# PMC-8246

Dual-Gigabit Ethernet

PCI-X PMC Module with Failover Function

User's Manual

Manual Rev.: 2.10

Revision Date: July 2, 2008

Part No: 50-13058-1000

![Circular black-and-white recycling symbol with three white arrows forming a triangle (no text or symbols)](.pmc-8246-50-13058-1000-210/b3c6a92dd906f7c09fc83314c85d2c9cce80416115624b148dbf6faa6f84cd4a.jpg)

Recycled Paper

# Revision History

<table><tr><td>Revision</td><td>Release Date</td><td>Description of Change(s)</td></tr><tr><td>2.00</td><td>2008/04/10</td><td>Initial Release</td></tr><tr><td>2.10</td><td>2008/07/02</td><td>Correct Block Diagram, Card Panel drawing, LAN LED description and def&#x27;n, OS support, Control Switch pin description, DOS Utilities list. Remove WDT Library Installation. Correct address, remove warranty section.</td></tr></table>

# Preface

# Copyright 2008 ADLINK Technology Inc.

This document contains proprietary information protected by copyright. All rights are reserved. No part of this manual may be reproduced by any mechanical, electronic, or other means in any form without prior written permission of the manufacturer.

# Disclaimer

The information in this document is subject to change without prior notice in order to improve reliability, design, and function and does not represent a commitment on the part of the manufacturer. In no event will the manufacturer be liable for direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the product or documentation, even if advised of the possibility of such damages.

# Environmental Responsibility

ADLINK is committed to fulfill its social responsibility to global environmental preservation through compliance with the European Union's Restriction of Hazardous Substances (RoHS) directive and Waste Electrical and Electronic Equipment (WEEE) directive. Environmental protection is a top priority for ADLINK. We have enforced measures to ensure that our products, manufacturing processes, components, and raw materials have as little impact on the environment as possible. When products are at their end of life, our customers are encouraged to dispose of them in accordance with the product disposal and/or recovery programs prescribed by their nation or company.

# Trademarks

Product names mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.

# Using this Manual

# Audience and Scope

The PMC-8246 User's Manual is intended for hardware technicians and systems operators with knowledge of installing, configuring and operating industrial grade PMC modules.

# Manual Organization

This manual is organized as follows:

Preface: Presents important copyright notifications, disclaimers, trademarks, and associated information on the proper understanding and usage of this document and its associated product(s).

Chapter 1, Introduction: Introduces the PMC-8246, its features, block diagrams, and package contents.

Chapter 2, Hardware Information: Presents layout information, technical drawings, jumper settings and configuration.

Chapter 3, Programming Information: Illustrates bypass control signals and access to PCI controller signals and software defined pins.

Chapter 4, GbE Driver Installation: Describes LAN driver installation for the onboard Ethernet controller.

Important Safety Instructions: Presents safety instructions all users must follow for the proper setup, installation and usage of equipment and/or software.

Getting Service: Contact information for ADLINK's worldwide offices.

# Conventions

Take note of the following conventions used throughout this manual to make sure that users perform certain tasks and instructions properly.

![The image displays a white icon resembling a piece of paper with a folded top-right corner and faint horizontal lines. A large, bold red checkmark is centered over the document.](.pmc-8246-50-13058-1000-210/e8ff683882631fce84704bcfa155b0071777947b957cb570a91885ef8319d2ee.jpg)
NOTE:

Additional information, aids, and tips that help users perform tasks.

![A yellow triangular warning sign with a black border and a large black exclamation point in the center.](.pmc-8246-50-13058-1000-210/b7c256731265da39aab607790603602218954f7bbdb87da18372bf46b208c87c.jpg)
CAUTION:

Information to prevent minor physical injury, component damage, data loss, and/or program corruption when trying to complete a task.

![The image displays a red triangular warning sign containing a large white exclamation mark centered within it.](.pmc-8246-50-13058-1000-210/65d4de95505db6d73060b622d7b65281a49b78941c9b53ad166174b1d442a338.jpg)
WARNING:

Information to prevent serious physical injury, component damage, data loss, and/or program corruption when trying to complete a specific task.

