        Installing  Microsoft Windows for Workgroups drivers for
            HP 27247B EtherTwist PC LAN Adapter/16 TP Plus 
            HP 27252A EtherTwist PC LAN Adapter/16 TL Plus.

Microsoft Windows for Workgroups network adapter setup uses a file
OEMSETUP.INF to determine the driver information for the HP EtherTwist
LAN adapter installed in your computer.  The OEMSETUP.INF file and
the driver file, HPLANP.DOS are located in the \WFWG directory of this
Support Disk.  For the rest of this document, "HP/16 Plus" will be used
to represent either of the HP EtherTwist LAN Adapter/16 Plus products
(HP 27247B or HP 27252A).

To install the HP/16 Plus and its Windows for Workgroup driver, follow the
instrcutions below:

1.  Install the HP/16 Plus into the computer.

    If you are installing the HP/16 Plus in an EISA computer, run the
    computer's EISA configuration utility first before installing the
    HP/16 Plus.  See "Note for EISA Computers" at the end of this file for
    directions.

    Follow the HP/16 Plus Installation Guide and the computer documentation
    for the correct procedure to install an I/O adapter into the computer.
    Ensure that power has been disconnected from the computer before opening
    the computer's case.


2.  Configure and test the HP/16 Plus.

    Reconnect power to the computer and boot DOS.  Run the HP configurator
    on the HP Support Disk.  For example, if the Support Disk is in floppy
    drive A, execute the following commands at the DOS prompt:

        A:
        HPLANSET

    Select "Auto Configuration" to let HPLANSET choose available I/O
    Address Range, and Interrupt Channel values.  Write down these
    values for later use.

    NOTE: Auto configuration does not work if more than one HP/16 Plus is
          installed.  See the HP/16 Plus guide section "Configuring Multiple
          Adapters in the Same Computer" for the correct procedure.

    Select "Card Test" to verify the adapter.  After it passes, select
    "Save configuration to card" and then "Exit program".

    Connect the LAN cable to the HP/16 Plus.


3.  Install the Microsoft Windows for Workgroups SETUP utility.

    Locate the Microsoft Windows for Workgroups Getting Started manual
    and the Microsoft diskette labeled "Disk 1 - Setup".

    Insert the Microsoft diskette labeled "Disk 1 - Setup" into the floppy
    drive.  For example, if the diskette is in drive A, then execute these
    DOS commands:

        A:
        SETUP

    Follow the instructions on each window to install Windows for
    Workgroups.  One of the last steps in the installation is selecting
    the network adapter driver.
    
    NOTE: To add the network driver after Microsoft Windows for Workgroups
          has been installed, select "Network" icon within the "Control
          Panel" group.  When "Network Settings" window appears, select
          "Adapter" icon and then the "Add" button to start the process
          of adding the LAN Adapter/16 Plus network card into your
          Microsoft Windows for Workgroups environment.
    

4.  Select the network adapter driver.

    When the "Install New Network Adapter" window appears, use the arrow
    keys to highlight the line:

        Unlisted or Updated Network Adapter

    Press the ENTER key to select this item.

    When the "Install Driver" window appears, insert the HP Support Disk
    into floppy drive and enter the path name at the prompt. For example,
    if the diskette is in floppy drive A, then enter:

        A:\WFWG

    When "Install New Network Adapter" window appears with the lines:

        HP EtherTwist Adapter/16 Plus TL (27252)
        HP EtherTwist Adapter/16 Plus TP (27247B)

    NOTE: Windows for Workgroups 3.1 has a defect which sometimes
	  prevents these lines from being displayed when attempting to
	  add a card to an existing Windows for Workgroups installation.
	  To correct this problem, remove the files OEMx.INF (where 'x'
	  is one or two digits) from the \WINDOWS\SYSTEM directory.

    Use the arrow key to highlight the line indicating which HP/16 Plus
    adapter is installed and press the ENTER key to select it.

