CTC Union ETU-01A - Typical System Application

Chapter 1. Introduction
9
November 2001
1.4 Typical System Applications
General
In a typical application (Figure 1-1), the ETU-01A is used in
a point-to-point connection. The synchronous data channels of
each host are connected over an E1 line.
Figure 1-1 Point-to-Point Application
Fractional E1 data service is based on the assumption that the
user data rate is a fraction of the available E1 bandwidth, in
multiples of 56K or 64K.
Figure 1-2 Fractional E1, Cascade Application
In the above figure, the available E1 Time Slots are divided
(Fractional E1) and cascaded (multiplexed). Various data
interfaces are employed in each ETU-01A to provide connections
between hosts, LANs and servers across the E1 transmission
facility.