Chapter 1 CoE Drive Overview ASDA A2-E
Revision April, 2015 1-5
Link Activity (L/A) LED
The L/A LED indicator shows the physical link status and the link activity.
Indicator state Slave State
Off No link
Blinking Link and activity
On Link without activity
No link: The link has not established yet.
Link and activity: The data is exchanging with its partners.
Link without activity: The link is established but no data is exchanging now.