Chapter 6. Diagnostics
61200663L1-1
OSU 300 User Manual
6-3
DS3 Payload Loopback
During this test, all payload information is re-framed and looped
back towards the network. See Figure 6-3 for a block diagram
illustrating the loopback point and the signal paths for this test.
Figure 6-3. DS3 Payload Loopback Test
BERT
Select
BERT
to perform a bit error rate test over the entire payload
bandwidth. Only one BERT test may be performed at a time.
Remote DS3 Loopback
This selection initiates a DS3 loopback test for the remote unit.
Remote DS3 Loopback with BERT
This selection initiates a DS3 loopback test for the remote unit and
sends/checks the BERT pattern over the entire DS3 payload
bandwidth.
DTE Ports 1-4
Access the DTE port diagnostic options by selecting the number
corresponding with the desired port (options
2
through
5
) from the
This test does not interrupt data flow from the network to the DTE, but
it does block all DTE-to-network data.
DTE
OSU 300
Summary of Contents for 1200218L1
Page 8: ...viii...
Page 14: ...Table of Contents xiv OSU 300 User Manual 61200663L1 1...
Page 18: ...List of Tables xviii OSU 300 User Manual 61200663L1 1...
Page 24: ...Chapter 1 Introduction 1 6 OSU 300 User Manual 61200663L1 1...
Page 38: ...Chapter 2 Installation and Operation 2 14 OSU 300 User Manual 61200663L1 1...
Page 64: ...Chapter 4 Status 4 8 OSU 300 User Manual 61200663L1 1...
Page 72: ...Chapter 5 Statistics 5 8 OSU 300 User Manual 61200663L1 1...
Page 104: ...Appendix C Acronyms Abbreviations C 4 OSU 300 User Manual 61200663L1 1...
Page 116: ...Appendix D Glossary D 12 OSU 300 User Manual 61200663L1 1...
Page 122: ...Index Index 6 OSU 300 User Manual 61200663L1 1...