Digital Equipment DEC EtherWORKS LC User manual

FCC ID: AO9-DE100
FCC NOTICE: This device complies with Part 15 of the FCC Rules. Operation is
subject to the following conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that
may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection against harmful interference in a
residential installation.
Any changes or modifications made to this equipment may void the user’s authority
to operate this equipment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does
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:
– Re-orient or relocate the receiving antenna
– Increase the separation between the equipment and 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
The use of unshielded Ethernet cable on ThickWire ports with this equipment is
prohibited due to non-compliance with FCC regulations for a Class B computing
device pursuant to Part 15 of FCC Rules.
BENUTZERHINWEIS: Das DEC EtherWORKS LC-Modul in Verbindung mit IBM
Personalcomputersystemem entsprechen den Funkentstöranforderungen der DBP-
Verfugung 523/69 und VDE0871 Grenzwertklasse B.
This document was prepared using VAX DOCUMENT, Version 2.1.

DECEtherWORKS LC
EthernetController
Owner’sManual
Order Number: EK-DE100-OM. D01
Digital Equipment Corporation
Maynard, Massachusetts

First Edition, 1990, Fourth Edition 1992
The information in this document is subject to change without notice and should
not be construed as a commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any errors that may appear in
this document.
© Digital Equipment Corporation 1990, 1992.
All Rights Reserved.
The following are trademarks of Digital Equipment Corporation: DEC, EtherWORKS,
the DIGITAL logo, ThinWire, and VAX DOCUMENT.
IBM and Personal Computer AT are registered trademarks of International Business
Machines, Inc.
This document was prepared using VAX DOCUMENT, Version 2.1.

Contents
Preface ....................................... vii
1 Installing the LC Board
1.1 Introduction ........................... 1–1
1.2 Preparing Your Computer . . . ............. 1–2
1.3 Selecting the Network Interface ............ 1–4
1.4 Installing the LC Board .................. 1–6
1.5 Running the Power Up Self-Test ........... 1–10
1.6 Connecting to a Network ................. 1–10
1.6.1 Connecting to ThinWire Ethernet . . ..... 1–11
1.6.2 Connecting to ThickWire Ethernet . . ..... 1–12
1.7 Installing the Software .................. 1–12
2 Configuring the LC Board
2.1 Introduction ........................... 2–1
2.2 Default Settings . . . ..................... 2–1
2.3 Sellecting Settings . ..................... 2–4
2.4 Memory Addressing Range and Size Selection
(SW1 - SW4)........................... 2–4
2.5 I/O Address Selection (SW5) . ............. 2–7
2.6 Remote Boot Selection (SW6) . ............. 2–8
2.7 Remote Boot Period Selection (SW7) . . . ..... 2–9
2.8 IRQ Selection (SW8 - SW12) . ............. 2–10
iii

3 Problem Solving
3.1 Fault Isolation by Symptom . . ............. 3–1
3.2 LED Activity .......................... 3–5
3.3 Recovering From Self-Test Errors .......... 3–6
A General Information
A.1 Introduction ........................... A–1
A.2 Physical Description..................... A–1
A.2.1 Functional Components . . ............. A–1
A.2.2 LED.............................. A–2
A.2.3 Environmental Requirements .......... A–2
A.3 System Specifications .................... A–2
B Installing an Option ROM
B.1 Introduction ........................... B–1
B.2 ROM Installation Procedure . ............. B–1
Figures
1DEC EtherWORKS LC Product Kit
(Digital PN DE100-AA) . . ............. ix
1–1 Removing the System Unit Cover . . ..... 1–3
1–2 Selecting the Network Interface . . . ..... 1–5
1–3 Removing the Slot Cover . ............. 1–7
1–4 Installing the DEC EtherWORKS LC
Board ............................. 1–8
1–5 Replacing the Screws and Cover . . . ..... 1–9
1–6 Connecting to a ThinWire Network . ..... 1–11
1–7 Connecting to a ThickWire Network ..... 1–12
2–1 LC Board Switch Pack . . ............. 2–3
2–2 Memory Range C8000 to CFFFF for 32
KB............................... 2–6
2–3 Switch Selecting 200 - 20F I/O Memory . . . 2–7
iv

