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.