Epson B12B808393 Product Support Bulletin(s)

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PSB.2004.10.003

EPSON

P

RODUCT

S

UPPORT

B

ULLETIN

Date:

10/08/2004

Originator:

DS

PSB #:

PSB.2004.10.003

Authorization:

Reference:

TE 04-0295, Rev. A

Total Pages:

2

Product(s):

The following products that use TDK’s PHY chip.

C82391*, C12C82402*, C12C82405*, EPSON Network Image Express Card

Subject:

Compatibility of Cisco Catalyst 3560/3750/4500/6500 Series Switches/Hubs

This bulletin was created to provide information concerning Cisco HUB/Switch products

(including Network modules) and EPSON Print Servers that experience link problems

when directly connected.

Cause:

There is a limitation of the TDK chip to recognize the First-Link-Pulse (FLP) in Auto

Negotiation

.

The Cisco products use PoE** (Cisco Inline Power).

When PoE and FLP are

in use, Auto Negotiation cannot be established therefore a link cannot be established

between the Switch/ HUB and the Print Server.

** PoE (Power over Ethernet): This technology provides power over the Ethernet cable

connection.

Countermeasure Plans:

Auto Negotiation cannot be used in either the Switch/HUB or the Print Server

because the Print Server uses link speed settings with Half or Full duplex on the

Switch/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. The

Epson products are provided power from either the printer slot or an AC Power

Adapter.

2.) Connect another Switch/HUB between the Cisco product HUB/Switch and EPSON

Print Server.

Target Products from Cisco:

In the product matrix noted below where the “OK” is designated for the model of the

Cisco 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 problem

will not occur.

** The following list only corresponds to the Cisco Inline Power products.

** Also, the following list is comprised of currently selling products.