3.2.2 I/O Connector Signal Description
Table 3.1: I/O Connector Signal Descriptions
Signal | Reference | Direction | Description |
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IDI<0~15> | GND | Input | Isolated digital input channels |
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INT<0,1> | INT_G | Input | Interrupt trigger sources. |
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INT<0,1>_ | - | - | Ground for interrupt pins. |
G |
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CNT<0,1> | GND | Input | Isolated input counters |
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IDO<0~15> | GND | Output | Isolated digital output channels |
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COM<0,1> | - | - | Common pins for connecting induc- |
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| tive loads of isolated output channels |
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GND | - | - | Ground |
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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 |
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On | Device ready for work |
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Off | Device not ready to work |
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Slow Blinking (5 times) | Device initialization |
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Fast Blinking | Device working |
(Depends on data transfer speed). |
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13 | Chapter3 |