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IBM PC NETWORK INTERCONNECTS IBM PERSONAL COMPUTERS
Contents


Announcement Letter Number 184-100 dated August 14, 1984
US - Last Revised on August 14, 1984



Brief Description of Announcement, Charges, and Availability

     The IBM PC Network is a low cost broadband local area network
which allows peer-to-peer communication among IBM Personal Computers,
IBM Portable Personal Computers, IBM Personal Computer XTs, and IBM
Personal Computer ATs in a shared resource environment. The IBM PC
Network includes the IBM PC Network Translator Unit, IBM PC Network
Adapters and IBM PC Network Cabling Components. Programming support
is provided by the IBM PC Network Program. (See Programming
Announcement 284-293).


Customer Letter Section

HIGHLIGHTS
o   Allows IBM Personal Computers to participate in a shared resource
    environment.
o   Provides peer-to-peer communication among IBM Personal Computers.
o   Supports up to 72 IBM Personal Computers within a 1,000-foot
    radius with the IBM PC Network Cabling Components option.
o   Permits up to 32 active sessions per IBM Personal Computer
    attached to the network.
o   Supports a data transmission rate of 2 million bits per second.
o   Supports IBM Personal Computers, IBM Personal Computer XTs, IBM
    Portable Personal Computers, and IBM Personal Computer ATs.
o   Utilizes carrier sense multiple access/collision detect (CSMA/CD)
    protocol.
o   Provides fixed frequency broadband transmission using a single
    CATV cable.
DESCRIPTION
The IBM PC Network is a low cost, broadband, local area network
designed for the IBM Personal Computer family. Its advanced
technology provides a reliable, low maintenance network using
standard 75 ohm coaxial cable (CATV compatible) and standard
broadband components. The network uses carrier sense multiple
access/collision detect (CSMA/CD) protocol to transmit data at 2
million bits per second. The network consists of the IBM PC Network
Translator Unit which provides single channel frequency translation
for the network, IBM PC Network Adapters, which attach IBM Personal
Computers to the network, and IBM PC Network Cabling Components,
which may be used to attach up to 72 IBM Personal Computers within a
1,000-foot radius of the translator unit.
       The IBM PC Network Translator Unit provides fixed frequency
translation for the IBM PC Network. One translator unit is required
for each network.  The translator unit is supplied with a separately
packaged 120-volt transformer which plugs into a standard grounded
electrical outlet.
       The translator unit has a connector assembly for attaching up
to eight IBM Personal Computers within a radius of 200 feet (cable
segments may be purchased separately). The translator also has an
expansion port for attaching the IBM PC Network Base Expander, which
permits attachment of up to 64 additional Personal Computers to the
network, for a total of 72.
       The IBM PC Network Adapter is a feature card that plugs into
each IBM Personal Computer, IBM Personal Computer XT, IBM Portable
Personal Computer, or IBM Personal Computer AT in the network.  It is
supplied with a three-meter (9-foot) attachment cable which can be
connected directly to, or within 200 feet of the IBM PC Network
Translator Unit. The IBM PC Network Cabling Segments are used to
extend the distance up to 200 feet. The adapter is not supported on
the IBM PCjr or the IBM Personal Computer Expansion Unit.
       The adapter contains an Intel 80188 processor, an Intel 82586
network controller, a fixed frequency modem, and network microcode
offloading the network control and interface functions from the
system processor.  The fixed frequency modem operates at 50.75 MHz
transmit frequency and 219 MHz receive frequency for transmission on
a single cable broadband network.
       The network microcode, network basic input/output system
(NETBIOS), which resides in Read Only Memory (ROM), is the basis for
program control of the network. The NETBIOS provides the ability to
create a session and interchange information with another user (name)
on the network, to send and receive peer-to-peer or broadcast
information on the network, to define multiple user names within a
node, and to determine network adapter status and control.
       Multiple names can be associated with each adapter card and
are globally known on the network. This allows easy, dynamic