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# Table of Contents

# PMC-8246......i

# Revision History...... ii

# Preface .... iii

# Table of Contents...... vii

# List of Figures ix

# List of Tables.... xi

# 1 Introduction ...... 1

1.1 Block Diagram 1
1.2 Features.... 2
1.3 Specifications.... 2
1.4 Communication States.... 5
1.5 WDT & Bypass Control Logic 5

# 2 Hardware Information 7

2.1 Card Panel.... 7
2.2 Card Layout 8
2.3 Gigabit Ethernet Connectors 9
2.4 Control Switch.... 10

# 3 Programming Information 11

3.1 SDP Register 11
3.2 Bypass Control Priority 13
3.3 DOS Utilities for Evaluation - Utilities List 14
3.4 WDT Library Installation for Windows 2000 & XP ...... 15

4 GbE Driver Installation 17

Important Safety Instructions.... 19

Getting Service 21

# List of Figures

Figure 1-1: Communication States: Normal....5
Figure 1-2: Communication States: Bypass....5
Figure 1-3: WDT & Bypass Control Logic 6
Figure 2-1: LAN Layout, Pin & Signal Descriptions....9
Figure 2-2: Control Switch (SWX1) & Pin Descriptions.... 10
Figure 3-1: WDT & Bypass Control Logic 11

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# List of Tables

Table 2-1: LED Definitions for LAN1/LAN2 (CN2/CN3)....9

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# 1 Introduction

PMC-8246 is a high performance 2-port Gigabit Ethernet (GbE) PCI-X PMC module providing bypass capability, which can connect GbE signals on the two GbE connectors while the system is powered down or under software halt.

# 1.1 Block Diagram

![Based on the provided block diagram, here are the labeled blocks and their connections:\n\n**Labeled Blocks:**\n*   **PCI-X Bus**\n*   **82546GB Dual GbE**\n*   **SDP (GPIO)**\n*   **Transformer** (two instances)\n*   **Relay Array**\n*   **RJ-45** (two instances)\n*   **GbE #1**\n*   **GbE #2**\n*   **WDT & Bypass Control Logic Circuit**\n*   **Relay Drivers**\n*   **Control Switch** (labeled with '1 2 3 4' and 'ON')\n*   **Status Feedback**\n\n**Connections:**\n*   **PCI-X Bus** connects bidirectionally to **82546GB Dual GbE**.\n*   **82546GB Dual GbE** connects bidirectionally to the two **Transformer** blocks.\n*   The **Transformer** blocks connect bidirectionally to the **Relay Array**. Inside the **Relay Array**, there are dotted lines and a curved arrow indicating switching paths.\n*   The **Relay Array** connects bidirectionally to the two **RJ-45** blocks. The top connection is labeled **GbE #1** and the bottom is labeled **GbE #2**.\n*   A thick arrow labeled **Status Feedback** points upward into the **SDP (GPIO)** block.\n*   A thick arrow points from the **SDP (GPIO)** area to the **WDT & Bypass Control Logic Circuit**.\n*   **WDT & Bypass Control Logic Circuit** connects to **Relay Drivers**.\n*   **Relay Drivers** connects upward to the **Relay Array**.\n*   The **Control Switch** connects upward to the **WDT & Bypass Control Logic Circuit**.](.pmc-8246-50-13058-1000-210/96c6ef92a91b7d9cb43d1a506141da568c836f329a8ae9e590259ce5908c79d5.jpg)

The PMC-8246 is based on the Intel 82546GB dual port Gigabit Ethernet controller. The Intel 82546GB is a highly integrated chip, includes Ethernet MAC, PHY, and provides PCI-X 133MHz capability. Please refer to the Intel 82546GB datasheet for more information on the GbE ports.

The PMC-8246's bypass capability uses a mechanical relay array to control the physical routing of the GbE signals. There are two communications states for the GbE signal routing: 1) Normal State, 2) Bypass State. Please refer to section 1.4 for block diagrams of the two states.

Watchdog timer (WDT) and bypass control logic circuits are used to control the relay and communication states. The programmer can control those functions via the Software Definable Pins (SDP) on the Intel 82546GB by programming its registers. Please refer to section 1.5 for a block diagram of the bypass control circuits.

