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Chapter 5. Configuration Menu
61202129L1-1 TSU 120 User Manual
5-9
Internal Timing
The TSU 120 is the source of timing. The TSU 120 is configured
to use its own internal oscillator as the source of timing. Appli-
cations include private line driver circuits where one end is set
to network and the other to internal. See Figure 5-5.
Figure 5-5. Internal Clock Source
DTE
OSC
(OPTION)
Network
Interface
T1 XMIT
T1 Receive
(DS1)
Nx56/64
DTE CLOCK
DSX-1
PBX