33..1010 GPS ReceiverGPS Receiver
33..1010..11 G0325A GPS ReceiverG0325A GPS Receiver
G0325A GPS Receiver contains GPS antenna and GPS receiver and is used by
connecting to AUX connector of Network Master. The synchronization
accuracy against UTC is ±1 μs or less.
The GPS receiver is used for:
Precise time synchronization, when making one way Frame Transfer Delay
measurements as part of the Ethernet Service Activation Test.
Clock source in an IEEE 1588v2 system
Timing source for synchronizing Ethernet transmitters
Activating the GPS receiverActivating the GPS receiver
The GPS receiver is activated automatically if it has connected to AUX of the
Network Master.
Using the GPS serviceUsing the GPS service
One purpose of the external GPS receiver is to provide for precise one way
Frame Transfer Delay measurements as part of the Ethernet Service Activation
Test.
When the GPS receiver is activated and the active interface is Ethernet, the
Network Master will calibrate its internal time base to the ultra precise time
signal from the GPS receiver. The calibration process takes approximately 1
minute.
33..1010..22 Operating GPS ReceiverOperating GPS Receiver
33..1010..22..11 GPS IconGPS Icon
An icon in the status bar will indicate the current GPS status. One of the
following icons will be shown:
The GPS receiver is receiving signal from a sufficient
number of satellites.
GPS receiver is not connected.
Touching the icon will display an information pop-up dialog box.