Epson C12C823912 Quick Reference Guide

EPSON

RODUCT SUPPORT BULLETIN

P

Date:
PSB #:
Reference:
Product(s):

Subject:

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.

10/08/2004
PSB.2004.10.003
TE 04-0295, Rev. A
The following products that use TDK’s PHY chip.
C82391*, C12C82402*, C12C82405*, EPSON Network Image Express Card
Compatibility of Cisco Catalyst 3560/3750/4500/6500 Series Switches/Hubs

Originator:
Authorization:
Total Pages:

DS

2

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.

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PSB.2004.10.003

The Cisco Inline Power products are included from 2000, therefore, there is a possibility
the same problem will occur by the time of product discontinuation.

** In the product where “Update” is noted to IEEE802.3af PoE in the following list,
IEEE802.3af may be used with the updated module.

Catalyst6500 Series

Cisco Inline Power

(Cisco original PoE•

IEEE802.3af PoE

(Standard)
WS-X6548-GE-45AF OK OK
WS-X6548V-GE-TX OK Upgrade
WS-X6548-GE-TX OK Upgrade
WS-X6148-GE-45AF OK OK
WS-X6148V-GE-TX OK Upgrade
WS-X6148-GE-TX OK Upgrade
WS-X6148X2-45AF OK OK
WS-X6148-45AF OK OK
WS-X6148-RJ45V OK
WS-X6148-21AF OK OK
WS-X6148-RJ21V OK
WS-X6148X2-RJ-45 OK Upgrade
WS-X6348-RJ-45 OK Upgrade
WS-X6348-RJ-21 OK Upgrade
WS-X6348-RJ45V OK
WS-X6348-RJ21V OK

Catalyst4500 Series

WS-X4548-GB-RJ45V OK OK
WS-X4148-RJ45V OK
WS-X4248-RJ21V OK OK
WS-X4248-RJ45V OK OK

Catalyst 3750-24PS-S OK OK
Catalyst 3750-24PS-E OK OK
Catalyst 3750-48PS-S OK OK
Catalyst 3750-48PS-E OK OK
Catalyst 3560-24PS-S OK OK
Catalyst 3560-24PS-E OK OK
Catalyst 3560-48PS-S OK OK
Catalyst 3560-48PS-E OK OK

** Designation of Cisco In-Line Power and conformity to IEEE PoE

Cisco In-Line Power PoE(Power over Ethernet)

- Cisco original standard.

- Input 9W

PSB.2004.10.003

- Conformity to IEEE802.3af standard

- Input 15.4W

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