Allied Telesis AT-PC2002/POE User Manual

Fast and Gigabit
Ethernet Media
Converter

AT-PC2002/POE

◆

Installation Guide

613-001049 Rev. A

Copyright © 2009 Allied Telesis, Inc.

All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.

Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names, logos or
other designations mentioned herein are trademarks or registered trademarks of their respective owners.

Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior
written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be liable for any
incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this
manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or should have known, the possibility of
such damages.

Electrical Safety and Emissions Standards

This product meets the following standards.

U.S. Federal Communications Commission

Declaration of Conformity

Manufacturer Name: Allied Telesis, Inc.

Declares that the product: Residential Gateway

Model Numbers: AT-PC2002/POE

This product complies with FCC Part 15B, Class B Limits:

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device
must not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.

Radiated Energy

Note: This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15
of FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with instructions, may cause harmful interference to radio or television reception, which can be determined
by turning the equipment off and on. The user is encouraged to try to correct the interference by one or more of the
following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and the receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your
authority to operate this equipment under Federal Communications Commission rules.

Industry Canada

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

European Union Restriction of the Use of Certain Hazardous Substances

(RoHS) in Electrical and Electronic Equipment

This Allied Telesis RoHS-compliant product conforms to the European Union Restriction of the Use of Certain Hazardous
Substances (RoHS) in Electrical and Electronic Equipment. Allied Telesis ensures RoHS conformance by requiring
supplier Declarations of Conformity, monitoring incoming materials, and maintaining manufacturing process controls.

RFI Emissions FCC Class B, EN55022 Class B, EN61000-

3-2, EN61000-3-3, VCCI Class B, C-TICK,
CE

Immunity EN55024

Electrical Safety EN60950 (TUV), UL 60950 (

CULUS

)

Laser Safety EN60825

3

Translated Safety Statements

Important: The  indicates that a translation of the safety statement is
available in a PDF document titled “Translated Safety Statements” (613-

000990) posted on the Allied Telesis website at www.alliedtelesis.com
and on this product CD.

4

Contents

Preface ............................................................................................................................................................ 11

Where to Find Web-based Guides ................................................................................................................... 12

Contacting Allied Telesis .................................................................................................................................. 13

Online Support ........................................................................................................................................... 13

Email and Telephone Support.................................................................................................................... 13

Returning Products .................................................................................................................................... 13

Sales and Corporate Information ............................................................................................................... 13

Warranty..................................................................................................................................................... 13

Management Software Updates................................................................................................................. 13

Chapter 1: Overview ...................................................................................................................................... 15

Introduction....................................................................................................................................................... 16

10/100/1000Base-T Twisted Pair Port.............................................................................................................. 18

Type of Connector...................................................................................................................................... 18

Port Speed ................................................................................................................................................. 18

Duplex Mode .............................................................................................................................................. 18

Maximum Distance..................................................................................................................................... 18

Type of Cabling .......................................................................................................................................... 19

Auto

MDI/MDI-X........................................................................................................................................................ 19

SFP Module Slot............................................................................................................................................... 20

Operating Modes .............................................................................................................................................. 21

Link Test Mode........................................................................................................................................... 21

MissingLink Mode ...................................................................................................................................... 21

Smart MissingLink Mode............................................................................................................................ 22

Setting the Operating Mode ....................................................................................................................... 23

Power over Ethernet......................................................................................................................................... 24

Implementation........................................................................................................................................... 25

LEDs................................................................................................................................................................. 26

Power LED ................................................................................................................................................. 26

10/100/1000Base-T Twisted Pair Port LEDs ............................................................................................. 27

SFP Module Slot LEDs .............................................................................................................................. 28

Operating Mode LEDs................................................................................................................................ 28

Link LEDs and the Operating Modes................................................................................................................ 29

Link Test Mode........................................................................................................................................... 29

MissingLink Mode ...................................................................................................................................... 29

Smart MissingLink Mode............................................................................................................................ 30

DIP Switches .................................................................................................................................................... 32

Network Topologies.......................................................................................................................................... 33

Chapter 2: Installation ................................................................................................................................... 37

Reviewing the Safety Guidelines...................................................................................................................... 38

Verifying the Package Contents ....................................................................................................................... 41

Selecting a Location ......................................................................................................................................... 43

Configuring the DIP Switches........................................................................................................................... 44

Installing the Feet ............................................................................................................................................. 45

5

Contents

Installing the Media Converter on a Wall .......................................................................................................... 46

Installing the SFP Module .................................................................................................................................47

Cabling the Ports .............................................................................................................................................. 49

Installing the Power Cord Retaining Clip .......................................................................................................... 50

