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USB-1616FS User's Guide Functional Details

Each screw terminal is identified with a label on the board and on the underside of the enclosure lid. Refer to

the table below for the signal name associated with each board label.

Board labels and associated signal names

Board label

Signal name

Board label

Signal name

DIO

DIO 0

GND

GND 0

DIO 1

GND 1

DIO 2

GND 2

DIO 3

GND 3

DIO 4

GND 4

DIO 5

GND 5

DIO 6

GND 6

DIO 7

GND 7

TRIG IN

CTR

SYNC

CHANNEL IN

CH 0

AGND

AGND 0

CH 1

AGND 1

CH 2

AGND 2

CH 3

AGND 3

CH 3

AGND 4

CH 4

AGND 5

CH 5

AGND 6

CH 6

AGND 7

CH 8

AGND 8

CH 9

AGND 9

CH 10

AGND 10

CH 11

AGND 11

CH 12

AGND 12

CH 13

AGND 13

CH 14

AGND 14

CH 15

AGND 15

Signal connections

Analog inputs

You can connect up to 16 analog input connections (CH0 IN through CH15 IN) to the screw terminals labeled

Channel IN 0-15. We recommend that you connect unused analog input terminals to ground terminals during

operation. For example, if you are not using CH7 IN, connect this terminal to AGND 7.

The analog input channels are configured for single-ended input mode. Each analog signal is referenced to

signal ground (AGND), and requires two wires:

 Connect the wire carrying the signal to be measured to CH# IN.

 Connect the second wire to AGND.

The input voltage ranges are ±10 V, ±5 V, ±2.0 V, and ±1.0 V.

For more information on analog signal connections

For more information on single-ended inputs, refer to the Guide to Signal Connections (this document is

available on our web site at www.mccdaq.com/signals/signals.pdf).

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