Dsx-1 Timed; Figure 1-5. Dsx-1 Timed Clock Source - ADTRAN TSU 120 User Manual

Chapter 1. Introduction

DSX-1 Timed

T1 XMIT
( D S 1 )
T1 Receive
1 2
The PBX is the source of timing. The TSU 120 uses the
clock derived by the Base DSX-1 interface for trans-
mission timing (see Figure 1-5).
The Base DSX-1 source timing is restricted from use when a
secondary interface is used at the same time.
OSC
Network
Interface
Nx56/64
DTE CLOCK
DTE
TSU 120 User Manual
(OPTION)
DSX-1
PBX
DSX-1 Timed Clock Source
Figure 1-5
61200.129L1-1