HP 30240A Manual

HP 3000 Computer Systems
HP 30240A
OfficeShare LAN/3000 Link/
Local Area Network Interface Controller
(lANIC)
Installation and Service Manual
Flill HEWLETT
~~ PACKARD
Hewlett-Packard Company
Roseville Networks Division
8000 Foothills Boulevard
Roseville,
California
Update 1(May 1987)
ManualPartN~ 30240-90001
E1185
Printed in U. S. A
November
1985

NOTICE
The
information contained in this document is subject to change without notice.
HEWLETT-PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS
MATERIAL, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF
MERCHANTABILITY
AND FITNESS FOR APARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or consequential damages in connection with the
furnishing, performance or use of this material.
Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that
is not furnished by Hewlett-Packard.
This
document contains proprietary information which is protected by copyright. All rights are
reserved. No part of this document may be photocopied, reproduced or translated to another language
without the prior written consent of Hewlett-Packard Company_
Copyright ©1985, 1987 by
HEWLETT-PACKARD COMPANY

PRINTING HISTORY
The Printing History below identifies the Edition of this Manual and any Updates that are included.
Periodically, update packages are distributed which contain replacement pages to be merged into
the
manual, including an updated copy of this Printing History page. Also, the update may contain write-in
instructions.
Each reprinting of this manual will incorporate all past updates; however, no new information will be
added. Thus, the reprinted copy will be identical in content to prior printings of
the same edition with
the user-inserted update information. New editions of this manual will contain new information, as well
as updates.
First Edition
Update 1
.. November 1985
...... May 1987
iii

LIST OF EFFECTIVE PAGES
The List of Effective Pages gives the date of the most recent version of each page in the manual. To
verify
that your manual contains the most current information, check the dates printed at the bottom of
each page
with those listed below. The date on the bottom of each page reflects the edition or subsequent
update in which
that page was printed.
Effective Pages Date
All. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. Nov 1985
2- 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . May 1987
A-2/ A-3 May 1987
v

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vi
CONTENTS
Section 1
GENERAL INFORMATION
Introduction '
1-1
General Description. ........................................ 1- 1
Equipment Supplied 1-3
System Interface 1-4
Link Address ...........................................1- 5
Specifications 1- 5
Section 2
INSTALLATION
Current Requirements 2-1
Channel Address Switch 2-1
Cables 2-3
Installing the LANIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Start Up 2- 5
Reshipment 2-6
Section 3
PRINCIPLES OF
OPERATION
LAN Interface Controller (LANIC) 3-1
Host to LANIC Communication 3-1
LANIC MPU and Firmware 3-3
Local Communications Controller 3- 3
Direct Memory Access .....................................3- 3
Firmware Download and Configuration 3-3
Firmware Download 3- 3
Setting Station Address 3- 3
Queue Initialization 3-4
Transmit Operation 3-4
Types of Packets Transmitted 3-4
Transmit Buffer Management. 3-4
Queuing of Transmit Buffers 3-4
Transmit Operation Example 3-4
Receive Operation 3-4
Types of Packets Received 3-4
Receive Buffer Management 3- 5
Queuing of Received Packets 3- 5
Receiver Blind Spots 3- 5
Receive Operation Example ; 3-5

