ADTRAN ESU 120e user manual Network Timed Clock Source

Chapter 5. Configuration Menu

Network Timed

The network is the source of timing. The received data clocking is looped back to the network where it is used to determine the trans- mission timing. This option is also referred to as loop timed as the transmission clock is derived from the received clock. See Figure 5- 2.

E1 XMIT

E1 Receive

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

DTEPBX

Figure 5-2. Network Timed Clock Source

5-6 ESU 120e User Manual 61200420L1-1