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UPort 1100 Series User’s Manual Introduction
1-4
LED Indicators
Active
RxD
TxD
1110
USB-to-Serial Adaptor
Active
RxD
TxD
1130
USB-to-Serial Adaptor
Active
RxD
TxD
1150
USB-to-Serial Adaptor
RS-232/422/485
UPort 1110
UPort 1130
UPort 1150
Name Description
Active
This LED indicates normal operation. If the driver is installed correctly and
the adaptor is plugged into a functioning USB port, the Active LED will light
up and remain on. If the LED does not light up, there may be a problem with
the adaptor, the driver installation, or PC configuration.
TxD This LED blinks when the adaptor transmits data through its COM port.
RxD This LED blinks when the adaptor receives data through its COM port.