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IBM 150 Introduction Manual

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  • Page 1

    Ibm 3745 communication controller models 130, 150, and 170 ibm introduction ga33-0138-2.

  • Page 3

    Ibm 3745 communication controller models 130, 150, and 170 ibm introduction ga33-0138-2.

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    Third edition (june 1991) this major revision obsoletes and replaces ga33-0138-1. It reflects new enhancements to the ibm 3745 communication controller models 130, 150, and 170. Changes or additions to the text and illustrations are showed by a vertical line to the left of the change. Changes are ma...

  • Page 5: Special Notices

    Special notices references in this publication to ibm products, programs, or services do not imply that ibm intends to make these available in all countries in which ibm operates. Any reference to an ibm licensed program or other ibm product in this publication is not intended to state or imply that...

  • Page 6

    Federal communications commission (fcc) statement note: this equipment has been tested and found to comply with the limits for a class a digital device, pursuant to part 15 of the fcc rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is...

  • Page 7

    Ibm 3745 communication controller model 130, 150, or 170 with an ibm 3151 display station as operator console. Note: this picture shows the design model only. V.

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    Vi ibm 3745 models 130, 150, 170: introduction.

  • Page 9: About This Book

    About this book how to use this book this book has been written to help you understand the basic concepts of ibm communication controllers, and especially the key advantages and capabilities of the ibm 3745 communication controller models 130, 150, and 170 for your network. These controllers and the...

  • Page 11: Contents

    Contents about this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vii how to use this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vii who should use this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vii terms used in this bo...

  • Page 13: Chapter 1. Highlights

    Chapter 1. Highlights in today's communication networks, the communication controllers save much data processing power by handling sophisticated functions to control the data flow between host processors and the network of terminals. The ibm communication controllers are intelligent and multifunctio...

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    The ibm communication controllers run under control of the network control program (ncp) stored in their own storage and generated in the host using the system support programs (ssp). 1-2 ibm 3745 models 130, 150, 170: introduction.

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    Ibm 3745 communication controllers in a typical network chapter 1. Highlights 1-3.

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    Ibm 3745-130/150/170 communication controller connectivity the following figure shows that, a 3745-130/150/170 can be: 1 channel-attached (via a channel adapter) to one or more hosts. 2 link-attached (via telecommunication facilities) to a host through another ibm communication controller (allowing ...

  • Page 22

    Configuration of channel adapters (cas) for a maximum of four host connections, optionally with data streaming protocol. High-performance transmission subsystem (hptss) with sdlc high-speed lines (1.5 mbps with t1 clear channel or 2 mbps with cept clear channel). Direct memory access (dma) with dma ...

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    Serviceability error handling is improved by: tracking of all detected incidents box event records (bers), relating to hardware or microcode, stored on controller hard disk automatic ber analysis (autober) alarms generic alerts via the netview* program controller resource reactivation, for example: ...

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    2-4 ibm 3745 models 130, 150, 170: introduction.

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    Chapter 3. Program support and network management the 3745 operates under the control of various ibm licensed programs: controller-resident programs the 3745 runs under control of one of the following: advanced communications function for the network control program (acf/ncp), abbreviated ncp in thi...

  • Page 26

    Start-stop and binary synchronous terminals can be migrated to a 3745 with the ibm network terminal option (nto) program. For start-stop protocols, ncp supports a variety of transmission codes including ascii, ebcdic, ebcd, and bcd. Further, it supports a correspondence code for which it provides tr...

  • Page 27

    Multiple load module the network operator can transfer and save either one or two ccu load modules (up to 6mb per load module) on the integrated hard disk. Either load module can be selected for loading at controller initialization. When initiating a control program load request at the host, the net...

  • Page 28

    From the host storage to the remote ccu storage. This option is used when the ncp load module size exceeds 1mb and cannot be transported from the host to the remote 3745 via a 1mb diskette. In this case a reduced ncp load module is generated in the host, the size of which is less than 1mb thus fitti...

