3Com manual Officeconnect Ethernet HUB 8 and 8C, Ethernet Hub 8 and 8C-Front, Port Status LEDs

Page 17

THE OFFICECONNECT ETHERNET HUB 8 AND 8C

Ethernet Hub 8 and 8C—Front

Alert LED

Activity LED

orange

(Hub 8 only)

Alerts you to excessive

yellow

network use or an

Flashes each time a

isolated (partitioned)

packet is received

10BASE-T port.

on a port.

Port Status LEDs

green/yellow

Indicates the status of each port.

green — The link between the port and the next piece of network equipment is OK. yellow — The port has partitioned due to a fault on that segment.

off — Nothing is connected to the port or the link has failed.

The 10BASE-2 port LED (Hub 8C only) can only be yellow or off. It is yellow if the port has partitioned.

 

 

 

Port Status

 

 

Network Utilization

 

Alert

Power ActivityCollision

1 2 3 4 5 6 7 8 COAX

1% 2% 3% 6% 12% 25% 50% 80%

 

 

Green = OK, Yellow = Partitioned

 

OfficeConnect Ethernet Hub 8C

Power LED

Collision LED

Network Utilization LEDs (Hub 8C only)

green

Indicates that the hub is powered on.

yellow

green/yellow/orange

Flashes each time a collision is detected on the network.

Indicates how much your network is being used.

Collisions are part of normal network operation.

 

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Contents OfficeConnect Ethernet Hub 4, 4C, 8, 8C 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Important Safety Information Wichtige Sicherheitshinweise Consignes importantes de sécurité Technical Support Introduction What Else Do I Need? Creating Your NetworkWorkstation Connections Transceiver ConnectionsTwisted Pair TP Cables Hub Connections10BASE-2 Stacking Clip Stacking the Units TogetherRubber Feet Securing Your Hub Using Your HubPositioning Your Hub Ethernet Hub 4 and 4C-Front Officeconnect Ethernet HUB 4 and 4CNetwork Utilization LEDs Hub 4C only AUI/COAX Status LEDs Hub 4C only10BASE-2 port Hub 4C only Ethernet Hub 4 and 4C-RearConnecting Transceivers to the AUI Port Connecting Workstations and Other Equipment to Your HubConnecting OfficeConnect Ethernet Hubs Together Checking Connections Connecting Hubs Using 10BASE-2Spot Checks Connecting Hubs Using 10BASE-TProblem Solving for the HUB 4 and 4C Straight-through Cable/Crossover Cable Officeconnect Ethernet HUB 8 and 8C Power LED Collision LEDEthernet Hub 8 and 8C-Front Port Status LEDs10BASE-2 port Hub 8C only Power Adapter socket Uplink/Normal switchEthernet Hub 8 and 8C-Rear Connecting Workstations and Other Equipment to Your Hub 50 Ohm Terminator Switch set to Normal out Uplink Problem Solving for the HUB 8 and 8C Normal Pin Uplink Port Rx+ Tx+ Networking Terminology Dimensions and Operating Conditions Dimensions and StandardsPower Weight StandardsEnd Of Life Statement Environmental StatementsRegulated Materials Statement Environmental Statement about the DocumentationImportant Safety Information Wichtige Sicherheitshinweise Consignes Importantes DE Sécurité 3Com Knowledgebase Web Services Online Technical ServicesTechnical Support World Wide Web SiteSupport from 3Com Support from Your Network SupplierEurope, South Africa, and Middle East Country Telephone Number Asia, Pacific RimEurope North America Country Telephone Number Latin AmericaCountry Telephone Number Fax Number Returning Products for Repair3Com Corporation Limited Warranty Warranties Exclusive Disclaimer Electromagnetic Compatibility Wall mounting screw hole guide 150 mm 5.9 Part No. DUA 1670-0AAA04 Published June