Decision Computer International SMARTLAB Manual de instrucciones - Página 5

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Operations Manual

3. External Power Input (TB1)

+5V

SGND

. .

The power of mini USB 4 channels relay output / photo isolator

input card is supplied from pin 1 and pin 2 of TB1, please input

external DC +5V power from pin 1 of TB1. Be careful to input

DC +5V power.

4. Photo Isolator Input Voltage Range Selection (JP5 to JP8)

. .

JP5 to JP8 are used to select input voltage range. The JP5 is

used to select photo couple input channel 0, and JP6 is used to

select photo couple input channel 1 ... etc. When short the

jumper, the input voltage range from 0 to 20V, and the active

voltage form 6 to 20V. When open the jumper, the input

voltage range from 0 to 30V, and the active voltage from 18 to

30V.

Jumper Input Voltage

Inactive Voltage

open

0 to 30V

0 to 16.5V

short

0 to 20V

0 to 4.5V

DECISION Computer International

USB Photo Relay Card

Active Voltage

18 to 30V

6 to 20V

Operations Manual

2.3 USB Connector

1. USB Connector

The USB connector is connected to computer USB port by

using USB cable.

2.4 LED Indicators

1. LED1

The LED1 is an indicator to show the power is supplied

normally.

2. LED2

The LED2 is an indicator to show the USB link status. When it

lights, it means USB connection works normally, otherwise it

is fail.

3. LED3

The LED3 is an indicator to warning the abnormal status of

mini USB 4 channels relay output / 4 channels photo couple

input card.

4. LED4 to LED11

The LED4 to LED11 are used to shown the working status of

relay output and photo couple input.

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DECISION Computer International

USB Photo Relay Card