configuration of the network under operator or application program
control. The NETBIOS supports up to 32 peer-to-peer sessions on each
adapter card.
       The optional IBM PC Network Cabling Components contain a
variety of preassembled wires and connectors that permit installation
of a variety of network topologies. They are designed to extend the
functional capabilities of the network. These cabling components can
be used to increase the maximum number of attached stations from 8 to
72, and to increase the maximum distance of coverage from a radius of
200 feet to a radius of 1,000 feet. The cable component options which
provide for end-to-end connection, include a Base Expander, three
Expansion Kits, and four Cable Segments preassembled from standard
CATV components.  Standard F connectors are used to connect cable
components.
       The IBM PC Network Base Expander is required to grow the
network to more than eight IBM Personal Computers or more than a
200-foot radius from the translator unit. The base expander is a
prerequisite for the attachment of up to eight Short, Medium, or Long
Distance Kits in any combination. Each distance kit can attach up to
eight IBM Personal Computers. In addition, the medium and long
distance kits extend the network by 400 feet and 800 feet,
respectively.  In combination with cabling segments, the short,
medium, and long distance kits can extend the network up to a
1,000-foot radius from the translator unit.
       The specifications for the network components are documented
in the IBM PC Network Technical Reference Manual. This will allow
customers to take full advantage of the broadband capability with
broadband components that are provided by professional CATV and
broadband vendors.
       Notes:
       The translator unit may be used to support up to 255 IBM
Personal Computers within a 1,000-foot radius using a custom cable
installation offered by broadband or CATV vendors.
       The IBM PC Network Adapter may be included in a custom
installed broadband network, not using the IBM PC Network Translator
Unit, in combination with other data, voice, and video services. In
this situation, up to 1,000 IBM Personal Computers equipped with IBM
PC Network Adapters can be connected within a 5-kilometer (3-mile)
radius in a campus environment for communication on an occasional
basis.
PUBLICATIONS
The IBM PC Network Technical Reference Manual
SCHEDULE
Planned availability is October 1984.
TECHNICAL INFORMATION
SPECIFIED OPERATING ENVIRONMENT
HARDWARE REQUIREMENTS: Each IBM Personal Computer, IBM Portable
Personal Computer, IBM Personal Computer XT, or IBM Personal Computer
AT in the network requires its own IBM PC Network Adapter, which
requires one full-sized expansion slot in the system unit.
Each network requires an IBM PC Network Translator Unit, which
supports up to eight IBM Personal Computers.  A 120-volt transformer
is required for the translator unit. The optional IBM PC Network
Cabling Segments can be used to expand the network up to a 200-foot
radius from the translator unit.
       The IBM PC Network Base Expander is required for attachment of
the Short, Medium, or Long Distance Kits.
       The IBM PC Network Short Distance Kit, the IBM PC Network
Medium Distance Kit, or the IBM PC Network Long Distance Kit may
require IBM PC Network Cabling Segments which are available in 25-,
50-, 100-, or 200-foot lengths.
       Some IBM Personal Computers may require a new basic
input/output system (BIOS) module. Only IBM Personal Computer Models
1, 13, 14, 64, and 74 may require updating of the BIOS. If these
models have already had an IBM 5161 Personal Computer Expansion Unit
Model 1 attached they do not need further updating. All other members
of the IBM Personal Computer family and other IBM Personal Computer
models have the new BIOS functions and do not need updating.
       IBM Personal Computers requiring a new BIOS module can be
upgraded using the BIOS Update Kit (#1005).
       To determine which BIOS module is installed in an IBM Personal
Computer, the serial number and place of manufacture may be checked
or the following four statement BASIC program may be keyed in:
    10 DEF SEG=&HF000
    20 FOR X = &HFFF5 TO &HFFFF
    30 PRINT CHR$(PEEK(X));
    40 NEXT
       Entering the RUN command will cause the date to be printed
out. A date of October 27, 1982 or later indicates that the BIOS

