10V range 10 2 V max relative to AGND 5V range 10 2 V max relative to AGND 2V range 9 5 V max relative to AGND 1V ra...

Page 17: ...connected to AGND at the input terminal block and 32 000 samples are acquired at the maximum rate available at each setting Table 3 Noise performance specifications Range Counts LSBrms 10 V 6 0 91 5 V...

Page 18: ...urce TRIG see External trigger on page 19 Sample clock source Internal D A clock or external D A clock AOCKI pin Output update rate 500 kHz number of channels in scan Settling time To rated accuracy 1...

Page 19: ...ion The port has 47 k resistors configurable as pull ups or pull downs default via internal jumper W1 Digital I O transfer rate system paced 33 to 8000 port reads writes or single bit reads writes per...

Page 20: ...is 0 4 V to 1 2 V Input high voltage 2 2 V min 5 5 V absolute max Input low voltage 1 5 V max 0 5 V absolute min 0 V recommended min Output high voltage 4 4 V min IOH 50 A 3 76 V min IOH 2 5 mA Output...

Page 21: ...2 kS analog output Non volatile memory 32 KB 28 KB firmware storage 4 KB calibration user data Power Table 16 Power specifications Parameter Condition Specification Supply current Note 3 Quiescent cu...

Page 22: ...L AI channel 6 LO 5 CH1L AI channel 1 LO 32 CH6H AI channel 6 HI 6 AGND Analog ground 33 AGND Analog ground 7 CH2H AI channel 2 HI 34 CH5L AI channel 5 LO 8 CH2L AI channel 2 LO 35 CH5H AI channel 5 H...

Page 23: ...I channel 12 11 CH11 AI channel 11 38 CH4 AI channel 4 12 AGND Analog ground 39 AGND Analog ground 13 AOUT0 AO channel 0 40 AGND Analog ground 14 AGND Analog ground 41 AGND Analog ground 15 AOUT1 AO c...

Page 24: ...European Directives Electromagnetic Compatibility EMC Directive 2014 30 EU Low Voltage Directive 2014 35 EU RoHS Directive 2011 65 EU Conformity is assessed in accordance to the following standards E...

Page 25: ...ion NI Hungary Kft 10 Commerce Way H 4031 Debrecen H tar t 1 A Hungary Norton Massachusetts 02766 Phone 36 52 515400 508 946 5100 Fax 36 52 515414 Fax 508 946 9500 http hungary ni com debrecen E mail...

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