Cabletron Systems ELS10-26TX User Manual

Also see for SmartSTACK 10 ELS10-26: Reference guide Getting started

Contents

ContentsviiCHAPTER 5 ELS10-26 DIAGNOSTICS ANDTROUBLESHOOTING5.1 POWER-UP DIAGNOSTICS ..................................................................5-15.1.1 Power-up LED Sequence ..............................................................5-15.1.2 Specific Power-up Tests ................................................................5-25.1.3 Software Checksum Comparison ................................................5-25.1.4 Power-up Diagnostics Results .....................................................5-35.2 RESPONSES TO FAILURES AT POWER-UP......................................5-35.3 STATUS AND ACTIVITY INDICATORS ............................................5-35.4 TROUBLESHOOTING............................................................................5-65.5 ELS10-26 DOES NOT POWER UP ........................................................5-65.5.1 Connectivity Problems..................................................................5-65.5.2 ELS10-26 Has Rebooted ................................................................5-65.5.3 ELS10-26 Does Not Respond to NMS .........................................5-7APPENDIX A TECHNICAL SPECIFICATIONSA.1 ELS10-26 SPECIFICATIONS ...............................................................A-1A.2 Serial Cable Pin Assignments .............................................................A-3A.3 10BASE-T Pin Assignments .................................................................A-4A.4 Straight-through Wiring ......................................................................A-5A.5 Crossover Wiring .................................................................................. A-6A.6 The 5 - 4 - 3 Rule ....................................................................................A-6A.7 FEPIM Specifications ............................................................................A-7APPENDIX B GLOSSARY