Comtech EF Data DTMX5000 SpectraCast - Manual (Page 138)

Central Configuration Unit DTMX5000 IP Gateway
B-2 Rev. 1
B.2 DTMX5000 Service
The DTMX5000 service is incremental, meaning that it enhances the
downloading speed of a subscriber’s existing standard Internet connection. This
existing connection can be any standard connection, for example, a simple dial-
up account, an ISDN connection, or a frame-relay service.
The DTMX5000 service makes use of the subscriber’s existing Internet
connection, and enhances the bandwidth of the downstream traffic (meaning
traffic coming from the internet to the client). The upstream bandwidth is not
changed, but due to the asymmetrical nature of typical Internet access
(downstream traffic requires far more bandwidth than upstream traffic), overall
web access becomes much faster.
Figure 1-2 illustrates the interaction between the elements of the DTMX5000
system.
The stages involved between starting and terminating a session are described in
detail on the subsequent pages.