# 1.2 Features

▶ Dual Gigabit Ethernet Ports
▶ Supports up to PCI-X 133Mhz
▶ Bypass capability during system power-off or software halt
▶ Software programmable bypass control
▶ Programmable watchdog timer, WDT status read-back
Intel Boot Agent BIOS
▶ Low-profile bracket available for OEM requirements

# 1.3 Specifications

▶ PCI bus architecture

▶ Bus Type: PCI/PCI-X
▶ Bus Width: 32- or 64-bit
▶ Bus Speed: 33/66/100/133 MHz
▷ Interrupt Level: INTA
Data Transfer Mode: Bus-master DMA
▷ PCI Voltage: 3.3V or 5V universal

▶ Ethernet Controller

Intel 82546 Gigabit Ethernet Controller, Dual GbE ports
▷ Data rates supported (per port): 10,100,1000Mbps
▷ IEEE Standard/Network Topology: 10BASE-T, 100BASE-TX, 1000BASE-T
▷ IEEE 802.3ab compliant

# ▶ Ethernet Ports

▷ Connector: Two RJ-45
▷ Wiring: Cat-5, 4-pair
▶ Cable Distance: Maximum 100 meters (normal mode) or 40 meters (bypass mode)

# ▶ Bypass Capability and Watchdog Timer

▷ A relay array controls signal routing of the two GbE ports
Normal State: GbE signals are straight-through to GbE controller
▷ Bypass State: GbE signals are connected to another port and bypass the GbE controller
▶ Power off status is Bypass State
Programmable watchdog timer (WDT) can switch relay array to Bypass State during a software halt
▷ WDT time out value is programmable as 1, 2, 4, or 8 seconds by software programmable
WDT time out value is defaulted 8 seconds by hardwired and programmable as 1, 2, 4, or 8 seconds by software.

# ▶ Ethernet LED

For each port, two LEDs for Link/Active indication

# ▶ Boot ROM Feature

▷ LAN Boot ROM: 128KB onboard
▷ Support INTEL Preboot Execution Environment (PXE) for remote boot

# ▶ OS Support:

▷ Microsoft Windows Server 2003 and 2000
▷ Microsoft Windows XP 32- and 64-bit Editions
▷ Windows NT 4.0
▷ Linux 2.4.x or later

Note: Please contact ADLINK for other OS availability.

# ▶ Network Management

Intel Boot Agent
▷ ACPI Power Management
▷ PXE 2.0 (Network Management does not support Wake on LAN)

# ▶ Environment

▶ Operating Temperature: 0°C to 60°C
Storage Temperature: -20°C to 80°C
▷ Humidity: 10% to 90% non-condensing

# ▶ Dimensions

▷ 149 mm x 74 mm x 10 mm (L x W x H)

# 1.4 Communication States

The following diagram illustrates the Normal State: where the two GbE signals are straight-through connected to the GbE ports via the transformers. The two GbE ports work independently as normal dual GbE ports.

Figure 1-1: Communication States: Normal
![The diagram displays a central block labeled **82546GB Dual GbE**.\n\n**Connections and Blocks:**\n*   **Left:** A double-headed black arrow connects to the left side of the central block, labeled **PCI-X Bus**.\n*   **Top Path (Blue):**\n    *   A blue double-headed arrow connects the central block to a blue box labeled **Transformer**.\n    *   A blue double-headed arrow connects the **Transformer** to a box labeled **Relay Array** (text is above the box).\n    *   A blue double-headed arrow connects the **Relay Array** box to a blue box labeled **RJ-45**.\n    *   A blue double-headed arrow points right from the **RJ-45** box, labeled **GbE #1**.\n*   **Bottom Path (Red):**\n    *   A red double-headed arrow connects the central block to a red box labeled **Transformer**.\n    *   A red double-headed arrow connects the **Transformer** to the **Relay Array** box.\n    *   A red double-headed arrow connects the **Relay Array** box to a red box labeled **RJ-45**.\n    *   A red double-headed arrow points right from the **RJ-45** box, labeled **GbE #2**.\n\n**Internal Relay Array Details:**\nInside the **Relay Array** box, dotted lines and a curved grey arrow indicate a switching mechanism that routes signals between the upper and lower paths.](.pmc-8246-50-13058-1000-210/936157d2c1138625ffe729a99f8852ad4d24d926f23b7d0810a6022c6eb895df.jpg)

The following diagram shows the Bypass State: where the two GbE signal are cross-over connected to each other so that the Ethernet connection bypasses the computer or the network appliance where this PMC module is installed in.

