Measurement-computing USB-1608HS Manual do Utilizador descarregar pdf (Página 15)

USB-1608HS User's Guide Functional Details

Power connector

Connect the external power adapter (MCC part number PS-5V2AEPS) to the power connector on the rear of the

USB-1608HS.

Figure 5. USB-1608HS external components – rear view

Analog input terminals (CH0_L - CH7_H)

You can connect up to eight analog input connections to these screw terminal pins:

 CH0_H and CH0_L

 CH1_H and CH1_L

 CH2_H and CH2_L

 CH3_H and CH3_L

 CH4_L and CH4_H

 CH5_L and CH5_H

 CH6_L and CH6_H

 CH7_L and CH7_H

Refer to Figure 4 on page 14 for the location of these pins.

Input configuration

Analog signals are referenced to analog ground (AGND). Single-ended mode requires two wires:

 The wire carrying the signal to be measured connects to CHx_H.

 The second wire connects to AGND.

Differential mode requires three wires:

 The wire carrying the positive portion of the differential signal to be measured connects to CHx_H.

 The wire carrying the negative portion of the differential signal to be measured connects to CHx_L.

 The analog ground reference wire connects to AGND.

The input voltage ranges are ±10 V, ±5 V, ±2.0 V, ±1.0 V. The following image illustrates a typical

single-ended measurement connection.

USB connector

Power connector

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