Measurement-computing USB-1024HLS Manuel d'utilisateur télécharger pdf (Page 11)

Chapter 3

Functional Details

External components

The USB-1024HLS has the following external components, as shown in Figure 3-1.

! USB connector

! LED

! Screw terminal banks (2)

USB

connector / cable

Screw terminal

Pins 21 to 40

Screw terminal

Pins 1 to 20

LED

Figure 3-1. USB-1024HLS external components

USB connector

The USB connector is on the right side of the USB-1024HLS housing. This connector provides +5 V power and

communication. The voltage output is system-dependent, and may be less than +5 V. No external power supply

is required.

LED

The LED on the front of the housing indicates the communication status of the USB-1024HLS. It uses up to 5

mA of current and cannot be disabled. explains the function of the USB-1024HLS LED. Table 3-1

Table 3-1 LED illumination

LED Illumination Indication

Steady green The USB-1024HLS is connected to a computer or external USB hub.

Blinks continuously Data is being transferred.

Blinks three times Initial communication is established between the USB-1024HLS and the computer.

3-1

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Measurement-computing USB-1024HLS Manuel d'utilisateur Page 11