HP 24S Guía de usuario descargar pdf (Pagina 79)

Reactivating the Primary Link

When the primary link is repaired, you can use any of the following methods to reenable

the primary port:

From the hub’s console, use the Port command, PO n ON where n is the

primary port’s ID.

Cycle power on the hub. This is useful if you do not have access to the hub’s

console interface (for example, because the hub is in a wiring closet and a console

is not connected).

From an HP network management station, reenable the port or reset the hub.

See the network management product documentation for details on how to enable

a port or reset the hub.

When the primary port is reenabled, the backup port is automatically disabled and

returned to backup mode.

Backup Links E-5

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 101 102

HP EtherTwist 1
Hub and Hub Plus 1
HP 28684B Hub/12 3
HP 28688B Hub Plus 3
HP 28699A Hub Plus/48 3
What Is In This Guide 4
Contents 5
Hub Plus, and Hub Plus/48 9
Features (continued) 10
Included Parts 11
Front of the Hub 12
Back of the Hub 13
How the Hub Works 14
Auto-Segmentation 15
Link Beat 15
Installation 19
1. Mount the hub 20
Straight out 24
Connecting Computers 26
Connecting Other Hubs 27
Port Connections 28
ThinLAN Port 30
AUI Port 31
Console Connection 32
Configuration Commands 35
Operation 37
Troubleshooting 47
Diagnosing With the LEDs 49
Diagnostic Tests 50
Testing Twisted-Pair Cabling 51
Cables and Connectors 53
HP Cables 54
Other Standard Cables 55
Straight-through cable 56
Crossover cable 57
Thin LAN Cable Requirements 58
AUI Cable 59
RS-232-C “Crossover” Cable 61
RS-232-C Cable for HP 110 62
Null-Modem Adapter 62
RS-232-C Modem Cable 63
Specifications 65
Modem Configuration 69
Black Box V.32 9600 Async 70
Hayes 1200 Smartmodem 70
HP 28699A Only) 71
IPX Addressing Notes: 72
Using Assigned IP Addresses 72
Description 75
Limitations 76
Additional Notes 76
Configuring a Backup Link 77
Identifying the Backup Link 78
Reactivating the Primary Link 79
Sample Topologies 80
Safety Information 83
Symboles de sécurité 84
Hinweise zur Sicherheit 85
Simboli di sicurezza 86
ATTENZIONE 86
Símbolos de seguridad 87
Regulatory Statements 89
Declaration of 90
Conformity 90
Regulatory Statements 3 91
4 Regulatory Statements 92
Gewährleistung 94
Garantía 94
Garantie 94
Garanzia 94
Regulatory Information 101
Informacin reglamentaria 101
Printed in U.S.A 102
5090-2692 E0692 102

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HP 24S Guía de usuario Pagina 79

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