HP 3000 Series Manual

./
~ 3000 Series 30/33
HP 30020A
Intelligent Network Processor (INP)
installation and service manual
H EWLETJ' ~ PACKARD

HP 3000 Series 30/33 Computer Systems
HP 30020A
Intelligent
Network Processor
(INP)
Installation and Service Manual
HEWLETT ~ PACKARD
19447 PRUNERIDGE AVENUE, CUPERTINO, CALIFORNIA 95014
Manual Part No. 30020-90001
Product No. 30020A Printed in U.S.A.
10/79

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 MATER-
IAL, 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, perfor-
mance or use of this material.
This document contains proprietary information which is protected by copyright. All
rights are reserved.
No
part of this document may be photocopied or reproduced without the prior written consent of
Hewlett-Packard Company.
Copyright©1979 by HEWLETT-PACKARD COMPANY
ii

LIST OF EFFECTIVE PAGES I
The List of Effective Pages gives the date of the current edition and of any pages changed in updates to that edition. Within
the manual, any page changed since
the last edition is indicated by printing the date the changes were made on the bottom
of the page. Changes are marked with avertical bar in the margin. If an update is incorporated when an edition is reprinted,
these bars are removed
but the dates remain. No information is incorporated into areprinting unless it appears as a
prior update.
First Edition October
1979
iii

I PRINTING HISTORY
New editions are complete revisions of the manual. Update packages, which are issued between editions, contain additional
and replacement pages to be merged.into the manual by the customer. The date on the title page and back cover
of the
manual changes only when anew edition
is pUblished. When an edition is reprinted, all the prior updates to the edition
are incorporated. No information
is incorporated into areprinting unless it appears as aprior update. The edition does
not change.
First Edition October 1979
iv

[ PR_EF_AC----'E I
Th ism an ua 1 co nt a ins ins tall a t ion and s e r vic in gin form a t ion for
the HP 30020A Intelligent Network Processor (INP). The INP is a
functionally flexible,· single-channel data processor that pro-
vides I/O capability between the HP 3000 Series 30 or ser ies 33
Computer Systems and other computer systems via either mod.ulator /
demodulators (moderns) and telephone lines or direct connection.
This manual was written with the assumption that the reader has a
thorough knowledge of the HP 3000 Series 30 and Series 33 I/O
system and is familiar with the latest data communications
tech·niques.
This manual is organized as follows:
Section I, General Information, briefly describes the main
features of the INP and how it operates. This section also des-
cribes how the INP is configured in the computer system, lists
the equipment supplied with the INP, and lists its
specifica tions.
Section II, Installation, contains instructions for installing
the INP printed circuit assembly (PCA) and its interconnecting
cabling into an HP 3000 Ser ies30 or Series 33 Computer System.
Section III, Progr.amming Information, states the fact that the
INP is preprogrammed and requires no field programming.
Section IV, Pr inciples of cperation, is a description of the
hardware operation of the INP and its associated communication
channels. Since this is a brief overview, intended only to give
the user a better understanding of how the INP does its job, same
minor operational details have been omitted.
Section V, Maintenance, contains general servicing information,
troubleshooting procedures, repair instructions, and a descrip-
tion of applicable maintenance aids.
This manual should be retained and used with related documenta-
tion for theHP 3000 Series 30 or Series 33 Computer System and
the INP. Related' documents include the following technical
manual s:
HP 3000 Series 33 and HP 3000 Series 30 Reference/Training
Manual, part no. 30070-90003
HP 3000 Series 33 and HP 3000 Series 30 Customer Engineer
Handbook, part no. 30070-90010
v

I PREFACE (continued)
HP 3000 Series 33 Installation Manual, part no. 30070-90021
HP 3000 Series 30 Installation Manual, part no. 30080-90001
HP 3000 Computer Systems, Series 30/33
Guide, part no. 30070-90025
Console Opera tor-' s
HP 3000 Ser ies 33 and HP 3000 Ser ies 30 Diagnostic Manual Set,
part no. 30070-60068
HP 30010A / 30020A Intelligent Network Processor Diagnostic
Procedures Manual, part no. 30010-90002
HP 3000 Computer Systems, Communications Handbook,
30000-90105
part no.
HP 3000 Computer Systems, System Manager / System Supervisor
Reference Manual, part no. 30000-90014.
vi

