61202156L2-1
TDU 120e User Manual
C-1
Appendix C
System Messages
This appendix lists and defines the alarm and status mes-
sages that appear on the monitor screen.
ALARM MESSAGES
Network Interface (NI)
Red Alarm
NI unable to frame align with incoming signal.
Yellow Alarm
Remote alarm indication (RAI) being received from far
end.
Blue Alarm
Unframed all ones (1s) (AIS) being received at NI.
Loss of Signal
No signal detected at NI.
Nx/DBU Interface
The following messages indicate an alarm condition on
the Nx/DBU port:
Clock Slip
Difference in frequency of the data clock at the network
and DTE.
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...