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Chapter 5. Configuration Menu
61200420L1-1 ESU 120e User Manual 5-7
Base D rop Timed
The PBX is the source of timing. The ESU 120e uses the clock
derived by the Base Drop interface for transmission timing (see Fig-
ure 5-3).
Figure 5-3. D rop Timed Clock Source
DTE
OSC
(OPTION)
Network
Interface
E1 XMIT
E1 Receive
Nx56/64
DTE CLOCK
Drop Port
PBX