ADTRAN ESU 120e user manual Base D rop Timed, D rop Timed Clock Source

Chapter 5. Configuration Menu

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).

E1 XMIT

E1 Receive

		OSC
Network
Interface			( O P T I O N )
		Nx56/64	Drop Port
	DTE CLOCK

DTEPBX

Figure 5-3. D rop Timed Clock Source

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