3.2.2 I/O Connector Signal Description

Table 3.1: I/O Connector Signal Description

Signal Name

Description

 

 

NO<0~7>

Normally Open pin of relay output

 

 

COM<0~7>

Common pin of relay output

 

 

NC<0~7>

Normally Close pin of relay output

 

 

IDInA <n=0~7>

Isolated digital input A

 

 

IDInB <n=0~7>

Isolated digital input B

 

 

3.2.3 LED Indicator Status Description

The USB Module is equipped with a LED indicator to show the current status of the device. When you plug the USB device into the USB port, the LED indicator will blink five times and then stay lit to indicate that it is on. Please refer to the following table for detailed LED indicator status information.

Table 3.2: LED Indicator Status Description

LED Status

Description

 

 

ON

Device ready for work

 

 

Off

Device not ready to work

 

 

Slow Blinking (5 times)

Device Initialization

 

 

Fast Blinking

Device working

(Depends on data transfer speed).

 

 

 

USB-4761 User Manual

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Advantech USB-4761 user manual 2 I/O Connector Signal Description, LED Indicator Status Description