  • Page 31

    A command facility, which lets the user control, record, and automate various operator tasks. It can be used as an operator's interface to vtam in a data communication network. A session monitor, which enables the user to examine, from a central control point, information related to the sna network ...

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    3-8 ibm 3745 models 130, 150, 170: introduction.

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    Chapter 4. Controller description the 3745-130/150/170 consists of three main functional areas: the following is a functional description of the main components and available features of the 3745-130/150/170. The overall data flow of a maximum 3745-130/150/170 configuration is shown on page 6-6. Cop...

  • Page 34

    Control subsystem the control subsystem contains: the central control unit (ccu), with its associated cache high-speed buffer (hsb). The main storage. The storage control, equipped with a direct memory access (dma). The input/output control bus (ioc bus). The dma bus. The moss input/output control b...

  • Page 35

    High-speed buffer the cache hsb is packaged with the ccu and has a capacity of 32kb. It connects the ccu and the storage control and dma. Data and instructions transferred from the main storage at a slower rate are buffered in the high-speed buffer and provided to the ccu at the ccu cycle rate. Thus...

  • Page 36

    Direct-current interlock (dci) high-speed transfer data streaming. Depending on the programming support, cas can be operated: in native mode under ncp control. Only one channel address is used to transmit all data to a host. In partitioned mode under pep control. Pep operates certain lines in native...

  • Page 37

    1. Only one interface (a or b) enabled: the host attached to that interface activates the channel as required by the application. 2. Both interfaces (a and b) enabled: both interfaces a and b are connected to two channels of the same host. Both interfaces cannot be active simultaneously, and the hos...

  • Page 40

    Low-speed scanner a low-speed scanner consists of a communication scanner processor (csp) associated to a front-end scanner low-speed (fesl). Communication scanner processor the 3745 uses a microprocessor-based communication scanner. The csp supports multiple line protocols, and provides character b...

  • Page 41

    Logical addressing improves the flexibility of lic attachment. Lics can be placed anywhere without regard to the scanning sequence or lic weight. High-speed lics can come before or after low-speed lics and there can be open lic positions. Selective scanning allows an lss to run multiple line configu...

  • Page 42

    Lic base (lib) there are up to four lic bases (libs). Each lib houses: one multiplexer (mux) and up to eight line interface couplers (lics). The figure below shows a maximum configuration for a 3745-170. 4-10 ibm 3745 models 130, 150, 170: introduction.

  • Page 43

    Line interface couplers (lics) there are six types of lic, namely: lic1, lic3, lic4a and lic4b for attaching: – local direct-attached dtes (not attached through dces) – remote dtes attached via stand-alone dces and telecommunication facilities. An internal clock function (icf) is available on these ...

  • Page 44

    Lic characteristics following are the main characteristics of the lics 1 through 6. Speed : up to 19.2 kbps protocol : start-stop, bsc, sdlc interface : ccitt v.24 and v.25 (eia 232d and 366), ccitt v.25 bis (see note), ccitt x.20 bis and x.21 bis number of lic1s per scanner: up to 8. Note: ccitt re...

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    Portable keypad display an ibm 5869 portable keypad display, pluggable at lic5s or lic6s, is used to: configure. Set operational options. Display line status. Invoke manual tests of the integrated dces (see chapter 5, problem determination). Various parameters are stored in a nonvolatile random acce...

  • Page 49

    High-performance transmission subsystem (hptss) the hptss consists of up to two high-speed scanners (hsss). A hss consists of one communication scanner processors (csp), associated with a front-end scanner high-speed (fesh). Communication scanner processor the hptss csp is the same as the lss csp, b...

  • Page 50

    Other local direct-attached ibm communication controllers. The maximum speed is then 1.8 mbps and the maximum distance is 10 m (33 ft.) via x.21 interface and 100 m (328 ft.) via a v.35 interface. For direct-attachment, the fesh provides data clocking (see appendix a). Token-ring subsystem (trss) th...