Powering On the Media Converter.................................................................................................................... 51

Verifying the Installation.................................................................................................................................... 53

Chapter 3: Troubleshooting .......................................................................................................................... 55

Appendix A: Technical Specifications .........................................................................................................59

Physical............................................................................................................................................................. 59

Temperature ..................................................................................................................................................... 59

Electrical Specifications .................................................................................................................................... 59

Agency Certifications ........................................................................................................................................ 60

10/100/1000Base-T Port Pinouts ...................................................................................................................... 60

Appendix B: Cleaning Fiber Optic Connectors ........................................................................................... 63

Using a Cartridge-Type Cleaner .......................................................................................................................64

Using a Swab.................................................................................................................................................... 66

6

Figures

Figure 1: AT-PC2002/POEE Media Converter .....................................................................................................................16

Figure 2: LEDs on the AT-PC2002/POE Media Converter...................................................................................................26

Figure 3: Topology 1.............................................................................................................................................................33

Figure 4: Topology 2.............................................................................................................................................................34

Figure 5: Topology 3.............................................................................................................................................................35

Figure 6: Attaching the Rubber Feet for Table or Desktop Installation.................................................................................45

Figure 7: Positioning the Media Converter on the Wall Screws............................................................................................46

Figure 8: Installing the SFP Module......................................................................................................................................47

Figure 9: Positioning the SFP Handle...................................................................................................................................48

Figure 10: Inserting the AC Power Cord Retaining Clip .......................................................................................................50

Figure 11: Power Cord Retaining Clip in the Upright Position ..............................................................................................51

Figure 12: Connecting the AC Power Cord ..........................................................................................................................51

Figure 13: Securing the Power Cord with the Retaining Clip................................................................................................52

Figure 14: RJ-45 Connector and Port Pin Layout.................................................................................................................60

Figure 15: Ferrule in an SC Connector Plug.........................................................................................................................63

Figure 16: Unclean and Clean Ferrule..................................................................................................................................63

Figure 17: Cartridge Cleaner ................................................................................................................................................64

Figure 18: Rubbing the Ferrule Tip on the Cleaning Surface ...............................................................................................65

Figure 19: Lint-Free and Alcohol-Free Swabs......................................................................................................................66

Figure 20: Cleaning a Recessed Ferrule..............................................................................................................................66

7

Figures

8

Tables

Table 1: Twisted Pair Cabling and Distances ......................................................................................................................19

Table 2: IEEE 802.3af Class vs. Power Levels ...................................................................................................................25

Table 3: System Status LED ...............................................................................................................................................26

Table 4: 10/100/1000Base-T Twisted Pair Port LEDs .........................................................................................................27

Table 5: SFP Transceiver Slot LEDs ...................................................................................................................................28

Table 6: Operating Mode LEDs ...........................................................................................................................................28

Table 7: Link LEDs in the Link Test Mode ...........................................................................................................................29

Table 8: “L” Link LEDs in the MissingLink Mode .................................................................................................................30

Table 9: “L” Link LEDs in the Smart MissingLink Mode .......................................................................................................30

Table 10: Components in the Shipping Container ...............................................................................................................41

Table 11: DIP Switch Settings .............................................................................................................................................44

Table 12: MDI Pin Signals (10 or 100 Mbps) .......................................................................................................................60

Table 13: MDI-X Pin Signals (10 or 100 Mbps) ...................................................................................................................61

Table 14: Pin Signals - 1000 Mbps ......................................................................................................................................61

9

Tables

10

Preface

This guide contains the installation instructions for the AT-PC2002/POE
Gigabit Ethernet Media Converter. In this guide you’ll learn about the
features of the product and how to install the unit.

This preface contains the following sections:

 “Where to Find Web-based Guides” on page 12

 “Contacting Allied Telesis” on page 13

11

Preface

Where to Find Web-based Guides

The installation and user guides for all of the Allied Telesis products are
available for viewing in portable document format (PDF) from our web site
at www.alliedtelesis.com.

12

AT-PC2002/POE Media Converter Installation Guide

Contacting Allied Telesis

This section provides Allied Telesis contact information for technical
support and for sales and corporate information.

Online Support You can request technical support online from the Allied Telesis

Knowledge Base at www.alliedtelesis.com/support/kb.aspx. You can
submit questions to our technical support staff from the Knowledge Base
and review answers to previously asked questions.

Email and
Telephone

Support

Returning

Products

Sales and

Corporate

Information

Warranty The AT-PC2002/POE Media Converter has a Five Year Warranty. All

Management

Software Updates

For Technical Support via email or telephone, refer to the Allied Telesis
web site at www.alliedtelesis.com. Select your country from the list on
the web site and then select the appropriate tab.

