Understanding the time from which the Air Traffic Controller keys PTT until the IP stream indicates that the PTT bit is set is a relevant testing scenario. Measuring delay, jitter and packet loss through these networks is critical and network testers will need to precisely time events. This tool is equipped with optional TTL I/O ports to trigger events of interest occurrence during tests. GL offers PacketExpert™ 10GX (PXN100) Ethernet/IP hardware platform support four 1G ports on the unit. The Packet Analyzer, Packetizer, Discrete Signal Logger, and Event Data Logger products are all 1U rack platforms based on the same GL’s PacketExpert™ Ethernet/IP hardware their functionalities differ through scripts that cater to different needs of test cycle. Refer to Delay Measurements section for detailed information about the GL Test Tools used in the solution. All the components support a client server model, with the MAPS™ Admin acting as a client and controlling all the other components which act as servers, from a centralised location. All these components are controlled by a centralised component called MAPS™ Administrator (TM-ATM Client). The above TM-ATM solution includes various GL test tools such as Audio Analyzer (which uses GL's VQuad™) and Packet Analyzer, TTL Signal Packetizer, Discrete Signal Logger, Event Data Logger (all these components use GL’s PacketExpert™- platform).
#Air traffic controller 3 pc hd software
It includes all necessary hardware and software to identify, capture, timestamp, and correlate events at Analog, TDM and IP interfaces. GL has developed MAPS™ TM-ATM (Timing Measurements in Air Traffic Management) test suite to accurately simulate end points in ATM network and provide critical timing measurements for various types of delay occurrences in signaling and voice transmission through the network. GL's TM-ATM Solution for Timing Measurements Delay measurements should be conducted repeatedly to ensure that the device and network under test is performing as expected consistently over time. Recognizing, capturing, timestamping, and correlating events at analog, TDM and IP interfaces are necessary. Rigorous methods are needed to precisely measure the delay introduced by each network element as events propagate end-to-end. Characterizing and limiting these impairments is critical to the performance of the system as a whole. These implementation differences impact end-to-end delay requirements imposed by various industry standard bodies. Some of these are: implementation of technologies with varied jitter buffer, packetization, digital signal processing algorithms, VOX operations, and switching from idle to active state.
Though migrating to an IP network provides convergence advantages for traffic and interoperable network elements from various vendors, it also poses challenges – of variability of different implementations by equipment vendors.
The legacy TDM VCS system will initially connect to an IP WAN network backbone using VoIP gateways. The familiar industry standard SIP protocol is specified to establish, modify, and terminate voice sessions with endpoint equipment within an Air Traffic Services Ground Voice Network (AGVN).Īs shown above, the endpoint equipment can be a SIP based Controller Working Position (CWPs), Next Generation Voice Communication Systems (VCS) and Radios, or VCS/Radio Gateways allowing interworking with older legacy equipment and protocols. The latest EUROCAE (European Organization for Civil Aviation Equipment) ED-137 inter-operability standards, address migration and implementation of IP technology for voice services for air traffic control.
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