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Chapter 5. Configuration Menu
61202156L2-1 TDU 120e User Manual 5-9
Base DTE Timing
The Base DTE is the source of timing. The TDU 120e
uses the incoming DTE clock to determine the trans-
mission timing. This is typically used in applications
where it is necessary to have the DTE as the primary
clock source (such as limited distance line drivers).
See Figure 5-6.
Figure 5-6. Base DTE Timed Clock Source
INTERNAL
OSCILLATOR
SECONDARY
INTERFACE
OPTION CARD
NETWORK
INTERFACE
BASE Nx56/64 BASE DS-1
PBX
DTE CLOCK
T1 Transmit
T1 Receive