Figure 1-2: Communication States: Bypass
![The diagram depicts a signal path flowing from left to right through several stages:\n\n**Labeled Blocks:**\n*   **PCI-X Bus**\n*   **82546GB Dual GbE**\n*   **Transformer** (appears twice, stacked vertically)\n*   **Relay Array**\n*   **RJ-45** (appears twice, stacked vertically)\n*   **GbE #1**\n*   **GbE #2**\n\n**Connections:**\n*   **PCI-X Bus** connects to **82546GB Dual GbE** via a thick, black, double-headed arrow pointing left.\n*   **82546GB Dual GbE** connects to the top and bottom **Transformer** blocks via dotted lines.\n*   Each **Transformer** connects to the **Relay Array** via a dotted line with a blue arrow pointing right.\n*   Inside the **Relay Array**, blue arrows indicate a cross-connection (one curved arrow from the bottom input to the top output, and one straight arrow from the top input to the bottom output).\n*   The **Relay Array** connects to each **RJ-45** block via double-headed arrows.\n*   Each **RJ-45** block connects to its respective label (**GbE #1** for the top, **GbE #2** for the bottom) via double-headed arrows.](.pmc-8246-50-13058-1000-210/19e2a02dec741c1d0e6916cfa1320e2235085a1e87c838e7461c727ae4f982e4.jpg)

The relay array is driven by the relay divers which are controlled by the watchdog timer and bypass control logic circuits.

# 1.5 WDT & Bypass Control Logic

The block diagram of the WDT and bypass control logic circuits is as follows:

![Based on the provided block diagram, here are the labeled blocks and their connections:\n\n**Block: 82546GB**\n*   **Internal Labels:** SPDB6, SPDB(0:1), SPDA7, SPDA0, SPDA1, SPDA6, SPDA7.\n*   **Connections:**\n    *   Sends **MODE(0:1)** to the **Bypass Control Logic** block.\n    *   Sends **WDT_EN**, **WDT_RL**, **WDT_VP0**, and **WDT_VP1** to the **WDT** block.\n    *   Receives **Bypass State feedback** (into SPDB6).\n    *   Receives **Time Out status feedback** (into SPDA7).\n\n**Block: WDT**\n*   **Connections:**\n    *   Receives **WDT_EN**, **WDT_RL**, **WDT_VP0**, and **WDT_VP1** from **82546GB**.\n    *   Receives **CLK**.\n    *   Receives **WDTV SEL** from **Bypass Control Logic**.\n    *   Sends **WDT Time Out** to **Bypass Control Logic**.\n\n**Block: Bypass Control Logic**\n*   **Connections:**\n    *   Receives **MODE(0:1)** from **82546GB**.\n    *   Receives **PCI_RESET**.\n    *   Receives **WDT Time Out** from **WDT**.\n    *   Receives **PONSTS**, **BYPASS**, **NORMAL**, and **WDT_DIS** from the **SWX1** block.\n    *   Sends **Bypass State feedback** to **82546GB**.\n    *   Sends **Time Out status feedback** to **82546GB**.\n    *   Sends **WDTV SEL** to **WDT**.\n    *   Outputs to **Control Relay Array**.\n\n**Block: SWX1**\n*   **Connections:**\n    *   Sends **PONSTS**, **BYPASS**, **NORMAL**, and **WDT_DIS** to **Bypass Control Logic**.\n    *   Sends a connection signal to **WDT**.](.pmc-8246-50-13058-1000-210/432e591b6530897a9a20c21a110de699849d324d44b0c70ba2e542d57806a11b.jpg)

Figure 1-3: WDT & Bypass Control Logic

Please refer to Chapter 2 for switch setting definition; Chapter 3 for programming information including the WDT control.

# 2 Hardware Information

# 2.1 Card Panel

![NORMAL\nLNK\nACT\nLNK\nACT](.pmc-8246-50-13058-1000-210/ff41a8209ae0e03c28503d0381e34917f9441e6ebf113883c26c0e7faeef2f00.jpg)

2.2 Card Layout
![CN2\nLED3\nCN3\nLED2\nLED1\nRY6\nRY5\nRY2\nRY1\nRY8\nRY7\nRY4\nRY3\nU6\nU7\nSWX1\nU3\nU2\nU5\n3V KEY](.pmc-8246-50-13058-1000-210/88610bb09f09c44bd621b0715946cc2423841ca1e573aa8df31ce009080e88ff.jpg)

