[AusNOG] Reference clock for SDH network

[Tom Storey]

Hi All,

Can anyone suggest a clock that is able to produce a 2mbit/2mhz sync  
signal to use as a reference for an SDH network?

The network is detatched from any existing SDH networks, so I have to  
clock it from scratch.

So far I have only come across one that is around the $3k mark  
(Oscilloquartz), and my googlefu is failing me at the moment.

Thanks.
Tom