
Chapter 5. Configuration Menu
5-10
TDU 120e User Manual
61202156L2-1
Internal Timing
The TDU 120e is the source of timing. The TDU 120e
is configured to use its own internal oscillator as the
source of timing. Applications include private line
driver circuits where one end is set to network and
the other to internal. See Figure 5-7.
Figure 5-7. Internal Clock Source
INTERNAL
OSCILLATOR
SECONDARY
INTERFACE
OPTION CARD
NETWORK
INTERFACE
BASE Nx56/64
BASE DS-1
PBX
DTE CLOCK
T1 Transmit
T1 Receive
Summary of Contents for 1202155L1
Page 1: ...TDU 120e User Manual Part Number 1202156L2 1202155L2 September 2001 61202156L2 1C...
Page 20: ...Table of Contents xx TDU 120e User Manual 61202156L2 1...
Page 22: ...List of Figures xxii TDU 120e User Manual 61202156L2 1...
Page 24: ...List of Tables xxiv TDU 120e User Manual 612022156L2 1...
Page 42: ...Chapter 2 Installation 2 12 TDU 120e User Manual 61202156L2 1...
Page 92: ...Chapter 5 Configuration Menu 5 30 TDU 120e User Manual 61202156L2 1...
Page 108: ...Chapter 7 Test Menu 7 12 TDU 120e User Manual 61202156L2 1...
Page 116: ...Chapter 8 Remote Management Menus 8 8 TDU 120e User Manual 61202156L2 1A...
Page 124: ...Appendix A Understanding SNMP A 8 TDU 120e User Manual 61202156L2 1...