Section I
GENERAL INFORMATION
CONTENTS I
Page
2-1
2-1
2-2
2-2
2-6
2-6
2-9
2-12
2-12
2-14
Introduction ••••••••••••••••••••••••••••••••••
General Des cr ipt ion •••••••••••••••••••••••
Equipment Supplied •••••••••••••••••
Features ••••••••••••••••••••••••••••
In te r face to Systern ••••••••••••••••
S pe c i fica t ion s •••••••••••••••••••••••••••
Section II -INSTALLATION
Unpacking and Initial Inspection ••••••••••••••••••••
Preparation for Installation ••••••••••••••
PowerRequireme nts ••••••• • ••••••••
PCA Jumpers and Switches •••• ••••••••• • •••••
Hardware Installation Procedures ••••••••••••••••••••
Installation of the INP PCA ••••••••••••••••••••
Installation of the Communication Cables •••••
Software Installation •••••••••••••••••••••••••
Installation Verification ••••••••••••••••••••••••••
Multiple INP Installations •••••••••••••••••••••••••
1-1
1-1
1-2
1-5
1-5
1-7
Section
III - PROGRAMMING INFORMATION ..................
3-1
Section IV -PRINCIPLES OF OPERATION
Fun ct ion al Des cr ipt ion • • • • • • • • • • • • • ••••
INP Microprocessor •••••••••••••••••••••••••
Read-Only Memory (ROM) ••••••••••••••••••
Random Access Memory (RAM) •••••••••••••••••
Di r ect Memor y Acces s (DMA) •••••••••••••••••
SDLC and BISYNC Data Communication •••••••••
Communication Line Interfaces ••••••••••••••••••••
Functional-Level Operation ••••••••••••••••••••••••
System-Level Operation ••••••••••••••••••••••••
vii
4-1
4-1
4-3
4-3
4-3
4-3
4-4
4-4
4-5

CONTENTS (continued)
Page
5-1
5-1
5-2
5-3
5-3
5-4
5-4
5-4
5-4
5-5
5-5
5-5
5-5
5-7
5-10
5-11
5-11
5-12
5-13
..
....
..
..
..
· ..
·.........
·..
...
·.........
·.....
·.....
·.....
·.
·
..
·.....
...........
·.
·.
...........
...
.......
......
...........
Safety Precautions
Repair Ph ilosophy ••••
Ma in te nance Aids
Self Test •••••••
Basic Instruction Set Test
ROM Test •••••••••••••••
Timer Interrupt Test
RAM Tes t •••••••
Chip Tests
BISYNC Test
SDLC Test ••••
Troubleshooting •••••••• • •••••••••••••
Customer-user Troubleshooting Procedures
HP Support Troubleshooting Procedures •••
Off-board Loopback Testing •••••••••••••••
Fie 1d Re p air ••••••••••••••••••••••••••
Field Replacement of a RAM Chip
Replacement of the PCA Board
Reshipme nt In s tr uct ions ••••••••
Section V - MAINTENANCE
Appendix A - CONFIGURING MPE
Configuration Overview ••••
The Configuration Dialogue
·.
..... ......
......
A-I
A-2
Appendix B - INP DUMP FACILITY .........................
B-1
Index
..............................................
Index-l
viii

[ IL_L_US_T_R_AT_I_o_NS_1
Figure
Title
Page
1-1. HP 30020A Intelligent Network Processor and
Related Cabling •••••••••••••••••••••••••••••• 1-0
1-2. Typical Interface to System ••••••••••••••••••••• 1-6
2-1. Loca tion of PCA Sw itches •••••••••••••••••••••••• 2-3
2-2. Location of POWER Switch on HP 3000/30 •••••••••• 2-7
2-3. Location of PROCESSOR Switch on HP 3000/33 •••••• 2-8
2-4. Communication Cable Routing (HP 3000/30) ••••••• 2-10
2-5. Communication Cable Routing (HP 3000/33) ••••••• 2-11
2-6. Self-test Switch and LED Indicators •••••••••••• 2-13
4-1. HP 30020A INP Block Diagram .••.••.•••••••..••••• 4-2
5-1. Locatlon of Pertinent Components on INP PCA ••••• 5-6
TABLES I
Table
1-1.
1-2.
1-3.
2-1.
2-2.
5-1.
5-2.
Title Page
Interconnecting Cable Assemblies •••••••••••••••• 1-3
Test Equipment Compatibility ••.••.•••••.••.•••.• 1-4
Specifications •••••••••••••••••••••••••••••••••• 1-7
HP-IB Address Switch Settings ••••••••••••••••••• 2-4
Roc ker Sw it c h P os i t ions ••••••••••••••••••••••••• 2- 5
Meanings of Self-test LED Indicator Patterns •••• 5-8
Identifying Defective RAM Data Chips •••••••••••• 5-9
ix