Products for return or repair must be assigned Return Materials
Authorization (RMA) numbers. A product sent to Allied Telesis without an
RMA number will be returned to the sender at the sender’s expense.

To obtain an RMA number, contact the Allied Telesis Technical Support
group at www.alliedtelesis.com/support/rma.aspx.

You can contact Allied Telesis for sales or corporate information at our
web site at www.alliedtelesis.com.

Allied Telesis warranties are subject to the terms and conditions set out in
the Allied Telesis Limited Warranties on our web site at
www.alliedtelesis.com/warranty.

New releases of the management software for our managed products are
available from the following Internet sites:

 Allied Telesis web site: www.alliedtelesis.com

 Allied Telesis FTP server: ftp://ftp.alliedtelesis.com

If the FTP server prompts you to log on, enter “anonymous” as the user
name and your email address as the password.

The AT-PC2002/POE Media Converter is not a managed product.

13

Preface

14

Chapter 1

Overview

The AT-PC2002/POE Media Converter is a simple and reliable way to
connect Fast or Gigabit Ethernet devices across large geographical
distances with fiber optic cable. The unit has one 10/100/1000Base-T
twisted pair port for a local connection and one slot for a fiber optic
100Base-FX or 1000Base-X SFP module. The product features Power
over Ethernet (PoE) on the twisted pair port for support of a Powered
Device (PD), such as a wireless access point or a Voice over Internet
Protocol (VoIP) telephone.

This unmanaged product is suitable for the central office or a remote site
and can be installed on a table or a wall. LEDs on the front panel display
the general status of the unit and the ports, and DIP switches on the back
panel let you configure the port settings.

The product features low latency to minimize the impact on network
performance along with cyclic redundancy check (CRC) detection to
prevent the propagation of incomplete or fragmented packets on your
network.

This chapter has these sections:

❒ “Introduction” on page 16

❒ “10/100/1000Base-T Twisted Pair Port” on page 18

❒ “SFP Module Slot” on page 20

❒ “Operating Modes” on page 21

❒ “Power over Ethernet” on page 24

❒ “LEDs” on page 26

❒ “Link LEDs and the Operating Modes” on page 29

❒ “DIP Switches” on page 32

❒ “Network Topologies” on page 33

15

Chapter 1: Overview

Introduction

Figure 1 illustrates the front and back panels of the media converter.

AT-PC2002/POE

Gigabit PoE Bridging Converter

AUTO

NEG

OFF
ON

LINK

ACT

1000

SPEED
(Mbps)

2

100

10
100

1 2 3 4

22 1

PORT

DUPLEX

MODE

HALF
FULL

CLASS 1

LASER PRODUCT

100Base-FX
1000Base-X

100Base-FX
1000Base-X

SFP

LINK

ML

SML

LT

MODE

SFP

10/100/1000Base-T

Auto MDI/MDI-X

ACT
10
100

1000

100-240VAC~

Figure 1. AT-PC2002/POEE Media Converter

The AT-PC2002/POE Media Converter has the features listed here:

❒ One 10/100/1000Base-T twisted pair port featuring:

PWR
PoE
ANeg
FDX

1426

1427

16

– IEEE 802.3u Auto-Negotiation

– IEEE 802.3af Power over Ethernet (PoE) with 15.4 W

of power for a powered device

– Half- or full-duplex mode

– Auto-MDI/MDI-X

– RJ-45 connector

– Back pressure in half-duplex mode at 10 or 100 Mbps

– IEEE 802.3x flow control in full-duplex mode at 10,

100, or 1000 Mbps

❒ One slot for a 100Base-FX or 1000Base-X SFP module

❒ Jumbo Ethernet frames of up to 9,000 bytes in the payload

❒ DIP switches for configuring the ports

AT-PC2002/POE Media Converter Installation Guide

❒ Link Test, MissingLink

❒ LEDs for unit and port status

❒ MAC address table with a storage capacity of 4,000 addresses

❒ Back-to-back and standalone topologies

❒ Transparent to IEEE802.1Q packets

❒ Desktop or wall-mount installation

❒ Internal AC power supply

™

and Smart MissingLink operating modes

17

Chapter 1: Overview

10/100/1000Base-T Twisted Pair Port

The 10/100/1000Base-T twisted pair port is described below:

Type of

Connector

The twisted pair port has an 8-pin RJ-45 connector. The port uses four
pins when operating at 10 or 100 Mbps and all eight pins when operating
at 1000 Mbps. For the port pinout details, refer to “10/100/1000Base-T
Port Pinouts” on page 60.

