Using An External Clock Reference; External Channel Clock; External Reference Clock - Black Box Echo Series User Manual

Echo 2 Mbps Multiplexer

Using an external Clock reference

A range of external clock reference options are available, and can be seen in the table above.
An external clock BNC connector is available for connection of a TTL square wave with a
stability of 50ppm or better. Alternatively, the Echo may be clock slaved to one of the data
channels. When this option is selected, the appropriate channel's clocks must, of course, be
set to EXTernal. As with the other external clock options, it is important that the clock
provided to the channel interface has a stability of 50ppm or better.

External Channel Clock

External Reference Clock

26
SALES: 0118 965 5100