LED1: Normal LED

LED2: LAN 2 LED

LED3: LAN 1 LED

CN2: LAN 1

CN3: LAN 2

RY1-RY8: Relay

U6-U7: Transformer

U2: CPLD

U5: LAN Boot ROM

U3: Intel 82546GB

SWX1: Switch

# 2.3 Gigabit Ethernet Connectors

<table><tr><td>PIN</td><td>LAN1 SIGNAL</td><td>LAN2 SIGNAL</td><td>FUNCTION</td></tr><tr><td>1</td><td>LAN1_TDP1</td><td>LAN2_TDP1</td><td>Transmit Data1 +</td></tr><tr><td>2</td><td>LAN1_TDN1</td><td>LAN2_TDN1</td><td>Transmit Data1 -</td></tr><tr><td>3</td><td>LAN1_RDP2</td><td>LAN2_RDP2</td><td>Receive Data2 +</td></tr><tr><td>4</td><td>LAN1_RDP3</td><td>LAN2_RDP3</td><td>Receive Data3 +</td></tr><tr><td>5</td><td>LAN1_RDN3</td><td>LAN2_RDN3</td><td>Receive Data3 -</td></tr><tr><td>6</td><td>LAN1_RDN2</td><td>LAN2_RDN2</td><td>Receive Data2 +</td></tr><tr><td>7</td><td>LAN1_TDP4</td><td>LAN2_TDP4</td><td>Transmit Data4 +</td></tr><tr><td>8</td><td>LAN1_TDN4</td><td>LAN2_TDN4</td><td>Transmit Data4 -</td></tr></table>

![Pin 1\nPin 2\nPin 6](.pmc-8246-50-13058-1000-210/3b299d8c03a6330287ba817561c22738ff0c1f6871fb5235b108f50faad0631e.jpg)

Figure 2-1: LAN Layout, Pin & Signal Descriptions

<table><tr><td colspan="2">Status</td><td>ACT</td><td>LNK</td></tr><tr><td colspan="2">Network link is not established</td><td>Off</td><td>Off</td></tr><tr><td rowspan="2">10/100/1000 Mbps</td><td>Link</td><td>On</td><td>Off</td></tr><tr><td>Active</td><td>On</td><td>Blinking</td></tr></table>

Table 2-1: LED Definitions for LAN1/LAN2 (CN2/CN3)

# 2.4 Control Switch

The Control Switch (SWX1) is used to enforce Normal and Bypass states as shown below.

![5WX1\nON/OFF Initial Normal/Bypass\nON/OFF Force Bypass/No Enforcement\nON/OFF Force Normal/No Enforcement\nON/OFF Disable MDT/No Enforcement\nQ2 Q4\nRT1 RT3 BC33\n003064 056FE8\nBC13 BC18 BC25 BC31\nR108 R109\nBC37 R50\nBC25 R48\nBC36 R48\nBC26 R47\nBC35 R46\nBC18 R45](.pmc-8246-50-13058-1000-210/f54205b93ff270e6add2482e081f1e91bf2bd18acdf41c4da9d083f84900b1cf.jpg)

Figure 2-2: Control Switch (SWX1) & Pin Descriptions

<table><tr><td>PIN#</td><td>Default</td><td>Status</td><td>Function</td></tr><tr><td rowspan="2">1</td><td rowspan="2">ON</td><td>ON</td><td>Normal State (on startup)</td></tr><tr><td>OFF</td><td>Bypass State (on startup)</td></tr><tr><td rowspan="2">2</td><td rowspan="2">OFF</td><td>ON</td><td>Force relay array to Bypass State</td></tr><tr><td>OFF</td><td>No Enforcement</td></tr><tr><td rowspan="2">3</td><td rowspan="2">OFF</td><td>ON</td><td>Force relay array to Normal State</td></tr><tr><td>OFF</td><td>No Enforcement</td></tr><tr><td rowspan="2">4</td><td rowspan="2">OFF</td><td>ON</td><td>Force WDT disable</td></tr><tr><td>OFF</td><td>No Enforcement</td></tr></table>

# 3 Programming Information

# 3.1 SDP Register

Block Diagram and 82546GB The following block diagram (identical to chapter 1) illustrates the bypass control signals. Programmers need to know how to access the 82546GB on the PMC and its Software Defined Pins (SDP). Please refer to the 82546GB programming document for detailed information.