General Information
INP PCA
30020-60001
TEST·
HOOD
/
DIRECT-CONNECT
CABLE-INTERNAL
MODEM INTERCONNECTING
CABLE - INTERNAL
DIRECT-CONNECT
CABLE- EXTERNAL
TEST
CONNECTOR
MODEM INTERCONNECTING
CABLE - EXTERNAL
JUNCTION
PANEL
MODEM
Figure 1-1. HP 30020A Intelli9'ent Network Processor
and Related Cabl ing
1-0

GENERAL INFORMATION I~
1-1. INTRODUCTION
This section describes the functional and physical characteris-
tics of the HP 30020A Intelligent Network Processor (INP) shown
in figure 1-1. Related publications that may be required for
operation and service of the INP are listed in the Preface.
1-2. GENERAL DESCRIPTION
The HP 30020A Intelligent Network Processor ( frequently referred
to hereafter as the INP) provides the HP 3000 Series 30 and
Series 33 Computer Systems with data communication capabilities
in high-speed as well as low-speed modern environments.
A microprocessor within the INP performs the communications pro-
tocol management, thus relieving the HP 3000 processor of that
task. As power is applied, the INP initializes itself, runs a
mini-diagnostic routine, reports to the system that it is func-
tionally operational, and requests configuration parameters.
When a request for data communication p"erformance is made (for
example, when a user at a terminal opens a DS line), the system
loads the appropriate driver onto the INP. The INP then trans-
fers control to the driver from its background loader program.
The driver opens the communications channel and passes buffered
data back and forth between the HP 3000 CPU and the data
communication channel.
Serialization, protocol management, frame/block management, modem
management, and data buffering are all performed by the INP. The
CPU must still process message formats and higher level link pro-
cedures. While the INP is transferring the last correctly re-
ceived block of data to the CPU, the INP is also processing and
buffering the next block of data corning from the communication
channel.
1-1

General Information
1-3. Equipment Supplied
The HP 30020A Intelligent Network Processor consists of the
follow ing:
•One
Intelligent
a sse mb 1y ( PCA) ,Netw
or k Proces sor (INP)
part no. 30020-60001.
pr inted circuit
•One HP-IB Ribbon Cable, part no. 30020-60008 (standard
length) or part no. 8120-2846 (optional longer cable for in-
stallation in second card cage of HP 3000/33).
•One HP ~0020A Intelligent Network Processor Installation and
Service Manual, part no. 30020-90001.
•One HP 30010A / 30020A Intelligent Network Processor Diagnos-
tic Procedures Manual, part no. 30010-90002.
Although a complete INP subsystem must include one or more INP-
to-modern cables, INP-to-INP direct-connect cables, or INP-to-SSLC
direct-connect cables, these cables are not included under the HP
J0020A product number. Each interconnecting cable or set of
cables required for the various configurations is ordered
separately under its own product number. See table 1-1 for a
list of the available cables.
I CAUTION I
Use of the longer lengths of the
ex ternalinter connect cables
requires special precautions. Long
cables are very susceptible to
induced transients. DO NOT run
cables outdoors or near electrically
"noisy" equipment.
The following test equipment is used to verify the proper opera-
tion of the INP while troubleshooting the data communications
network:
• Cable test connector.
• Board tes t hood.
These items of test equipment are supplied by the HP Customer
Engineer. Different part numbers of test connectors and test
hoods are required for different cable connection configurations.
Table 1-2 shows which test items are compatible with each set of
interconnecting cables.
1-2

General Information
Table 1-1. Interconnecting Cable Assemblies
Product
No. Opt ion. Des cr ipt ion
Part
No.
3022lA
30221B
RS232 Synchronous Internal Cable
RS232 10-meter External Cable
RS232 Asynchronous Internal Cable
RS232 10-meter External Cable
30221- 60 00 1
5061-2514
30221-60002
5061-2514
30224B
INP-to-INP Direct-Connect
Cable
(Internal) 5061-2523
30224L
External Interconnect
Cable
(IO-meter)
,
30224-60001
30224L
001 External
Inte rconnect Cable
(2 5-me ter)
30224-60002
30224L
002 External Inte rconnect Cable
(50-meter) 30224-60003
30224L
003 External
Interconnect
Cable
(IOO-meter) 30224-60004
30224L
004 Ex ternal Interconnect Cable
( 2 50- me te r )
30224-60005
30224L
005
External Inte r connect Cable
(50 O-me te r )
30224-60006
30224L
006 External Interconnect Cable
(lOOO-meter)
30224-60007
30225B
INP-to-SSLC Direct-Connect Cable
(Internal)
30221-60001
INP-to-SSLC Direct-Connect
Cable
(Ex te rnal)
30225-60003
1-3

