Chapter 6. Diagnostics
6-6
MX2800 STS-1 User Manual
61200659L1-1
Figure 6-7. Diagnostics Menu with BERT Selected
VT BERT
A
VT
BERT
enables the MX2800 STS-1 to perform a “head-to-
head”
BERT
test towards the STS-1 network. Selecting
VT
BERT
will replace all incoming T1/E1 traffic for the T1/E1 mapped to the
selected VT with an
unframed
QRSS pattern towards the network.
When
VT
BERT
is selected, additional menu items will appear to
show the state of pattern synchronization, cumulative error count,
and a clear error count option. Selecting
D
ATA
M
ODE
will cease
QRSS pattern generation and substitution of the incoming data
stream. See Figure 6-8 on page 6-7 for an illustration of this test.
Only one T1 port may engage a
CSU L
OOPBACK
,
CSU L
OOPBACK
W
/B
ERT
, or a
L
INE
B
ERT
. If a
CSU L
OOPBACK
,
CSU L
OOPBACK
W
/B
ERT
, or a
L
INE
B
ERT
is already active at the time a new
CSU
L
OOPBACK
,
CSU L
OOPBACK
W
/B
ERT
, or
L
INE
B
ERT
is selected, the
former test will be terminated and the latter test will be engaged.
When in
VT
BERT
mode, only the
D
ATA
M
ODE
option for the
VT/Port under test may be selected. Selecting any other option will
cause an error message to be displayed.
Summary of Contents for 1200287L1
Page 10: ...x MX2800 STS 1 User Manual 61200659L1 1...
Page 18: ...Table of Contents xviii MX2800 STS 1 User Manual 61200659L1 1...
Page 22: ...List of Tables xxii MX2800 STS 1 User Manual 61200659L1 1...
Page 90: ...Chapter 3 Configuration 3 44 MX2800 STS 1 User Manual 61200659L1 1...
Page 134: ...Chapter 6 Diagnostics 6 12 MX2800 STS 1 User Manual 61200659L1 1...
Page 140: ...Chapter 7 Circuit and Network Redundancy 7 6 MX2800 STS 1 User Manual 61200659L1 1...
Page 146: ...Chapter 8 Power Loss Recovery 8 6 MX2800 STS 1 User Manual 61200659L1 1...
Page 160: ...Chapter 9 Transaction Language 1 TL1 9 14 MX2800 STS 1 User Manual 61200659L1 1...
Page 164: ...Appendix A Pinouts A 4 MX2800 STS 1 User Manual 61200659L1 1...
Page 168: ...Appendix B Specifications Summary B 4 MX2800 STS 1 User Manual 61200659L1 1...
Page 174: ...Appendix C Acronyms Abbreviations C 6 MX2800 STS 1 User Manual 61200659L1 1...