ADTRAN TDU 120e user manual Base DTE Timing, Base DTE Timed Clock Source

Chapter 5. Configuration Menu

Base DTE Timing

The Base DTE is the source of timing. The TDU 120e uses the incoming DTE clock to determine the trans- mission timing. This is typically used in applications where it is necessary to have the DTE as the primary clock source (such as limited distance line drivers).

See Figure 5-6.

INTERNAL
OSCILLATOR
T1 Transmit
NETWORK	SECONDARY
	INTERFACE
INTERFACE
	OPTION CARD
T1 Receive
BASE Nx56/64	BASE DS-1

DTE CLOCK

PBX

Figure 5-6. Base DTE Timed Clock Source

61202156L2-1 TDU 120e User Manual 5-9