Chapter 6. Diagnostics
6-2
MX2800 STS-1 User Manual
61200659L1-1
VT/PORT LOOPBACKS
After you select the number that corresponds with the line you want
to test, the menu in Figure 6-2 appears. The number selected
(1-28) refers to the VT number. The Port (T1/E1) that will be tested
is the port mapped to the selected VT number. The sections
following the figure provide descriptions and illustrations of the
testing options. Select
1-D
ATA
M
ODE
to end a test in progress.
Figure 6-2. VT/Port Diagnostics Menu
Tributary
A
T
RIBUTARY
loopback loops the selected VT/Port back to the
network (STS-1). The T1/E1 is looped back through the STS-1
mapper. During this loopback, the corresponding DSX-1/E1 input
is overwritten by the outgoing DSX-1/E1 signal. See Figure 6-3 on
page 6-3 for an illustration of this test.
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Страница 90: ...Chapter 3 Configuration 3 44 MX2800 STS 1 User Manual 61200659L1 1...
Страница 134: ...Chapter 6 Diagnostics 6 12 MX2800 STS 1 User Manual 61200659L1 1...
Страница 140: ...Chapter 7 Circuit and Network Redundancy 7 6 MX2800 STS 1 User Manual 61200659L1 1...
Страница 146: ...Chapter 8 Power Loss Recovery 8 6 MX2800 STS 1 User Manual 61200659L1 1...
Страница 160: ...Chapter 9 Transaction Language 1 TL1 9 14 MX2800 STS 1 User Manual 61200659L1 1...
Страница 164: ...Appendix A Pinouts A 4 MX2800 STS 1 User Manual 61200659L1 1...
Страница 168: ...Appendix B Specifications Summary B 4 MX2800 STS 1 User Manual 61200659L1 1...
Страница 174: ...Appendix C Acronyms Abbreviations C 6 MX2800 STS 1 User Manual 61200659L1 1...