Sonifex AVN-GMC, Руководство пользователя

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1 AVN-GMC IEEE1588 PTP Grandmaster Clock with GPS Receiver
The unit has a front panel power button and dual power connectors - an IEC
mains input and a 12V DC input, which allows the AVN-GMCS to be used for
both studio and mobile installations. Moreover this allows for a secondary
power source to reduce the effect of power down events. In any case, the
unit monitors the status of both power sources and displays this on the front
panel.
The unit can be put into a low-power sleep mode when not in use, with
an instant start when power is re-applied. In power off situations, a super
capacitor is used to keep the GPS receiver powered in a low power mode for
more than 20 hours, enabling the receiver to regain lock immediately rather
than having to ‘cold’ start. A Real-Time Clock (RTC) is fitted to hold the time
over power off conditions.
Front Panel Display & Indicators
Front Panel Indicators
Ethernet
An indication of network link status. This LED is
green when an Ethernet link is established or
red when the link is down.
GPS
If the unit is using GPS as its primary
synchronisation source, this LED is illuminated
green.
Sync In
If the unit is using the external input as the primary synchronisation source,
this LED is illuminated green.
Lock
GPS Mode:
Green - The GPS receiver has locked to 4 or more satellites.
Yellow - The GPS receiver has locked to 3 satellites.
Red - The GPS receiver has locked to 2 or fewer satellites.
Ext Sync Mode:
Green - The input sync clock is valid.
Red - The input sync clock is invalid or disconnected.
Master
Green - This means that the PTP state of the unit is set to
Master.
Yellow - This shows that the unit is in another PTP state other
than Master or Slave.
Red - This means that the PTP state of the unit is set to Slave.
AC PSU & DC PSU
The colour of these LEDs show the state of each power input:
Green - This means that the cable is plugged in and is providing the correct
voltage level, within the range 11V to 13V.
Yellow - This means that the cable is plugged in but the voltage level is in a
warning state, within the ranges of either 10V to 11V or 13V to 14V.
Red - This means that the cable is unplugged or the voltage level is out of
specification (less than 10V or more than 14V).
Fig 1-2: Front Panel
Indicators