Update Kit is not needed. A date of October 26, 1982 or earlier
indicates that a BIOS update must be installed to be able to use the
IBM PC Network Adapter.
       The serial number of an IBM Personal Computer and place of
manufacture are located on the rear of the system unit. IBM Personal
Computers which must be upgraded are those made for domestic use
(U.S. and Canada) with serial number 0300960 or lower.
SOFTWARE REQUIREMENTS: Program support for the IBM PC Network may be
provided by the IBM PC Network Program Part No. (6024195).
SECURITY, AUDITABILITY, AND CONTROL IBM Personal Computers on the IBM
PC Network can be used and managed so as to limit the risk of
unintended modification, destruction, or disclosure of sensitive
data. The customer is responsible for the selection, implementation,
and adequacy of appropriate measures. The customer is also
responsible for the accuracy and integrity of results.
PLANNING INFORMATION
CUSTOMER RESPONSIBILITIES: The customer is responsible for unpacking
and installing the IBM PC Network Adapter and the IBM PC Network
Translator Unit, planning the network configuration, installing the
coaxial cable, and documenting the location and placement of IBM
Personal Computers within the IBM PC Network.
INSTALLABILITY: The IBM PC Network Adapter is installed in one of the
full-sized expansion slots of an IBM Personal Computer, IBM Portable
Personal Computer, IBM Personal Computer XT, or IBM Personal Computer
AT.
Instructions are provided with the IBM PC Network Translator Unit for
installation at the appropriate location in the network.
       The translator unit has the following dimensions:
o   Length - 6.25'
o   Depth - 10.10'
o   Height - 1.75'
       Instructions are provided for installation of each cabling
component.
PACKAGING: The IBM PC Network Translator Unit is packaged in two
cartons. One carton contains the translator unit and connector
assembly. The other contains the transformer and installation
instructions.
The IBM PC Network Adapter is packaged in a single carton which
includes a three-meter (9-foot) connector cable, installation
instructions, problem determination procedures, two diagnostic
diskettes, and warranty information.
       Each of the eight Cabling Components is separately packaged
with applicable installation instructions and warranty information.
LIMITATIONS: The IBM PC Network Adapter is not supported on the IBM
PCjr or the IBM Personal Computer Expansion Unit.
With the IBM PC Network Cabling Components option, the IBM PC Network
Translator Unit can support up to 72 Personal Computers. With a
custom cable installation, not offered by IBM, the translator unit
can support up to 255 Personal Computers.
CHARGES, TERMS, AND CONDITIONS
TERMS AND CONDITIONS Orders for any quantity of IBM PC Network
Translator Units, IBM PC Network Adapters, and IBM PC Network Cabling
Components may be taken by NAD/NMD marketing representatives.
Orders for quantities less than 20 may be taken by the IBM Product
Centers. Each Product Center will accept and process orders within
its trading area.
CUSTOMER SETUP: The IBM PC Network Translator Unit, IBM PC Network
Adapter, and IBM PC Network Cabling Components are customer setup
(CSU). Detailed setup instructions are included with each feature.
Setup for the IBM PC Network Translator Unit and the IBM PC Network
Adapter is available from the IBM Customer Service Division at IBM
hourly rates and minimums.
WARRANTY PERIOD: The warranty period is one year for the IBM PC
Network Translator Unit and IBM PC Network Adapter and three months
for IBM PC Network Cabling Components.
WARRANTY SERVICE: Warranty service for the IBM PC Network Adapter is
by Customer Carry-in Repair of the system unit (5150, 5155, 5160,
5170) with the adapter installed, or by IBM On-site Repair if the
warranty option is in effect. Warranty service for the IBM PC Network
Cabling Components is by Customer Carry-In Exchange.
These service offerings are described in the Agreement for Purchase
of IBM Machines (Z120-2892) and the Amendment for IBM
Service/Exchange Center Service (Z125-3385-01).
MAINTENANCE: The IBM PC Network Translator Unit will be serviced
under the Agreement for Purchase of IBM Machines (Z120-2892) and the
IBM Maintenance Agreement (Z125-3275).
Maintenance service for the IBM PC Network Adapter is covered under