  • Page 52

    Maintenance and operator subsystem (moss) the moss provides: powerful procedures for the 3745 initialization and ipl functions host-independent product maintenance and rapid isolation and repair of failures within the controller easy problem determination procedures for the operator. The moss also p...

  • Page 53

    A power control adapter with a dedicated microprocessor monitors the 3745 power. A file adapter provides moss storage control. A 72mb hard disk, in addition to a 1.2mb diskette, provides extensive capacity for file and data storage. The moss interfaces to the control panel indicators and switches. T...

  • Page 54

    Moss disk/diskette drive and adapter the diskette drive and disk drive are connected to the moss bus via the disk adapter, and consist of: an integrated disk drive with one hard disk that provides 72mb. A diskette drive with removable diskettes. Each diskette provides 1.2mb. The diskettes contain th...

  • Page 55

    Control panel moss functions are commonly performed at the console. However, some of them can, if necessary, be activated at the control panel. For example, the control panel allows vital functions such as powering on and initializing the controller or stopping the controller operation (unit emergen...

  • Page 56

    Operator consoles and remote support facility an operator console is required for: installation operation maintenance. The 3745 provides attachment for three different types of consoles: a local console, which is mandatory, and a remote or an alternate console. It also provides attachment for the re...

  • Page 57

    Local console the local console is mandatory. It is directly attached (no dce) to the 3745 at a maximum distance of 7 m (23 ft.). This console, which is compatible with ccitt v.24, communicates with the 3745 in duplex start-stop mode at 2400 bps. The local console can be: an ibm 3151 display station...

  • Page 58

    The alternate console can be: an ibm 3151 display station running in native mode an ibm 3161 display station running in ibm 3101 emulation mode an ibm 3163 display station running in ibm 3101 emulation mode a ps/2 (models 50 and above) with os/2 extended edition running in ibm 3101 emulation mode an...

  • Page 59

    Moss functions startup and management controller initialization including ccu ipl, scanner iml, and ca ipl. Initial configuration and reconfiguration management. Scheduled power on. Permanent display of the machine status on the 3745 operator console. Functions that maintain machine files defining t...

  • Page 60

    – trss services scanner sit trace (of lss, hss, ela) wrap tests on lss and hss lines power services. Utility programs through the utility programs, the operating and maintenance personnel can: display the control program, scanner, tic, or moss dump transfer dumps to the host for printing modify the ...

  • Page 62

    5. On receipt of appropriate vtam commands, loaded from the disk to the remote 3745 ccu storage. The disk ipl information (dii) function allows all these copy operations from disk to diskettes and from diskettes to disk. Supervising the controller normal operations are supervised by the control prog...

  • Page 63

    Machine level table the machine level table (mlt) contains information such as the microcode level of the machine, the type and version of control program (ncp or pep), and the load module being used. This table provides information required by the maintenance personnel. The machine level table can ...

  • Page 64

    The port swap function, the operator can display, create, or delete port swap definitions. Power services the power services (pos) are used to: dump the power control microcode change the control panel batteries. Scheduled power-on the scheduled power-on function provides, on a daily basis, one 3745...

  • Page 65

    Chapter 5. Problem determination hardware, microcode, or software failures may occur in a data network. These errors are identified and notified to the host by the 3745. They are handled differently depending on whether the host is equipped with: the vtam access method along with the netview program...

  • Page 66

    Any abnormal condition detected either: - by these 3745 error detectors, or - in the network is signalled to the moss. Then, the moss: builds a ber and stores it on the disk for future use depending on the severity of the event, builds an alarm message for the 3745 console(s) depending on the severi...

  • Page 67

    Netview program the netview program and vtam work together to provide easy problem determination facilities such as generic alerts, session flow tracing, and network recovery (through user written clists for activation/deactivation of a failing component in the network), and monitoring facilities. T...

  • Page 68

    Autober program and refcode the automatic ber analysis program (autober) is a facility for problem source identification. Each ber is analyzed by the autober program to produce an eight-character reference code (refcode). The latter is included in the alarm and alert messages. This refcode helps ide...