2–4 Switch Enabling Remote Boot .......... 2–8
2–5 Switch Selecting 150 Seconds for Remote
Boot . ............................. 2–9
2–6 Switch Selecting IRQ3 . . . ............. 2–11
B–1 DEC EtherWORKS LC ROM
Installation . . . ..................... B–2
Tables
1–1 Setting the Shunt Connector ........... 1–4
2–1 Switch Pack Default Settings ........... 2–2
2–2 Switch Settings and Memory Address
Ranges ........................... 2–5
2–3 Interrupt Request Line Switches . . . ..... 2–10
3–1 Fault Isolation by Symptom ............ 3–1
3–2 LED Activity . . ..................... 3–5
3–3 Self-Test Error Codes ................. 3–6
A–1 System Specifications ................. A–2
v

Preface
The DEC EtherWORKS LC Ethernet Controller is a personal
computer bus adapter that enables you to integrate various IBM
/PC/XT/AT or compatible personal computers into a network using
either ThickWire or ThinWire Ethernet cables.
This manual describes how to install and configure the LC board.
Using the manual, you should be able to prepare an IBM/PC/XT/AT or
compatible personal computer and an LC board for use on an Ethernet
network.
You do not need to know a lot about computers to install the LC board.
You need to understand the basic concepts and uses of Ethernet
networks, and be familiar with personal computers. For more
information on compatibility of the LC board with your computer,
see your system administrator.
This manual is organized as follows:
• Chapter 1 contains installation instructions.
• Chapter 2 explains board configuration.
• Chapter 3 contains problem solving information.
• Appendix A describes the hardware and software features.
• Appendix B provides a ROM installation procedure.
vii

The conventions used in this manual are described in the next table.
Convention Meaning
CAUTION Provides information to prevent damage to
equipment.
NOTE Provides general information.
PN Part number.
! A number in a circle in text refers to the
corresponding number in an accompanying
illustration.
Product Kit Contents
Before you install an LC board, be sure you have the following
components, shown in Figure 1.
• The DEC EtherWORKS LC Board ! , packaged in an anti-static
bag "
• Owner’s manual #
• T-Connector $
• Installation diskette (5¼ inch) %
• Installation micro-diskette (3½ inch) &
Note
If your LC board does not have a ROM as shown in '
Figure 1, refer to Appendix B.
viii

Figure 1 DEC EtherWORKS LC Product Kit (Digital PN DE100-AA)
LJ-02539-TI0
7
2
6
5
43
1
7
CAUTION
Static electricity can damage printed circuit boards and chips.
A grounded wrist strap and grounded work-surface-to-earth
ground should be used when handling these components.
ix

1
Installing the LC Board
1.1 Introduction
This chapter describes how to install an LC board into an
IBM/PC/XT/AT or compatible personal computer. The only tool you
need is a flat-head screwdriver.
After you install the board, you need to use the installation diskette
to access information about the software. The diskette size (5¼ or 3½)
you use depends on your computer.
1–1

1.2 Preparing Your Computer
Before you install the LC board, you need to prepare your computer
as described in the next procedure. The illustrations show an IBM PC
personal computer, however, you can use the same procedure for other
PCs with only minor modifications.
1. Remove any diskette from the diskette drive.
2. Set all power switches to O (off).
3. Unplug the power cord from the wall outlet.
4. Disconnect all cables from the rear of the system unit.
5. Remove the screws from the rear of the system unit (Figure 1–1).
6. Slide the cover toward the front of the system unit until the cover
is free.
Note
The LC board has a switch pack that lets you determine
how the board operates. This switch pack is already set to
correspond to the needs of most customers (default settings).
If the settings do not meet your requirements, you need to
change them on the board (see Chapter 2).
Note
If the board is set to use an interrupt request line, base
memory address, or I/O address that another option board
uses, your computer or other boards may not operate correctly
when you boot the system. To test the board with the default
settings, you may need to remove all other option boards from
the computer.
1–2