the terms and conditions for the system unit in which it is
installed. The system unit maintenance charge is not affected by
addition of the adapter.
       Maintenance service for IBM PC Network Cabling Components is
not offered. Network problem determination is available on a time and
materials basis under the terms and conditions of the service
agreement for the IBM PC Network Translator Unit.
TIME AND MATERIAL: Time and material service for the IBM PC Network
Adapter may be obtained by calling the Service/Exchange Communication
Center's (S/ECC) toll free number. The S/ECC will give the customer
instructions to obtain service.
o   U.S. and Puerto Rico - (800) 428-2569
o   Hawaii and Alaska (call collect) - (312) 986-7451
Time and material service is not available for repair of the cabling
components. Time and material service for the IBM PC Network
Translator Unit is available from the local CSD branch office.
EDUCATIONAL ALLOWANCE: Educational allowance of 20% is available to
qualifying institutions.  The educational allowance is not additive
to any other discount or allowance.
VOLUME PROCUREMENT: Normal IBM Personal Computer VPA provisions
apply. The IBM PC Network Translator Unit is included in the IBM
Personal Computer Volume Procurement Amendment (VPA) under Category
D. Features are eligible for a discount on existing VPAs when
installed within the contract period. See your marketing
representative for details.
       Customers whose requirements will not result in VPA quantities
may also order from an IBM Product Center. Each IBM Product Center
will receive and process orders within its trading area.
Single Delivery
Quantity            Discount
 3 - 9              5%
10 - 19             8%
SPECIAL  BID PROVISIONS:  Special bid  provisions apply.  The IBM  PC
Network Translator Unit is available under Category D of all Personal
Computer  Special   Bid  Contracts  with  discounts   and  terms  and
conditions  consistent with  the Volume  Procurement Amendment  (VPA)
Exhibit.  For existing  qualified  educational customers  the IBM  PC
Network Translator  Unit is available  under the discounts  and terms
and conditions  consistent with the standard  Educational Institution
Special Bid Exhibit. The IBM  PC Network Translator Unit is available
for  remarketing   under  existing  Personal  Computer   Special  Bid
contracts  which allow  remarketing  subject to  the  terms of  those
contracts.
TECHNICAL ASSISTANCE:  The IBM  Personal Computing  Assistance Center
(PCAC)  will provide  assistance to  eligible IBM  customers for  the
period of their qualifying contract.
CHARGES
                                                          Single
                                    Model/                Unit
                                    Feature    Part       Purchase
                                    Number     Number     Price
5178 PC Network
   Translator Unit                  1          5178001    $595
      120V Transformer              0238       6450238     NC
Orders for the IBM PC Network Adapter, IBM PC Network Cabling
Components, and IBM Personal Computer Technical Reference Manual
(#2505) can be ordered as features on the following system units for
new equipment orders (5150, 5160, and 5170). When ordering for
installed system units, process as features of special ordering
vehicle 5150-ZZZ.
IBM PC Network,
   Adapter                          0213       6450213     695
   Base Expander                    0230       6450230      59
   Distance Kit
      Short                         0231       6450231      39
      Medium                        0232       6450232      79

      Long                          0233       6450233      89
   Cabling Segments
      25-foot                       0234       6450234      29
      50-foot                       0235       6450235      39
      100-foot                      0236       6450236      59
      200-foot                      0237       6450237      99
IBM PC Network Technical
   Reference Manual                 2505       6322505     195
Annual Minimum Maintenance Charge
                                               Annual
                                    Model      MMC
5178 PC Network
   Translator Unit                  1          $29.00

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