    Follow the prompts to alternatively insert Windows for Workgroups
    diskettes and the HP Support Disk.  Make sure to enter the the
    proper path name whenever swapping to another diskette.  For
    example, if the HP Support Disk is in floppy drive A, enter the
    following path at the prompt:

        A:\WFWG
    
    Always specify the root directory of any Microsoft Windows for Workgroups
    diskettes.  For example, if a Windows for Workgroups diskette is in
    floppy drive A, enter the following path at the prompt:

        A:\


5.  Optionally, edit parameters to override HP/16 Plus configuration.

    The next screen allows the driver to override the configuration 
    saved in the adapter by HPLANSET in step 2.  The HP/16 Plus driver
    is automatically self-configuring by default but can be overridden by
    parameters in the "Advanced" menu.  All parameters in the Advanced
    menu are optional (Not present).  See "Note on Advanced Parameters"
    below before altering any parameter.
    
    Select "OK" button to install the HP/16 Plus driver into Windows for
    Workgroup environment.


6.  Finish installation of Windows for Workgroups.

    At this point, all the steps required for the installation of network 
    driver are done.  Select the "Continue" button to proceed with the
    Windows for Workgroup Setup program until the complete setup procedure
    is finished.

    NOTE:  Select the "OK" or "Close" buttons to complete any changes when
           using Adapter menus under the Control Panel's Network Settings.

    The installation and/or changes of network configuration will not take 
    effect until the computer is rebooted.



Advanced Parameter Definitions
==============================

Below is an explanation of each advanced parameter HP/16 Plus setup menu.

All parameters have default values.  A parameter need not be present if 
its default is satisfactory.


INTERRUPT (IRQ)
     range:   3,4,5,6,7,9,10,11,12,15
     default: read from adapter

   If present, it indicates which interrupt channel the driver should
   configure the adapter to generate interrupts.  The driver will override
   the interrupt channel configured by HPLANSET in step 2 until the computer
   is rebooted.


BASE I/O ADDRESS
     range:   0x100, 0x120, 0x140, 0x160, 0x180, 0x1A0, 0x1C0, 0x1E0
              0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0]
              0x300, 0x320, 0x340, 0x360, 0x380, 0x3A0, 0x3C0, 0x3E0]
     default: search all addresses

   If present, indicates the base I/O address (ie. the first address in 
   HPLANSET I/O Address Range) configured on the adapter.  If the adapter is
   not at the base I/O address, the driver will exit with an error.
   
   If more than one HP/16 Plus adapter is installed in the computer, this
   parameter must be specified under each HP/16 Plus NIF section.


MAXIMUM TRANSMIT PACKETS QUEUED IN ADAPTER MEMORY
     range:   2-20
     default: 8 

   If present, this controls how the adapter memory is partitioned into
   into a transmit queue and a receive ring buffer.  The parameter value
   specifies the number of full-sized transmit packets that can be
   simultaneously stored in the adapter's transmit queue.  Each transmit
   packet consumes 1536 bytes.  The remaining adapter memory is used as a
   receive ring buffer.

   Both of the HP/16 Plus adapters (HP 27247B and HP 27252A) have 32 Kbytes
   (32K X 8) of memory.

   For example, if a HP/16 Plus were configured with the default 8, 
   12288 (8 * 1536) bytes would be allocated to the transmit queue and
   20480 (32768 - 12280) would be allocated for the receive ring buffer.


MAXIMUM MULTICAST ADDRESSES
     range:   1-50
     default: 5

   If present, this controls the maximum number of multicast addresses
   that can be simultaneously stored by the driver.  Each address consumes
   16 bytes of computer memory.


MAXIMUM TRANSMIT PACKETS QUEUED IN DRIVER
     range:   1-10
     default: 2

   Occasionally the HPLANP driver will put a transmit packet in a software
   queue before sending it to the adapter's transmit queue.  This parameter,
   if present, controls the number of packets that can simultaneously be
   stored in the software queue.  Each queue entry consumes 146 bytes of
   computer memory.


MAXIMUM NESTING OF INDICATION COMPLETES
     range:  1-4
     default 1

   If present, this controls the interrupt nesting depth of the driver.
   The value is the number of outstanding NDIS Indication Complete calls
   that the driver will allow.  When the limit is reached the driver
   will cease processing receive indications until an outstanding
   Indication Complete has returned.  Higher values will use greater
   amounts of stack space.