Figure 3-1: WDT & Bypass Control Logic
![**Blocks:**\n*   82546GB\n*   WDT\n*   Bypass Control Logic\n*   SWX1\n\n**Connections:**\n*   From **82546GB** to **Bypass Control Logic**:\n    *   `SPDB(0:1)` connects via line labeled `MODE(0:1)`.\n*   From **82546GB** to **WDT**:\n    *   `SPDA7` (bottom row) connects via line labeled `WDT_EN`.\n    *   `SPDA0` connects via line labeled `WDT_RL`.\n    *   `SPDA1` connects via line labeled `WDT_VP0`.\n    *   `SPDA6` connects via line labeled `WDT_VP1`.\n    *   External input `CLK`.\n*   From **WDT** to **Bypass Control Logic**:\n    *   `WDT Time Out`.\n*   From **SWX1** to **Bypass Control Logic**:\n    *   `PONSTS`, `BYPASS`, `NORMAL`, `WDT_DIS`.\n*   From **Bypass Control Logic** to **82546GB**:\n    *   `SPDB6` receives connection via line labeled `Bypass State feedback`.\n    *   `SPDA7` (top row) receives connection via line labeled `Time Out status feedback`.\n    *   `PCI_RESET`.\n*   From **Bypass Control Logic** to **WDT**:\n    *   `WDTV SEL`.\n*   From **Bypass Control Logic** (output):\n    *   `Control Relay Array`.](.pmc-8246-50-13058-1000-210/17e7a1905064ace1af4fb4b81679fdd845c87e8103fe6c0267b4b56e9a6ea719.jpg)

# SDP Registers Definition

The bits in SDP registers are all readable and writable. The following table shows the register definition.

<table><tr><td>SPD Bit</td><td>Name</td><td>R/W</td><td>Description</td></tr><tr><td>SDPB0</td><td>MODE0</td><td>RW</td><td rowspan="2">Bypass control mode bit 0 and 1</td></tr><tr><td>SDPB1</td><td>MODE1</td><td>RW</td></tr><tr><td>SDPB6</td><td>Bypass Status</td><td>R</td><td>Bypass status read back0: Bypass1: Normal</td></tr><tr><td>SDPB7</td><td>WDT Status</td><td>R</td><td>WDT status read back0: WDT running or stop1: WDT Time Out</td></tr><tr><td>SDPA0</td><td>WDT_CTRL</td><td>RW</td><td>WDT control bit</td></tr><tr><td>SDPA1</td><td>WDT_RL</td><td>RW</td><td>Reload WDT to avoid timeout</td></tr><tr><td>SDPA6</td><td>WDT_VP0</td><td>RW</td><td>WDT time out value bit 0 and 1</td></tr></table>

# WDT Enable

<table><tr><td>WDT_EN</td><td>Functions</td></tr><tr><td>0</td><td>WDT is disabled.</td></tr><tr><td>1</td><td>WDT is enabled.</td></tr></table>

Power On Default

# Bypass Control Mode

<table><tr><td>MODE0</td><td>MODE1</td><td>Functions</td></tr><tr><td>0</td><td>0</td><td>No enforcement. Set WDT reload from the switch setting WDT_VS[1:0]</td></tr><tr><td>0</td><td>1</td><td>No enforcement. Set WDT reload from the programmable WDT_VP[1:0]</td></tr><tr><td>1</td><td>0</td><td>Disable WDT, enforce relay array inBypass State(1)</td></tr><tr><td>1</td><td>1</td><td>Disable WDT, enforce relay array inNormal State(2)</td></tr></table>

![The image displays a square icon with a black border. Inside the border is a white document or paper icon with a folded top-right corner. Faint gray horizontal lines run across the lower portion of the paper. A large, bold red checkmark is superimposed over the center of the document, angled upwards to the right.](.pmc-8246-50-13058-1000-210/8dec54029b8b65bebfdb797b676f6b12d537ce11fa7f73129ce37ee0ee6bbc7c.jpg)
NOTE:

Note 1: If the relay array is forced to Normal State by settings in the Control Switch (SWX1), then this setting is void.

Note 2: If the relay array is forced to Bypass State by settings in the Control Switch (SWX1), then this setting is void.

# WDT Reload

<table><tr><td>WDT_RL</td><td>Functions</td></tr><tr><td>0 -&gt; 1 -&gt; 0</td><td>Reload WDT to avoid timeout</td></tr></table>

When WDT is reload, the circuit will load the WDT value from either WDT\_VP[1:0] or WDV\_VS[1:0] dependent on the control modes setting.