  • Page 69

    If the retry is successful, a recovery is used to reactivate the resource. Error recovery attempts performed by the moss are: automatic scanner dump and re-iml automatic ccu dump and re-ipl automatic moss dump and re-iml automatic tic dump. For example, if the moss is operational and a failure occur...

  • Page 70

    Problem determination facilities summary the following problem determination facilities are available. Most of them can be used by both the user and the ibm service representative. The service representative may, however, have access to a more complex level of some facilities, for example, the confi...

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    5-8 ibm 3745 models 130, 150, 170: introduction.

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    Chapter 6. Controller maintenance depending on the faulty controller element, problem determination takes place at the system level, controller level, or both. Diagnostic programs , stored on the moss disk, are used to detect and isolate hardware failures in the controller. They also help verify the...

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    6-2 ibm 3745 models 130, 150, 170: introduction.

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    A when the failure occurs, it is notified to the operator via alarm or alert messages which explain: – the nature, – the area, and – the probable cause of the failure. The message content can be used as an entry in the problem determination documentation. Accordingly, the user can take the appropria...

  • Page 76

    Remote support facility the remote support facility (rsf) allows communication through public switched network between the moss and the ibm remote assistance information network (retain). Such a connection is temporarily or permanently authorized through a password defined by the user. Rsf is a help...

  • Page 77

    Installation and upgrade the installation of the 3745-130/150/170 includes a planning phase, physical installation, and the setting of line and integrated modem characteristics. The configuration definition and the site preparation are done by the user with the assistance of ibm. The necessary infor...

  • Page 78

    3745-130/150/170 general data flow 6-6 ibm 3745 models 130, 150, 170: introduction.

  • Page 79: Appendix A. Data Clocking

    Appendix a. Data clocking this appendix provides clocking considerations for properly operating: low-speed scanners with low/medium-speed lines high-speed scanners with high-speed lines. Data clocking for low-speed scanners an internal clock function (icf), associated with each lic, provides the tra...

  • Page 80

    2. Synchronous lines (bsc, sdlc) 50, 100, 134.5, 200, 300, 600, 1200, 2400, and 4800 bps. 3745 mode speed selection : by ssp at generation time ncp parameters : clocking=direct, speed=xxx speeds: 1. Asynchronous lines (start-stop) 50, 75, 100, 110, 134.5, 200, 300, 600, 1200, 2400, 4800, 9600, and 1...

  • Page 81

    Data clocking for high-speed scanners in case of attachment between two compatible high-speed scanners (3745-130/150/170 or 3745-210/410), the clocking is provided by: the primary high-speed scanner in direct-attachment mode the dce (network adapter) in remote attachment mode. Direct-attachment spee...

  • Page 82

    A-4 ibm 3745 models 130, 150, 170: introduction.

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    Kb kilobyte; 1024 bytes kbps kilobits per second la line adapter lan local area network lib lic base lic line interface coupler lic1 line interface coupler type 1 lic3 line interface coupler type 3 lic4a line interface coupler type 4a lic4b line interface coupler type 4b lic5 line interface coupler ...

  • Page 85

    Tic token-ring interface coupler tim time services tps two-processor switch tra token-ring adapter trss token-ring subsystem tss transmission subsystem t1 u.S. Service for high-speed transmissions at 1.536 mbps vm virtual machine vm/sp virtual machine/system product vm/sp hpo virtual machine/system ...

  • Page 86

    X-4 ibm 3745 models 130, 150, 170: introduction.

  • Page 87: Glossary

    Glossary this glossary defines all new terms used in this manual. It also includes terms and definitions from the ibm dictionary of computing, sc20-1699. If you do not find the term you are looking for, refer to the index or to the ibm dictionary of computing . Alarm. A message sent to the moss oper...

  • Page 88

    Configuration data file (cdf). A moss file that contains a description of all the hardware features (presence, type, address, and characteristics). Control panel. A panel that contains switches and indicators for the customer's operator and service personnel. Control program. A computer program desi...

