Epson C12C823912 - Net 2 Print Server Product Support Bulletin

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Page 1 of 2PSB.2004.10.003EPSON PRODUCT SUPPORT BULLETINDate: 10/08/2004 Originator: DSPSB #: PSB.2004.10.003 Authorization:Reference: TE 04-0295, Rev. A Total Pages: 2Product(s): The following products that use TDK’s PHY chip.C82391*, C12C82402*, C12C82405*, EPSON Network Image Express CardSubject: Compatibility of Cisco Catalyst 3560/3750/4500/6500 Series Switches/HubsThis bulletin was created to provide information concerning Cisco HUB/Switch products(including Network modules) and EPSON Print Servers that experience link problemswhen directly connected.Cause:There is a limitation of the TDK chip to recognize the First-Link-Pulse (FLP) in AutoNegotiation. The Cisco products use PoE** (Cisco Inline Power). When PoE and FLP arein use, Auto Negotiation cannot be established therefore a link cannot be establishedbetween the Switch/ HUB and the Print Server.** PoE (Power over Ethernet): This technology provides power over the Ethernet cableconnection.Countermeasure Plans:Auto Negotiation cannot be used in either the Switch/HUB or the Print Serverbecause the Print Server uses link speed settings with Half or Full duplex on theSwitch/HUB or Print Server.1.) Disable the Cisco Inline Power on the Cisco Products HUB/Switch.The Cisco Inline Power is unnecessary for EPSON products Print Servers. TheEpson products are provided power from either the printer slot or an AC PowerAdapter.2.) Connect another Switch/HUB between the Cisco product HUB/Switch and EPSONPrint Server.Target Products from Cisco:In the product matrix noted below where the “OK” is designated for the model of theCisco Inline Power product, there is a possibility that the link problem will occur.However, when IEEE802.3af is used in the same product, it is possible that the problemwill not occur.** The following list only corresponds to the Cisco Inline Power products.** Also, the following list is comprised of currently selling products.

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