DS3 multiplexors

[Simon Lockhart <simonl () rd bbc co uk>]

Can anyone recommend a product which can multiplex onto a DS3 or E3 the 
following services:

        - Fractional DS3/E3 (G.703 and/or HSSI)
        - T1/E1 (G.703 and/or X.21)
        - E2 (G.703) (Optional)
        - 64k channels (X.21) (Optional)

At the moment we're using Digital Link DL3100's, but are hitting problems 
with having just 3 HSSI ports.

Thanks,

Simon
-- 
Simon Lockhart                       |   Tel: +44 (0)1737 839676 
Internet Engineering Manager         |   Fax: +44 (0)1737 839516 
BBC Internet Services                | Email: Simon.Lockhart () bbc co uk 
Kingswood Warren,Tadworth,Surrey,UK  |   URL: http://support.bbc.co.uk/