  • Page 89

    Direct-attached terminal do not provide those timing signals. Line. See transmission line . Line adapter (la). The part of the tss, hptss, or trss that scans and controls the transmission lines. Also called scanner . For the tss the line adapters are low-speed scanners (lsss). For the hptss the line...

  • Page 90

    Program temporary fix. A temporary solution or by-pass of a problem diagnosed by ibm as resulting from a defect in a current unaltered release of the program. Ptt (post telephone and telegraph). A generic term for the government-operated common carriers in countries other than the u.S.A. And canada....

  • Page 91

    X.20 bis, 21, 21 bis, 21 native, 24, 25. Ccitt recommendations on transmission interfaces. Glossary x-9.

  • Page 92

    X-10 ibm 3745 models 130, 150, 170: introduction.

  • Page 93: Bibliography

    Bibliography user task models 130, 150, and 170 models 210, 310, 410, and 610 evaluating and configuring to evaluate and learn about the 3745 capabilities introduction, ga33-0138 introduction, ga33-0092 to configure a 3745 configuration program, ga33-0093 preparing your site to plan the physical sit...

  • Page 94

    X-12 ibm 3745 models 130, 150, 170: introduction.

  • Page 95: Index

    Index numerics 2701 3-2 2702 3-2 2703 3-2 308x 1-7, 4-3 3090 1-7, 4-3, 4-4 3101 4-25 3151 4-25 3161 4-25 3163 4-25 3720/3721 1-1 3725/3726 1-1 3727 4-25 4341 1-7, 4-3 4361 1-7, 4-3 4381 1-7, 4-3 5841 4-25 5842 4-25, 4-26 5869 4-16 7427 4-26 937x 1-7, 4-3, 4-4 a access methods 3-6 access, user 2-2, 6...

  • Page 96

    Cycle utilization counter 4-2 d data streaming 4-4 dce a-1 disk, capacity 4-22 diskette, capacity 4-22 display station 3151 4-25 3161 4-25 3727 4-25 dma description 4-3 dma bus description 4-3 dte a-1 dump 4-27, 5-4 storage, automatic 4-29 dump, facilities 5-6 e ecc 2-1, 4-3 eid 4-30 ep 3-2, 3-5 err...

  • Page 97

    Netview (continued) performance monitor (npm) 3-6 network integration, network characteristics 6-5 management 3-6 network extension facility see nef network routing facility see nrf network terminal option see nto nmvt 5-3 non-sna interconnection see nsi npsi 3-2 nrf 3-2 nsi 3-5 nto 3-2 o online tes...

  • Page 98

    Tpf 3-5 tps 4-3 description 4-4 trace, facilities 5-6 transaction processing facility see tpf transmission mode asynchronous a-1 synchronous a-1 trss 4-6, 4-18 tss 4-6, 4-7 two-processor switch see tps u upgrading the 3745 6-5 usability, highlights 2-2 utility program 4-28 v v.25 bis 4-12 vtam 3-6 w...

  • Page 99

    Foils for customer presentations the figures in the following pages are detachable in order to make foils for internal presentations by the network specialists to the various customer departments. The customer is authorized to reproduce these pages for its own internal use only. Copyright ibm corp. ...

  • Page 100

    X-18 ibm 3745 models 130, 150, 170: introduction.

  • Page 101

    Readers' comments — we'd like to hear from you ibm 3745 communication controller models 130, 150, and 170 introduction publication no. Ga33-0138-2 please send us your comments concerning this book. We will greatly appreciate them and will consider them for later releases of the present book. If you ...

  • Page 102

    Cut or fold along line cut or fold along line readers' comments — we'd like to hear from you ga33-0138-2 ibm fold and tape please do not staple fold and tape place postage stamp here ibm france centre d'etudes et recherches service 0798 - bp 79 06610 la gaude france fold and tape please do not stapl...

  • Page 104

    Ibm printed in the united states of america on recycled paper containing 10% recovered post-consumer fiber. Ga33-ð138-2.