Tait TB7300, Инструкция по установке и эксплуатации

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66 Installation TB7300 Installation and Operation Manual
© Tait Limited November 2016
traffic arriving at the reciter at the full rate within a small timing window
to overflow internal buffers and therefore suffer packet loss. If you set the
port speed to 100 Mbit/s and observe QoS lost packet alarms, then review
your Ethernet port speed settings.
With the port speed at 10 Mbit/s it is particularly important to set the voice
QoS on the reciter port of your site router or switch to a strict priority queue
policy - which is the same policy that you should also be setting for your
site link ports. The default QoS settings restrict the voice bandwidth to 1/
25th of the port speed which is smaller than the required bandwidth for
typical systems at 10 Mbit/s.
If necessary, refer to “Ethernet Connector” on page 73 for a list of Ethernet
connection pin allocations.