ADTRAN TSU ACE, Manual

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Chapter 5. Configuration Menu
5-4 TSU ACE User Manual 61200295L1-20
Network Timing
The network is the source of timing. The received data clock-
ing is looped back to the network, where it is used to deter-
mine the transmission timing. This option is also referred to
as looped timed as the transmission clock is derived from the
received clock. See Figure 5-3.
Figure 5-3. Network Timed Clock Source
DTE Timing
The DTE is the source of timing. The TSU ACE uses the in-
coming DTE clock to determine the transmission timing. This
is typically used in applications such as limited distance line
drivers, where it is necessary to have the DTE as the primary
clock source. See Figure 5-4.
Figure 5-4. DTE Clock Source