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

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ESU 120e User Manual

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ADTRAN ESU 120e user manual Network Timed Clock Source