Emergency freeze

Did you know the DDW-x42 have a robust link up functionality?

In many applications, it is vital to keep the communication going even in poor environments that may be subject to bursts of electrical noise. Typically a burst of noise will induce interference on the communications cable causing the communications to break down. This is not a new problem, any application using modems or xDSL technology will experience interference from time to time. The net effect is a breakdown in communication and a renegotiation of the connection.  When using SHDSL, this can take up to one minute, which is a long time to lose communications on vital or critical infrastructure.

The DDW-x42 devices come with a very smart feature that helps to prevent the communication completely breaking down due to a short burst of noise on the interconnecting line. With the Emergency Freeze function enabled a retrain of the connection can be avoided. When the burst of interference has passed, the DDW-x42 will attempt to use the frozen parameters to reconnect.  There will still be a small interruption for the duration of the interference, but this will be a few tens of milliseconds instead of a full renegotiation taking tens of seconds.