USE AUI CONNECTOR INSTEAD OF TWISTER PAIR CONNECTOR (for 27247B)
USE AUI CONNECTOR INSTEAD OF THINLAN (BNC) CONNECTOR (for 27252A)
     range:   yes, no
     default: n/a

   If present, this controls which of the adapter's LAN connectors is used.
   A value of 'YES' forces the 15-pin DIX (AUI) connector to be used. 
   A value of 'NO' forces the native LAN connector on the adapter to be used.  
   On the HP 27247B, the native connector is an RJ-45 twisted-pair connector.  
   On the HP 27252B the native connector is a BNC connector for thin LAN.
   The driver will override the LAN Connector configured by HPLANSET in step
   2 until the computer is rebooted.

   When this parameter is not present, the driver will use the value 
   configured on the adapter by the HPLANSET utility.  HPLANSET can specify
   automatic selection (the default), or identify a specific connector to
   be used.  Run HPLANSET to view or modify the HP/16 Plus's configuration.



Note for EISA Computers
=======================
Run the EISA configuration utility supplied with the computer to select
values for the two HP/16 Plus resources:  I/O Address Range and Interrupt.
The EISA utility will ensure that resources allocated to the HP/16 Plus will
not be given to other adapters.

The EISA configuration files for the HP/16 Plus reside in the root directory
on the HP Support Disk.  Depending the EISA configuration utility supplied
with the computer there may be a prompt to insert a vendor diskette (the HP
Support Disk), or the configuration files may have to be copied to the
directory or floppy where the EISA configuration utility expects them.  

Below are directions for using the EISA utility to select resources for
the HP/16 Plus:

A.  Run the EISA configuration utility supplied with the computer.
    Follow the procedure to add a new card to the computer.


B.  Select the proper configuration from the selections displayed:

    !HWP1832.CFG  HP EtherTwist PC LAN Adapter/16 TP Plus (27247B)
    !HWP18A0.CFG  HP EtherTwist PC LAN Adapter/16 TL Plus (27252A)

    Note: If the HP/16 Plus selections are not displayed and the EISA
          configuration utility did not prompt for the vendor diskette
          (the HP Support Disk), exit the EISA configuration utility.
          Copy the HP EISA configuration files to the directory or
          diskette containing the EISA configuration utility.  For example,
          if the HP Support Disk is in drive A, execute the following
          command:

             COPY A:*.CFG
    
          Then restart the EISA configuration process from step A.


C.  Use the EISA utility to view the adapter configuration details.

    If the "I/O Address Range" is not "300-31Fh (Factory Default)",
    see "Note on Resolving I/O Address Range Conflicts" below.


D.  Configure Boot ROM Address, if needed.

    If a Boot ROM is to be installed on the adapter, select an address range
    from the choices presented under the "Boot ROM" parameter.  Write down
    the selction for use in step two.


E.  Save the configuration and turn off power to the computer when
    instructed by the EISA utility.

            +--------------------------------------------+
            | Continue with step one of the instructions |
            +--------------------------------------------+




Note on Resolving I/O Address Range Conflicts
=============================================
If any of the computer's adapters, including any other LAN adapters, are
using I/O addresses in the same I/O Address Range as the HP/16 Plus factory
default (300-31Fh), HPLANSET will not be able to find the HP/16 Plus.

There are two methods to complete the installation:
    1) Remove the adapter using I/O Address Range 300-31Fh.
       Install the HP/16 Plus and run HPLANSET.
       Use "Manual Configuration" to select another I/O Address Range.  
       Save the configuration to the HP/16 Plus.
       Reinstall the conflicting adapter.
or,
   2)  Install the HP/16 Plus in another computer and run HPLANSET.
       Use "Manual Configuration" to select another I/O Address Range.  
       Save the configuration to the HP/16 Plus.
       Remove the HP/16 Plus from the computer.
       Install the HP/16 Plus in the original computer.

