Chapter 4. Status
61200290L1-1
MX2800 User Manual
4-7
Card Comm
This field displays the current state of the communication link
between the two controller cards.
OK
indicates that the cards are
communicating;
F
AILURE
indicates that the cards are not able to
communicate with each other. If there is only one card installed,
N
ON
-R
EDUNDANT
is displayed.
DS2 STATE
This field displays the current state of each of the seven DS2s.
Possible states are listed in the following table:
For more information on the different types of Protection Modes, see the
chapter Circuit and Network Redundancy on page 7-1.
Condition
Description
OK
The DS2 is not receiving alarms.
LOF
The unit detects framing loss across the DS2.
RAI
The unit is receiving an RAI (yellow) alarm across
the DS2. This alarm is a signal sent back toward
the source of a failed transmit circuit. The X-bits
(X1 and X2) are set to zero.
AIS
The unit is receiving an AIS (blue) alarm condition
from the network across the DS2. AIS alarms occur
when the unit receives unframed all ones.
Summary of Contents for TOTAL ACCESS MX2800
Page 8: ...viii MX2800 User Manual 61200290L1 1...
Page 16: ...List of Tables xvi MX2800 User Manual 61200290L1 1...
Page 100: ...Chapter 7 Circuit and Network Redundancy 7 6 MX2800 User Manual 61200290L1 1...
Page 106: ...Chapter 8 Power Loss Recovery 8 6 MX2800 User Manual 61200290L1 1...
Page 110: ...Appendix A Pinouts A 4 MX2800 User Manual 61200290L1 1...
Page 114: ...Appendix B Specifications Summary B 4 MX2800 User Manual 61200290L1 1...
Page 130: ...Appendix D Glossary D 12 MX2800 User Manual 61200290L1 1...
Page 140: ...Index Index 10 MX2800 User Manual 61200290L1 1...
Page 142: ......