HP AdvanceStack 10Base-T Hub-12 Installation And Reference Manual page 12

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4
Troubleshooting Approaches . . . . . . . . . . . . . . . . . . . . . . 4-2
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Installation Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Cabling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Unusual Network Activity . . . . . . . . . . . . . . . . . . . . . . . . 4-8
IP Configuration Errors . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Clearing a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . 4-12
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LED Pattern During Self-Test . . . . . . . . . . . . . . . . . . . 4-3
LED Error Indications . . . . . . . . . . . . . . . . . . . . . . . 4-4
Incorrect Installation . . . . . . . . . . . . . . . . . . . . . . . . 4-6
ASCII Console Connection Problems . . . . . . . . . . . . . . 4-6
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Non-standard Cables . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Testing the Hub Only . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Testing the Hub's Ports and the Links . . . . . . . . . . . . . . 4-9
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . 4-10
Hewlett-Packard FTP Library Service . . . . . . . . . . . . . . 4-13
CompuServe . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
HP FIRST Fax Retrieval Service . . . . . . . . . . . . . . . . . 4-15
HP Network Phone-In Support (NPS) . . . . . . . . . . . . . . 4-15

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Hp advancestack 10base-t hub-24Hp advancestack 10base-t hub-48Hp j2600aHp j2601bHp j2602b

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