Contec COM-1PD(USB)H - 5 About Hardware; LED Display

5. About Hardware
COM-1PD(USB)H
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5. About Hardware
LED display
Table 5.1. Function list
LED name LED display content
ON … Power ON POWER (green)
OFF … Power OFF
Blinking … Receiving data * RxD (yellow)
OFF … Not receiving data or not connected
Blinking … Transmitting data * TxD (yellow)
OFF … Not transmitting data or not connected
TxD
RxD
POWER
Figure 5.1. LED display
*
If you forget the COM port number of this product, perform communication via specific COM ports and check the
LEDs on the product to identify its COM port number.