IBM 3745 Series Setup guide

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--_

.- 3745 Communication

Controller

Maintenance Information Reference (MIR)

Part 1

co co

III

SY33-2056-6

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IBM 3745 Communication Controller

Models 210,310,410, and

610

IBM 3746 Expansion Unit

Models A11, A12, L

13,

14,

and L

Maintenance Information Reference (MIR)

Part 1

SY33-2056-6

Note!

Before

using

this

information and

the

product

it supports, be

sure

read

the

general

information

under

"Notices"

on page ix.

Seventh Edition

(August

1991)

The

information

contained in this manual is subject

change from

time

time.

Any

such changes

will

reported

in subsequent revisions. Changes have been made

throughout

this

edition, and

this

manual

should be read in its entirety.

Order

publications

through

your

IBM representative

the IBM branch office

serving

your

locality.

Publications

are

not stocked at the addresses given below.

form

for

readers'

comments appears at

the

back

this

publication.

the

form has been removed,

address

your

comments

to:

International

Business Machines Corporation

Department

6R1

180

Kost

Road

Mechanicsburg

PA 17055-0180

U.S.A.

IBM France

Centre

d'Etudes

Recherches

Service

0762 BP

06610 La Gaude

France

When you send information

IBM, you grant IBM a non-exclusive

right

use

distribute

the

infor-

mation

any

way

it believes

appropriate

without

incurring

any

obligation

you.

International Business Machines Corporation 1988, 1991.

All

rights

reserved.

Note

U.S.

Government

Users -Documentation related

restricted rights -Use,

duplication

dis-

closure

subject

restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Contents

Part 1

Chapter 1. General Information

Introduction

...........

Modes

Operation

......

Machine Identification and Capacity

3745

Model Identification

......

Frame Locations

..........

IBM

3745

Programming Support

Using the

3745

Library

for

Service

Preventive Maintenance

Maintenance Philosophy

Maintenance Aids

1-1

1-2

1-8

1-10

1-11

1-19

1-22

1-24

Chapter

Central Control Unit (CCU)

2-1

The

CCU

3745

Data Flow

2-2

General Description .

.........

2-3

Functional Description . . . . . .

2-4

CCU

Environment

2-12

Main Storage

.....

2-14

CCU

to/from

Storage

2-19

CCU

to/from

Adapters (CA-LA)

2-23

CCU

to/from

MOSS

.......

2-46

CCU

Diagnostics

.........

2-47

Problem Isolation Procedure

for

210-to-410

3'10-to-610 Model Upgrade .

2-55

Chapter

Buses and Bus Switching

.....

The Buses and Bus Switching in

3745

Data Flow

Generalities

. . . . . . . . . . . . .

Bus Switch

Buses

.....

Adapter Addressing .

Bypass Mechanism for LAs

Bypass Mechanism for CAs

Extended Troubleshooting: Adapter Bus Problem Isolation

Chapter

Transmission Subsystem (TSS)

Low Speed Scanner (LSS)

LlC Unit (LlU)

.................

Serial Link (SL)

................

Communication Scanner Processor (CSP) Card

Front

End

Scanner

(FES)

.....

Front

End

Scanner

Adapter

(FESA)

...

Serial Link (SL)

...............

Double

Multiplexer

Card (DMUX)

....

Single

Multiplexer

Card (SMUXA/B)

LlCs Type 1

4 Cards

............

LlCs Type 5 and 6

DTE

Function

LlC Type 5

DCE

Function

...........

3-1

3-2

3-3

3-4

3-23

3-55

3-72

3-80

3-84

4-1

4-8

4-10

4-15

4-16

4-27

4-31

4-38

4-40

4-44

4-49

4-59

4-62

1991

iii

L1C

Type 6 DSU/CSU Function

...;.......

Scanner Microcode

................

Microcode Interaction with the Control Program

Microcode Interaction with

FES

Microcode Interaction with MOSS

Instruction Operation

.....

External Registers Description

FES

RAM A Description

FES

RAM B Description .

FES

RAM C Description .

Error Detection

.....

Reporting Errors

the

CCU

Reporting Errors

the MOSS

Miscellaneous Status Fields

Error Status Description

Problem Determination Aids

for

LlC1s to

L1C4s

Problem Determination Aids

for

LlC5s and

L1C6s

Chapter

The Token-Ring Subsystem

The

TRSS

3745

Data Flow

....

Token-Ring Network

..........