General Information
Table.1-2. Test Equipment Compatibility
Used Wi th
Description Part No.
Cable
Pr oduct No.
Board Tes tHood 5061-2519 30221A
30221B
30225B
5061-2522
30224B
Cable Test Connector
5061-2507
30221A
30221B
5061-2512
30224B
30225-60004
30225B-
1-4

General Information
1-4. Features
Important features of the INP are:
• Hardware data transfer rates to 56,000 bits per second.
•32 K
bytes of random access
support program storage
buffer ing •
memory
and for
(RAM) for
character
dr ive rand
and message
• 4 K bytes of read-only memory (ROM).
•
Protocol and link
intervention.
processing
without computer
system
• High-speed, silicon-on-sapphire (SOS) microprocessor.
•Compa tible wi th IBM Bi nary
protocol.
Synchr onous
Comrnun ica t ions
• EIA RS232C, and CCITT V.24 and V.35 compatibility.
• Full- or half-duplex operation.
• Compatible with HP 37210T and HP 37220T moderns and with Bell
201, 208, and 209 modems.
• Direct-connect capability between two HP 3000 computers.
• Retention of buffered data during power fail/restore periods.
• Stand-alone, user-initiated, self-test capability.
1-5. Interface to System
The HP 30020A INP has one PCA board that is backplane compatible
with the HP 3000 Series 30 and Series 33 Computer Systems. The
INP PCA is ins taIled in the "de vice" section of the I/O card
cage. The INP communicates with the General I/O Channel (GIC)
via connector J 3, and with the modern via connector s Jl and J2.
(See figure 1-2.) The INP receives power from the system via con-
nectors P2 and P4. Connector PI is used for test signals, and
connector P3 is not currently used.
1-5

CPU
General Information
~;;OOO/30:; - - - - - - --,
I HP 3000/33 COMPUTER SYSTEM
I
I
I
I
--
MEMORY
--
....--
IX:
w
a:I
~
~
0
0.
1
w
GIC
..J
a:I
.--
«
IllU
""iZ
0.0
J:
1ll
III
IX:
J3
--
INP J2 --
J1
U
.j
----
.
To
OTHER TO OTHER
CO NTROlLERS
DEVICES
L_
__________ .J
I MODEM I
..
TO
REMOTE
COMPUTER
SYSTEM
Figure 1-2. Typical Interface to System
1-6

General Information
1-6. SPECIFICATIONS
The specifications for the HP 30020A
Processor are presented in table 1-3.
Table 1-3. Specifications
Intelligent Networ k
MOdel
30020A Intelligent Network Processor
PCA Part No. 30020-60001
Interface EIA RS232C, CCITT V.24 and V.35, or
hardw ired
Data Rate Modern Up to 19,200 bits per
second in half- or full-
duplex mode for RS232C
Up to 56,000 bits per
second in half- or full-
duplex mode for V.35
Data Buffer
Modern Compatibility
Maximum Number of
INPs per HP 3000/30
Maximum Number of
INPs per HP 3000/33
Power Fail Protection
Hardwired -Up to 56,000 bits per
second for INP-to-INP
Up to 9600 bits per second
for INP-to-SSLC
Greater than 2 K bytes
HP 3 7210T, 37220T
Bell 201, 208, 209
2
7
Buffered data can be restored after a
power failure.
1-7

1-
INSTALLATION III I
This section contains information for unpacking, inspecting,
installing, and initially testing an HP 30020A Intelligent Net-
work Processor (INP) that is to be added to an existing HP 3000
Ser ies 30 or Ser ies 33 Computer System.
2-1. UNPACKING AND INITIAL INSPECTION
If the INP printed circuit assembly (PCA) and associated cable
assemblies are received. separately from the computer system, in-
spect the carton containing the items before opening. If there
is evidence of external damage or if the carton rattles, notify
the nearest HP Sales and Service Office and request that the
carrier's agent be present when the carton is opened.
Inspect each item as the carton is unpacked. If the INP PCA or
cable assemblies are damaged or fail to meet specifications,
notify the carrier and the nearest HP Sales and Service Office
immediately. Retain the shipping carton and packing material for
the carrier's inspection. The HP Sales and Service Office will
arrange for repair or replacement of the damaged item without
waiting for any claims against the carrier to be settled.
2-2. PREPARATION FOR INSTALLATION
Before beginning any INP installation activities, ensure that the
system operator has backed up the system files. This precaution
will prevent the possible inadvertent loss of the data residing
on the disk.
2-1