Figure 1–1 Removing the System Unit Cover
LJ-00583-TI0
1–3

1.3 Selecting the Network Interface
The LC board has a shunt connector ( ! Figure 1–2) that lets
you determine how the board interfaces with the network—either
ThinWire or ThickWire Ethernet networks. The board is shipped with
the setting preselected for the ThinWire Ethernet network.
You may need to change the shunt connector setting before you install
the board in your computer.
Table 1–1 summarizes the settings and Figure 1–2 shows the
settings.
Table 1–1 Setting the Shunt Connector
If You Want To ... Then ...
Connect to a ThinWire Ethernet
network "
Leave the shunt connector in the position
connecting pin rows 2 and 3 (default
setting).
Connect to a ThickWire Ethernet
network #
Move the shunt connector to connect pin
rows 1 and 2.
CAUTION
Static electricity can damage printed circuit boards and chips.
A grounded wrist strap and grounded work-surface-to-earth
ground should be used when handling these components.
1–4

Figure 1–2 Selecting the Network Interface
LJ-00584-TI0
2
THINWIRE
1
2
3
THICKWIRE
31
2
3
1
1–5

1.4 Installing the LC Board
Install the LC board using the next procedure.
1. Remove the option slot cover from the slot you plan to use.
Remove the screw from an available option slot on the rear panel
insert. Save the screw for later use.
Caution
For safe operation, ensure that there are no missing slot
covers when you complete the installation.
1–6

Figure 1–3 Removing the Slot Cover
LJ-00462-TI0
1–7

2. Place the LC board in the option slot.
Tip the board down and toward the rear of the system box to allow
the BNC connector on the mounting bracket to clear the opening
in the rear of the system unit (Figure 1–4).
3. Firmly press the board into place until it is securely seated.
Be sure the BNC connector is centered in the opening.
4. Replace the screw on the slot cover.
Figure 1–4 Installing the DEC EtherWORKS LC Board
LJ-02542-TI0
1–8

5. Replace the system unit cover.
a. Slide the cover toward the rear of the system unit.
b. Replace the screws (Figure 1–5) at the rear of the system
unit.
Figure 1–5 Replacing the Screws and Cover
LJ-00587-TI0
6. Plug the keyboard connector into the rear of the system unit and
connect the cables.
a. Connect any option cables and the monitor cable to the rear of
the system unit.
b. Connect the power cable to the rear of the system unit, then
plug the other end into the wall outlet.
1–9

1.5 Running the Power Up Self-Test
A power up self-test runs automatically each time your turn on or
reset your computer.
When the self-test completes successfully, the screen displays LC
board configuration information, and then the system prompt appears.
If the self-test is unsuccessful, an error code, such as DE100 88,
appears on the screen during the restart process, indicating that
a self-test error has occurred. Note the error code and refer to
Section 3.2.
1.6 Connecting to a Network
Depending on how you set the shunt connect in Section 1.3, use one
of the following procedures to connect your system to the network.
For ThinWire Ethernet, refer to Section 1.6.1; for ThickWire Ethernet,
refer to Section 1.6.2.
1–10

1.6.1 Connecting to ThinWire Ethernet
Connect the board to ThinWire Ethernet by attaching the T-Connector
to the ThinWire Ethernet connector.
Push the connector nut of the T-Connector onto the BNC connector on
the bottom of the board mounting bracket, then turn the nut clockwise
until it locks into place (Figure 1–6).
Figure 1–6 Connecting to a ThinWire Network
LJ-02541-TI0
1–11