LED state Stacking condition Result & action
Malfunction,
Contact your
vendor
For all ALH-616ds
,both standalone
and stacking
condition
Both Master And
Slave Led lit on
None or Master and
Slave LED lit on
For all ALH-616ds
,both standalone
and stacking
condition
Malfunction,
Contact your
vendor
it is ok
ALH-616ds is
standalone
only Master LED lit
on
the uppermost hub
in the ALH-616ds
Check, Please check
if the stacking cable is
properly connected
it is ok
the lower hubs in the
ALH-616ds stack
ALH-616ds is
standalone
Malfunction Contact
your vendor
Malfunction Contact
your vendor
it is ok
The lower hubs in the
ALH-616ds stack
only Slave LED lit on The uppermost hub in
the ALH-616ds stack