Port Speed The twisted pair port can operate at 10, 100, or 1000 Mbps. IEEE 802.3u-

compliant, the unit can set the speed of the port automatically with Auto­Negotiation or you can set the speed manually with the DIP switches on
the back panel.

Note

The twisted pair port has to be set to Auto-Negotiation to operate at
1000 Mbps.

Duplex Mode The port can operate in either half- or full-duplex mode. If Auto-Negotiation

is activated on the port, the duplex mode is set automatically. If Auto­Negotiation is disabled, you set the duplex mode manually using the DIP
switches.

Note

In order for the media converter to successfully Auto-Negotiate the
duplex mode of the twisted pair port with an end-node, the link
partner should also be using Auto-Negotiation. Otherwise, a duplex
mode mismatch can occur. While configured for Auto-Negotiation,
port will default to half-duplex if it detects that its link partner is not
using Auto-Negotiation. This will result in a mismatch if the end-node
is operating at a fixed duplex mode of full-duplex.

18

Maximum

Distance

The 10/100/1000Base-T twisted pair port has a maximum operating
distance of 100 meters (328 feet).

AT-PC2002/POE Media Converter Installation Guide

Type of Cabling Table 1 lists the cable specifications for the twisted pair port.

Table 1. Twisted Pair Cabling and Distances

Speed Cable Type

Maximum
Operating

Distance

Auto

MDI/MDI-X

10 Mbps Standard TIA/EIA 568-B-compliant

Category 3 or better shielded or
unshielded cabling with 100 ohm
impedance and a frequency of 16
MHz.

100 Mbps Standard TIA/EIA 568-A-compliant

Category 5 or TIA/EIA 568-B­compliant Enhanced Category 5
(Cat 5e) shielded or unshielded
cabling with 100 ohm impedance
and a frequency of 100 MHz.

1000 Mbps Standard TIA/EIA 568-A-compliant

Category 5 or TIA/EIA 568-B­compliant Enhanced Category 5
(Cat 5e) shielded or unshielded
cabling with 100 ohm impedance
and a frequency of 100 MHz.

The wiring configuration of the twisted pair port is set automatically with
auto-MDI/MDI-X. Consequently, you can use a straight-through twisted
pair cable to connect any type of Ethernet network device to the port. The
auto-MDI/MDI-X feature is always active, even when the Auto- Negotiation
feature is turned off and the speed and duplex mode on the port are set
manually.

100 m (328 ft)

100 m (328 ft)

100 m (328 ft)

19

Chapter 1: Overview

SFP Module Slot

The SFP slot can support one 100Base-FX or 1000Base-X SFP module.
For the list of supported modules, contact your Allied Telesis sales
representative.

20

AT-PC2002/POE Media Converter Installation Guide

Operating Modes

The AT-PC2002/POE Media Converter supports these operating modes:

 “Link Test Mode,” next

 “MissingLink Mode” on page 21

 “Smart MissingLink Mode” on page 22

Link Test Mode Contrary to its name, the Link Test operating mode is not a diagnostic

utility. Rather, this mode simply reflects the states of the links on the ports
on the LinK LEDs. When the media converter is operating in this mode, a
port’s Link LED will be on when the port has a link to a network device and
it will be off when the port does not have a link to a network device.

This operating mode is typically used when the network devices
connected to the ports of the media converter cannot take advantage of
the features of the MissingLink mode, or when you want to use the Link
LEDs to troubleshoot a network problem. This operating mode is also
useful after the installation of the media converter to verify whether or not
the ports on the unit have established links to their network devices.

MissingLink

Mode

The MissingLink mode allows the two ports on the media converter to
share their “link” status with each other. If one of the ports is unable to
establish a link with its network device or loses the link, the operating
mode disables the transmitter on the other port. This action notifies the
network device connected to the port that there is a loss of the link on the
other port. Without the MissingLink mode, a network device connected to a
port would be unaware of a loss of a link on the companion port, because
its link to the media converter would be unaffected. To explain it another
way, the MissingLink mode will not allow a port to form a link with its
network device unless the other port on the media converter can also
establish a link with its device.

When the link is reestablished on a port, the MissingLink mode
automatically reactivates the transmitter on the other port so that the two
port can again forward traffic to each other.

This operating mode is intended to take advantage of the fact that some
network devices, such as managed Fast Ethernet switches, can respond
to the loss of a link on a port by performing a specific action. For example,
the network device might send a trap to a network management station,
and so alert the network administrator of the problem. Or, if the device is
running a spanning tree protocol, it might seek a redundant path to a
disconnected node.

Here is an example of how the MissingLink mode works. Assume that the
two ports on a media converter are connected to two Fast Ethernet
switches, one local and the other remote. Switch 1, the remote switch, is

21