The Token-Ring Adapter in the

3745

Token-Ring Interface Coupler (TIC) Card

Token-Ring Multiplexor (TRM) Card

Machine Internal Communications

Programmed Input/Output Operations

PIO

Functional Description

.....

PIO/MMIO Hand-Shaking Mechanism

PIO

Format and Types

TRM

PIO

Command Description

TRM Cycle Steal Operations

TRM Interrupt Operations

TRA Disconnect/Connect Function

TRA Resets

............

Error

Detection and Reporting

TRA Interaction with Control Program

Problem Determination Aids

......

Chapter

High

Performance Transmission Subsystem (HPTSS)

HPTSS

3745

Data Flow

.....

Introduction

.................

Internal Interconnections

..........

Communication Scanner Processor (CSP)

Front

End

Scanner High-Speed

(FESH)

NCP-to-CSP Command Flow

Transmit Operation

......

Receive Operation

.......

Modem Interface Management

Microcode Interaction with Control Program

Microcode Interaction with MOSS

HSS

Registers

........

Error Detection and Reporting

Miscellaneous Status Fields

Problem Determination Aids

Communication Interfaces

IBM 3745 Maintenance Information Reference (MIR)

. 4-87

. 4-99

4-102

4-112

4-118

4-122

4~125

4-141

4-150

4-155

4-172

4-182

4-190

4-194

4-201

4-208

4-212

5-1

5-3

5-4

5-11

5-13

5-18

5-22

5-24

5-26

5-29

5-31

5-35

5-38

5-40

5-47

5-49

5-50

5-57

5-60

6-1

6-3

6-4

6-11

6-13

6-17

6-21

6-23

6-26

6-31

6-37

6-40

6-50

6-59

6-60

6-63

Part 2

Chapter

Channel

Adapter

(CA) . . . . .

The Channel

Adapter

3745

Data Flow .

Introduction

........

CA Operating Environment

Overall Operation

.......

Input/Output Instruction Format

CA Instructions (Register Contents)

Autoselection

............

Cycle Steal

.............

CA Interface Enabling/Disabling

CA/MOSS Connection

....

Interrupt Requests

.......

Control Character Recognition

Two-Processor Switch (TPS)

CA Error Condition

Channel Stop

....

Interface Disconnect

I/O Error Alert

CA Concurrent Maintenance (CACM)

Testing and Checking Hardware

Channel Monitoring

CA Initialization

........

Chapter

Maintenance and Operator Subsystem (MOSS)

Introduction

....

MOSS Reset

MOSS Functions

MOSS States

MOSS Microcode

MOSS Interrupt Levels

Detection

MOSS Errors

MOSS/CCU Communication

MOSS/CCU

Adapter

(MCCU) Registers

MOSS/CA

Adapter

(MCAD) Registers

MOSS/SWL

Adapter

(SWAD) Registers

Branch Trace

...

Address Compare

..........

Mailbox Description

.........

MOSS/Line

Adapter

Communication

LSSD

Operation

...........

MOSS/Disk Drive Interaction

MOSS/Operator Console Connections

Chapter

Control Panel, Operator Consoles, Disk/Diskette Drives

Control Panel

...

Operator Consoles

Disk/Diskette Drive

Chapter 10. 3745

Power

System

The Power System in

3745

Data Flow

Introduction

....

AC Voltages Input

..........

7-1

7-4

7-5

7-10

7-11

7-14

7-16

7-43

7-45

7-46

7-47

7-48

7-49

7-53

7-55

7-56

7-57

7-60

7-61

8-1

8-3

8-4

8-6

8-7

8-9

8-10

8-11

8-14

8-15

8-18

8-21

8-24

8-26

8-30

8-34

8-35

8-37

8-38

9-1

9-2

9-6

9-9

10-1

10-3

10-4

Contents V

Power Control Subsystem

Power Mode

Operation

Power ON/OFF Sequence

POR

from Power Control

Maintenance

Chapter 11.

IML

and IPL

IPL Initialization

.....

Controller Initialization

IPL Structural Description

MOSS

IML

Description

Scanner IML Step Description

Timed IPL

..........

Chapter 12.

Error

Logging .

Introduction

.........

BER

Generalities

......

BERs Which Are Not Machine Errors

Specific Mechanisms

AutoMaint

..........

BER

Recovery Procedures .

Unresolved Interrupts

MOSS BER Type

Diagnostics

BER

Type

Power

BER

Type 04 .

