Two LEDs indicate the current status of the connection.
DS821
Status LEDs:
Yellow
Green
Status LEDs:
Yellow
Green
Status LEDs:
Yellow
Green
DS821 - 54 mmm
DS821 - 34 mmm
DS821 - 34 mmm
Version 2.0
Yellow LED A lit yellow LED indicates that the connection between
the host PC and the expansion box is ready for communication.
Green LED A lit green LED indicates that data is being sent or
received.
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Connecting an Expansion Box to the Host PC
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64
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DS1103 Hardware Installation and Configuration November 2014