# WDT Time Out Value Setting

<table><tr><td>WDT_VP1</td><td>WDT_VP0</td><td>WDT time out value</td></tr><tr><td>0</td><td>0</td><td>1 second</td></tr><tr><td>0</td><td>1</td><td>2 seconds</td></tr><tr><td>1</td><td>0</td><td>4 seconds</td></tr><tr><td>1</td><td>1</td><td>8 seconds</td></tr></table>

Power On Default

# 3.2 Bypass Control Priority

The relay array is controlled by reset, WDT time out, bypass control mode bits, and external settings from the header. Please refer to the following block diagram.

![The diagram centers on a rectangular block labeled **Bypass Control Logic**.\n\n**Inputs:**\n*   Three arrows enter from the left side of the central block, labeled **MODE(0:1)**, **PCI_RESET**, and **WDT Time Out**.\n\n**Outputs:**\n*   One arrow exits from the right side of the central block, pointing toward the text **Control Relay**.\n\n**Additional Connections:**\n*   A block labeled **SWX1** is positioned at the bottom right.\n*   Three lines emerge from the top of the **SWX1** block and point upward into the bottom of the **Bypass Control Logic** block.\n*   These three connection lines are labeled **PONSTS**, **BYPASS**, and **NORMAL**.](.pmc-8246-50-13058-1000-210/5382aad65a784f0ffa897f26a033553de7ba568610de4511678c7178defeccf6.jpg)

The control priority is as follows. The setting with higher priority will override the lower priority setting (or status).

<table><tr><td>Bypass Control Priority</td><td>Control source</td></tr><tr><td rowspan="5">Highest</td><td>Reset</td></tr><tr><td>BYPASS state enforcement switch (SW1-2)</td></tr><tr><td>NORMAL state enforcement switch (SW1-3)</td></tr><tr><td>Bypass control mode setting MODE[0:1]</td></tr><tr><td>WDT time out</td></tr></table>

# 3.3 DOS Utilities for Evaluation - Utilities List

Before programming this card, users can evaluate the PMC-8246 bypass capability using the DOS test utility - 8246util.exe:

# 8246util e [x]:

Enable the WDT. Users can determine the time out value by typing the parameter [x]; only 1, 2, 4, or 8 is valid for [x]. If the user does not reload the WDT before time out in 1, 2, 4 or 8 seconds depending on the setting, then the relay array will be switched to the Bypass State. A 'click' can be heard when the relay switches.

# 8246util d:

Disable and stop WDT. The relay array will stay in the same state.

# 8246util w:

Enable WDT and keep reloading WDT. The WDT would keep running unless the program stops running or powers off.

# 8246util n:

Enforce the relay array to Normal State and WDT will be disabled.

# 8246util b:

Enforce the relay array to Bypass State and WDT will be disabled.

# 3.4 WDT Library Installation for Windows 2000 & XP

ADLINK provides a setup program for installing the PMC-8246 WDT library, driver, and sample program under Windows 2000 or XP. Please contact your ADLINK representative for more information.

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# 4 GbE Driver Installation

This chapter describes the LAN driver installation for the Intel 82546GB onboard Ethernet controller. The relevant drivers are located on the ADLINK All-in-One CD:

1. Boot Windows 2000/XP/Windows Server 2003.

2. The driver is included in the driver CD.
Run pro2kxpm.exe under the following directory:
X:\PMC\PMC-8246\Ethernet\Win2kxp

3. On the license agreement - read the license agreement. Click 'I accept the terms in the license agreement' if you agree to continue.

4. Location to Save Files, click Next to save files in folder.

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# Important Safety Instructions

For user safety, please read and follow all instructions, warnings, cautions, and notes marked in this manual and on the associated equipment before handling/operating the equipment.

▶ Read these safety instructions carefully.
- Keep this user’s manual for future reference.
▶ Read the specifications section of this manual for detailed information on the operating environment of this equipment.
▶ When installing/mounting or uninstalling/removing equipment:

▷ Turn off power and unplug any power cords/cables.

▶ To avoid electrical shock and/or damage to equipment:

▷ Keep equipment away from water or liquid sources;
▷ Keep equipment away from high heat or high humidity;
▷ Keep equipment properly ventilated (do not block or cover ventilation openings);

▶ Make sure to use recommended voltage and power source settings;

▶ Always install and operate equipment near an easily accessible electrical socket-outlet;

▷ Secure the power cord (do not place any object on/over the power cord);

▶ Only install/attach and operate equipment on stable surfaces and/or recommended mountings; and,

▷ If the equipment will not be used for long periods of time, turn off and unplug the equipment from its power source.

