Measurement-computing USB-1608HS Manuel d'utilisateur télécharger pdf (Page 14)

USB-1608HS User's Guide Functional Details

USB active LED (ACT)

The ACT LED indicates the communication status of the USB-1608HS. The table below defines the function of

the ACT LED.

LED Illumination

Indication

Steady green

The USB-1608HS is connected to a computer or external USB hub.

Blinks continuously

Data is being transferred.

Power LED (PWR)

The PWR LED lights up when the USB-1608HS is receiving +5 V of power from the AC power adapter.

Main connector and pin out

Connector type

Screw terminal

Wire gauge range

16 AWG to 30 AWG

The USB-1608HS has one row of screw terminals that provide the following connections:.

 16 analog input connections (CH0_L to CH7_L and CH0_H to CH7_H) covering eight analog input

channels.

 10 analog ground connections (AGND)

 Eight digital input connections (DI0 to DI7)

 Eight digital output connections (DO0 to D07)

 One external trigger source (TRIG_IN)

 Two SYNC terminals for external clocking and multi-unit synchronization (SYNC_IN and SYNC_OUT)

 One external event counter connection (CTR)

 One voltage connection (+5 V EXT)

 Three digital ground connections (GND)

Signals are identified in Figure 4.

Figure 4. USB-1608HS screw terminal functions

USB connector

The USB connector is on the rear of the USB-1608HS. This connector provides communication.

1 GND

2 DI0

3 DI1

4 DI2

5 DI3

6 DI4

7 DI5

8 DI6

9 DI7

10 GND

11 DO0

12 DO1

13 DO2

14 DO3

15 D04

16 DO5

17 DO6

18 DO7

19 GND

20 SYNC_IN

21 SYNC_OUT

22 +5V EXT

23 CTR

24 TRIG_IN

25 N/C

26 N/C

27 AGND

28 N/C

29 N/C

30 AGND

31 CH0_L

32 CH0_H

33 AGND

34 CH1_L

35 CH1_H

36 AGND

37 CH2_L

38 CH2_H

39 AGND

40 CH3_L

41 CH3_H

42 AGND

43 CH4_L

44 CH4_H

45 AGND

46 CH5_L

47 CH5_H

48 AGND

49 CH6_

50 CH6_H

51 AGND

52 CH7_L

53 CH7_H

54 AGND

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 30 31

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Measurement-computing USB-1608HS Manuel d'utilisateur Page 14

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