3Com SuperStack 3 4400 SE 3C17206 Getting Started Manual

Also see for 3C17204: Datasheet Getting started guide Getting started guide Getting started guide Implementation guide

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3Com SuperStack 3 4400 SE 3C17206 Getting Started Manual Manual pdf 32 page image

32 CHAPTER 2: INSTALLING THE SWITCH■ 3Com NBX 2102PE Business Phone (3C10226PE)■ 3Com NBX 2102PEIR Business Phone with IR (3C10228RPE)■ 3Com NBX 3102 Business Phone (3C10402A)■ 3Com NBX ATA Business Phone (3C10400)■ Network Jacks:■ 3Com NJ90 (3CNJ90)■ 3Com NJ95 (3CNJ95■ 3Com NJ100 (3CNJ100, 3CNJ100-CRM)■ 3Com NJ105 - 3CNJ105■ 3Com NJ105 + forwarding (3CNJ105)■ 3Com NJ200 (3CNJ200, 3CNJ200-CRM)■ 3Com NJ200 + forwarding (3CNJ200)■ 3Com NJ205 (3CNJ205)■ 3Com NJ205 + forwarding (3CNJ205)For the latest list of supported devices, go to the product page on the3Com web site http://www.3com.com/.For further information about Power Over Ethernet, refer to “PowerManagement and Control” in the Switch Implementation Guide suppliedon the CD-ROM that accompanies your Switch. Power over Ethernetmanagement is available using the web interface or the command lineinterface (CLI).Choosing the CorrectCables (Switch 4400,4400 SE and4400 PWR)All of the ports on the front of the Switch 4400, 4400 SE and 4400 PWRare Auto-MDIX, that is they have a cross-over capability. The port canautomatically detect whether it needs to operate in MDI or MDIX mode.Therefore you can make a connection to a port with a straight-through(MDI) or a cross-over cable (MDIX).The Auto-MDIX feature only operates when enabled per port and ifauto-negotiation is enabled.If auto-negotiation is disabled, all the Switch ports are configured asMDIX (cross-over). If you want to make a connection to another MDIXport, you need a cross-over cable. Many ports on workstations andservers are configured as MDI (straight-through). If you want to make aDUA1720-3AAA07.book Page 32 Wednesday, March 17, 2004 1:14 PM