Manual

Issue 2, July 2021 Model 5401A User Guide
Page 32 Studio Technologies, Inc.
The SYNC LED will slowly flash orange if
the Model 5401A is serving as the PTPv1
Leader clock for the Dante network and its
failover mode is active. This would indicate
that the unit was specified to utilize the sync
input but is not able to do so. If the SYNC
LED is lit solid orange then the Model 5401A
is not acting as the PTPv1 Leader clock for
the Dante network and the failover mode is
active.
The SYNC LED lighting orange, whether
solid or flashing, would typically indicate an
error condition that should be resolved. The
SYNC LED will light solid green when the
Model 5401A is acting as the Follower clock.
In this case, the unit is using another Dante
device on the network to provide its timing
reference. This would not be a typical situa-
tion and might only occur while performing
system testing or serving in a backup role.
If Redundant or Redundant+Mgmt has been
selected then the SYNC LED will slowly
flash green if this specific Model 5401A
is serving as the PTPv1 Leader clock for
either the Dante primary or Dante second-
ary network. The SYNC LED will slowly flash
orange if this Model 5401A is serving as the
PTPv1 Leader clock for the Dante primary
network and its failover mode is active. This
would indicate that the unit was specified
to utilize the sync input but is not able to
do so.
If the SYNC LED is lit solid orange then the
Model 5401A is not acting as the PTPv1
Leader clock for the Dante primary network
and its failover mode is active. The SYNC
LED lighting orange, whether solid or flash-
ing, would typically indicate an error condi-
tion that should be resolved.
The SYNC LED will light solid green when
the Model 5401A is not acting as the PTPv1
Leader clock for the Dante primary and
Dante secondary networks, unless the unit
is locked to another Leader clock. In this
case, the unit is using another Dante device
to provide the timing reference for the Dante
primary network. This would not be a typical
situation and might only occur while perform-
ing system testing or serving in a backup
role.
The management webpages should be
utilized to observe the Model 5401A’s com-
plete sync status. Using the Home and Main
webpages, the status of the Dante primary
and Dante secondary interfaces, including
their support for PTPv1 and PTPv2, will be
displayed.
Note that it’s possible that up to 30 or 40
seconds may be required for the SYNC LED
to reach its final state after the Model 5401A
powers up or performs a reboot (restart).
Also, both the SYS and SYNC LEDs will
flash red whenever the Model 5401A’s net-
work configuration mode is changing. (This
would be performed using the Dante Con-
troller application.) After the revised network
configuration has been established the SYS
and SYNC LEDs will perform normally.
External Lock LED
An LED, labeled SYNC IN, is associated
with the status of the Model 5401A’s external
synchronization input. If the unit’s main clock
source has been configured to utilize an ex-
ternal source of sync then the LED will light
green if a valid source has been connected.
The SYNC IN LED will light red if a valid
signal has not been connected. This would
typically indicate an error condition that
should be investigated. If the Model 5401A’s
main clock source has not been selected to
use the external sync input then the SYNC
IN LED will function in a slightly different
manner. It will light green whenever a valid
source is connected to the external sync
input. It will not light if a valid source has
not been connected.