▶ Never attempt to fix the equipment. Equipment should only be serviced by qualified personnel.
▶ A Lithium-type battery may be provided for uninterrupted, backup or emergency power.

![A yellow triangular warning sign with a black border featuring a black exclamation point in the center. Below the triangle, the text 'CAUTION:' is printed in black capital letters.](.pmc-8246-50-13058-1000-210/6882bbe5b637b839023079990cebcf39ec223706cdf41adf57ec14cc4f62ec67.jpg)

Risk of explosion if battery is replaced with one of an incorrect type. Dispose of used batteries according to their instructions.

▶ Equipment must be serviced by authorized technicians when:

▷ The power cord or plug is damaged;
▷ Liquid has penetrated the equipment;
▷ It has been exposed to high humidity/moisture;
$\triangleright$ It is not functioning or does not function according to the user's manual;
▷ It has been dropped and/or damaged; and/or,
▷ It has an obvious sign of breakage.

# Getting Service

Contact us should you require any service or assistance.

# ADLINK Technology Inc. (Headquarters)

Web Site: http://www.adlinktech.com

Sales & Service: service@adlinktech.com

Telephone No.: +886-2-8226-5877

Fax No.: +886-2-8226-5717

Mailing Address: 9F No. 166 Jian Yi Road, Chungho City, Taipei 235, Taiwan

# ADLINK Technology America Inc.

Sales & Service: info@adlinktech.com

Toll-Free: +1-866-4 ADLINK

Fax No.: +1-949-727-2099

Mailing Address: 8900 Research Drive, Irvine,

CA 92618, USA

# ADLINK Technology Co. Ltd. (Beijing)

Sales & Service: market@adlinktech.com

Telephone No.: +86-10-5885-8666

Fax No.: +86-10-5885-8625

Mailing Address: Rm. 801, Power Creative E, No. 1, B/D

Shang Di East Rd.

Beijing, 100085 China

# ADLINK Technology Co. Ltd. (Shanghai)

Sales & Service: market@adlinktech.com

Telephone No.: +86-21-6495-5210

Fax No.: +86-21-5450-0414

Mailing Address: 4F, Bldg. 39, No.333 Qinjiang Road,

Cao He Jing High-Tech Park

Shanghai, 200233 China

# ADLINK Technology Co. Ltd. (Shenzhen)

Sales & Service: market@adlinktech.com

Telephone No.: +86-755-2643-4858

Fax No.: +86-755-2664-6353

Mailing Address: 2F, C Block, Bld. A1,

Cyber-Tech Zone, Gao Xin Ave. Sec 7,

High-Tech Industrial Park S.,

Shenzhen, 518054 China

# ADLINK Technology Inc. (European Liaison Office)

Sales & Service: emea@adlinktech.com

Telephone No.: +49-211-495-5552

Fax No.: +49-211-495-5557

Mailing Address: Nord Carree 3, 40477

Düsseldorf, Germany

# ADLINK Technology Japan Corp.

Sales & Service: japan@adlinktech.com

Telephone No.: +81-3-4455-3722

Fax No.: +81-3-5333-6040

Mailing Address: Asahiseimei Hatagaya Bld. 8Fl. 1-1-2

Hatagaya Shibuya-ku, Tokyo, Japan

# ADLINK Technology Inc. (South Korea Liaison Office)

Sales & Service: korea@adlinktech.com

Telephone No.: +82-2-2057-0565

Fax No.: +82-2-2057-0563

Mailing Address: #402, Dongsung B/D, 60-12,

Nonhyeon-dong Gangnam-gu,

Seoul, 135-010, South Korea

# ADLINK Technology Singapore Pte. Ltd.

Sales & Service: singapore@adlinktech.com

Telephone No.: +65-6844-2261

Fax No.: +65-6844-2263

Mailing Address: 84 Genting Lane #07-02A,

Cityneon Design Center,

Singapore 349584

# ADLINK Technology Singapore Pte. Ltd. (India Liaison Office)

Sales & Service: india@adlinktech.com

Telephone No.: +91-80-6560-5817

Fax No.: +91-80-2244-3548

Mailing Address: No. 1357, Ground Floor, "Anupama",

Aurobindo Marg JP Nagar (Ph-1)

Bangalor, Karnataka 560078, India
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