NCP

ESS

BER

Type

NCP

BER

Type

NCP

TSS/HPTSS

BER

Type

NCP/PEP

BER,

Type

NCP

CCU

BER

Type

NCP

IOC

BER

Type

NCP

TRSS

BER

Type

Chapter 13. Traces,

Dumps

and

File

Transfer

Traces

......................

Traces in an ACF/VTAM Environment

Host Traces (Environment-Independent)

External Scanner Interface Trace

......

Internal Scanner Interface Trace

Scanner Microcode Checkpoint Trace

Internal Channel

Adapter

Trace

LOGREC Display With

EREP

....

Dumps and File Transfer

the Host

Chapter 14. Ethernet Subsystem (ESS)

ESS

3745

Data Flow

......

Introduction

..............

Frame Types Supported

ELA Microcode Description

....

Internal Interconnections

......

Communication Scanner Processor (CSP)

Ethernet LAN Coupler Card (EAC)

.....

NCP-to-CSP Command Flow

.........

Microcode Interaction With Control Program

Parameter/Status Area Layout

.......

IBM

3745

Maintenance Information Reference

(MIR)

10-38

10-42

10-44

10-46

10-75

11-1

11-2

11-5

11-6

11-25

11-27

11-29

12-1

12-4

12-6

12-13

12-14

12-19

12-27

12-28

12-32

12-119

12-121

12-128

12-140

12-152

12-164

12-167

12-171

12-173

13-1

13-2

13-4

13-7

13-16

13-24

13-30

13-31

13-61

13-62

14-1

14-3

14-4

14-8

14-10

14-12

14-13

14-14

14-17

14-20

14-25

ELA Command Description

.....

Microcode Interaction With MOSS

ELA Registers

.........

Error Detection and Reporting .

Problem Dete"rmination Aids

List of Abbreviations

Glossary

Bibliography . . . . . . . . .

3745

Models

210,

310,

410,

and

610

Customer

Documentation

3745

Models

210,

310,

410,

and

610

Service Documentation.

Index

................................

14-32

14-39

14-42

14-50

14-59

X-1

X-11

X-17

X-18

X-19

Contents

vii

viii IBM 3745 Maintenance Information Reference (MIR)

Notices

References in

this

publication

IBM products,

programs

services

not

imply

that

IBM

intends

make

these

available

in all

countries

which

IBM

operates.

Any

reference

an IBM product,

program,

service

is not

intended

state

imply

that

only

IBM's

product,

program,

service

may be used.

Any

functionally

eq·uivalent product,

program,

service

that

does not

infringe

any

IBM's

intellectual

property

rights

may

used instead

the

IBM

product,

program,

service. Evaluation and

verification

operation

con-

junction

with

other

products,

except

those

expressly

designated

by IBM, is

the

user's

responsibility.

IBM

may

have

patents

pending

patent

applications

covering

subject

matter

this

document.

The

furnishing

this

document

does

not

give

you

any

license

these

patents. You can send

license

inquiries,

writing,

the IBM

Director

Commercial

Relations,

IBM

Corporation, Purchase, NY 10577, U.S.A.

Electronic Emission Notices

Federal

Communications

Commission

(FCC)

Statement

Note: This

equipment

has been tested and found

comply

with the

limits

for

Class A

digital

device,

pursuant

Part

the

FCC Rules. These

limits

are

designed

provide

reasonable

protection

against

harmful

interference

when

the

equipment

operated

in a

commercial

environment.

This

equipment

gen-

erates, uses and can

radiate

radio

frequency

energy

and,

not

installed

and

used in

accordance

with

the

instruction

manual,

may

cause

harmful

interfer-

ence

radio

communications.

Operation

this

equipment

in a

residential

area

likely

cause

harmful

interference, in

which

case

the

user

will

required

correct

the

interference

at his

own

expense.

Properly

shielded

and

grounded

cables

and

connectors

must

be used in

order

meet

FCC

emission

limits.

IBM is not

responsible

for

any

radio

television

interference

caused

using

other

than

recommended

cables

and

connectors

unauthorized

changes

modifications

this

equipment.

Unauthorized

changes

modifications

could void

the

user's

authority

operate

the

equip-

ment.

This

device

complies

with

Part

the FCC Rules.

Operation

subject

the

following

two

conditions:

(1)

this

device

may

not

cause

harmful

interference,

and

(2)

this

device

must

any

interference

received,

including

interfer-

ence

that

may

cause

undesired

operation.

For

Canada, Canadian Department

Communication Statement, GX27-3883,

applies.

1991

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