CONTENTS (continued) I
Error Management. 3-5
Self-Test Operation 3-6
System Interrupt 3-6
SINTRO Self-Test Interrupt 3-6
SINTR1 LANIC Interrupt 3-6
Interactive Command Completion 3-7
Interactive Command Acknowledgement. 3-7
Batch Command Completion 3-8
Fatal Error Response 3- 8
LANIC Resets. ..........................................3-8
Power-On Reset 3-9
Hard Reset 3-9
Soft Reset ...........................................3-9
Z-80 Reset 3-10
Power-Fail Warn 3-10
Self-Test 3-10
Manually Initiated Self-Test. 3-10
Remotely Initiated Self-Test 3-10
Idle Self -Test 3-10
Visual Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 10
Attachment Unit Interface (AUI) 3-10
MAU Power Control Circuit. ..............................3 -12
LED's 3-12
DO LED Pair 3-15
CL LED Pair 3-16
CR LED Pair " 3-16
H through Nand *LED's. ................................3 -16
TX, RX, MN, DL, RO, Q, and IT LED's ........................3 -16
Section 4
MAINTENANCE
Repair Philosophy
~ ~ 4-1
Self -Test ~ 4-1
Appendix A
CONFIGURATION INFORMATION
Configuration Dialog. ....................................
.. A-1
vii
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SAFETY CONSIDERATIONS I
SAFETY SYMBOLS
Instruction manual symbol: the product
will be marked with this symbol when
it is
necessary for the user to ref er to the
instruction manual in order to protect the
product against damage.
GENERAL .. This product
documentation must
be
familiarization with safety
instructions before operation.
and related
reviewed for
markings and
J CAUTION IThe CAUTION sign
denotes ahazard.
It calls
attention to an operating
procedure, practice,
or the
like, which, if not correctly
performed
or adhered to,
could result
in damage to or
destruction of part or all of
the product. Do not proceed
beyond aCAUTION sign
until
the indicated conditions are
fully understood and met.
I CAUTION I
ST A TIC SENSITIVE DEVICES
.WARNING_
viii
Indicates hazardous voltages.
Indicates
earth (ground) terminal
(sometimes used in manual to indicate
circuit common connected to grounded
chassis).
The WARNING sign
denotes ahazard.
It calls
attention to aprocedure,
practice, or the like, which,
if
not correctly performed or
adhered to, could result in
injury. Do not proceed
beyond aWARNING sign
until
the indicated conditions
are fully understood and met.
When any two materials make contact,
their surf aces are crushed on the atomic
level and electrons pass back and
forth
between the objects. On separation, one
surface comes away
with excess electrons
(negatively charged) while
the other is
electron deficient (positively charged). The
level of charge
that is developed depends on
the type of material. Insulators can easily
build up charges in excess
of 20,000 volts.
Aperson working
at abench or walking
across afloor can build
up acharge of
many thousands of volts. The amount of
static voltage developed depends on
the
rate of generation of the charge and the
capacitance of the body holding the charge.
If the discharge happens to go through a
semiconductor device and the transient
current pulse is not effectively diverted by
protection circuitry,
the resulting current
flow through the device can raise the
temperature of internal junctions to their
melting points. MOS structures are also
susceptible to dielectric damage due to high
fields.

The resulting damage can range from
complete destruction to latent degradation.
Small geometry semiconductor devices are
especially susceptible to damage by static
discharge.
The LANIC card
is shipped in a
transparentstatic shielding bag. The card
should be kept
in this bag at all times until
it is installed in the system. Save this bag
for storing or transporting the card. When
installing
the card in the system) do not
touch any components. Hold the card by
its edges.
WARNING
SAFETY EARTH GROUND - The
computer on which this product is installed
is asafety class Iproduct and is provided
with aprotective
earthing terminal. An
un interruptible safety ground must be
provided from
the main source to the
product input wiring terminals, power
cord,
or supplied power cord set.
Whenever
it is likely that the protection
has been impaired,
or before the power
cord
is removed from the wall receptacle,
the AUI cable connector must be removed
from the junction panel and insulated
from exposed conductive surfaces.
WARNING
At infrequent intervals, exposed metal
surfaces
of the AUI cable may be subject
to
transient hazardous voltages due to
strong electrical disturbances (such as
lightning
or disturbances in the electrical
utilities power grid) in
the area
surrounding the network to which this
product is connected. These surfaces
should be handled with caution when
the
AUI cable is not connected toa properly
grounded HP
3000 Computer System.
SERVICING
WARNING
Any servicing, adjustment, maintenance, or
repair of assemblies within the HP 3000
cabinet must be performed only by
qualified personnel.
WARNING
This product is not designed for
attachment to anetwork serving an area
which contains multiple unconnected
power system safety grounds. Before
installing this product, verify
that all of
the power system safety grounds
are
securely interconnected in the area served
by
the local network.
WARNING
Do not connect this product to an
ungrounded network coaxial cable.
ix