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Blog Central

DSL connections and Z/IP ONE codecs

Posted by Clark Novak on Jul 29, 2011 4:34:00 PM

John Tyler of Journal Broadcast's Milwaukee cluster writes: "I am trying to use our new Z/IP ONE IP codec for the first time. We got them up and running on the bench at the station, but when we took one codec out into the field for the first time it would connect for around 15 seconds, pass a few seconds of audio and then drop. We have a 6mbps DSL line that is dedicated to this broadcast. Do we need to assign a static IP address to our unit at the station?"

Telos Support guru Ted Alexander responds: "As with anything connected to a network, the reliability of the network is almost always the determining factor in the robustness of the connection. With this in mind, a static IP address is usually preferable. On some networks, the dynamic address may 'expire' or something in the network could change it. It depends on the network topography. Also remember, DSL lines are often not 'symmetrical' in upload and download speed availability. You may have a download speed of 2 or 3 mbps, but the upload speed may be throttled back to 384 kbps or less. The Z/IP needs the headroom to be able to use a higher speed upload bitrate than may be provided with a low capacity DSL connection. Plus, if anything besides a Z/IP is connected to the smaller pipeline and needs to share the bandwidth, that also could result in a dynamic 'crunch' that will result in a dropped connection."

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Topics: Telos Systems