IBM 3790 Communications System

~ tbe bost computer. When equipped witb tbe Data Link

All operations are executed under program control. The 3790 receives its operating software from tbe host computer via the communications facility. Following receipt of tbe software, the 3790 operates independently of tbe host system.

All 3790 programs are compiled and can be tested on the host System/370 computer prior to use on the remote 3790. The application programs are prepared by tbe user via a System/370 assembler and statements dermed in an IBM-supplied macro library. Program debugging is performed with tbe aid of a utility package, Program Validation Service (PVS), on the bost computer. PVS also formats 3790 programs for storage at tbe bost computer and later trans-mission to tbe 3790. Subsystem Support Services (SSS), another utility, controls 3790 program libraries at the host site and controls tbe transmission of 3790 programs from tbe host computer to the 3790.

COMPONENTS

3793 KEYBOARD-PRINTER: The 3793 is a modified Selectric II typewriter terminal oriented toward the functions of the 3790 system. It contains a serial impact printer that prints full cbaracters at speeds up to 15.5 cbaracters per second; input symbols total 88. Vertical forms movement and print positioning can be performed under program control.

The printer accommodates friction-fed or pin-fed (optional) continuous forms up to 15.5 inches wide; tbe printing widtb is 13 inches. Horizontal spacing is 10 to 12 cbaracters per incb;

vertical spacing is 6 lines per incb.

The typewriter-style EBCDIC keyboard includes operator guidance lights and switches.

Characters/ display: 480 1920

Unes/ display: 1'1. 24

Characters/line: 40 80

A character set of 64 ASCII characters, including upper case alphabetics, numerics, and special symbols is displayed in green against a dark background. Each character is formed by a 7-by-9 dot matrix.

#1515 Local Channel Attachment

#3701 EIA Interface

1200 bps Integrated Modem:

#5500 Non·switched

#5501 Switched

·Includes maintenance.

Many keyboards are available for the 3'1.77 Display Station, but only tbe 66-or 7!!-key EBCDIC typewriter-style keyboard can be used when the 3277 is employed as an operator station attached to tbe 3791 Controller. The 78-key version of the typewriter-style keyboard includes 1'1. Program Function keys, which are dermed by the application program.

Not all features for tbe 3'1.77 display stations are supported when attacbed to a 3791 controller. The following features are supported: Audible Alarm, Operator Identity Card Reader, Keyboard Numeric Lock, and Security Keylock.

See Report C25-491-101 for complete details on the 3'1.70 components, including 3277 display stations and 3l84, 3'1.116.

and 3'1.88 printers.

PRINTED OUTPUT: Printed copy is produced at a rated speed of up to ISS Ipm with a 48-cbaracter print belt, 1'1.0 Ipm with a 64 character set, and 80 Ipm witb a 96 character set by tbe #4710 and #4711 line printers for tbe 3791 or #4712 and

#4713 for the 3792. These printers have 80 or 13'1. print positions and accommodate 6-part, continuous pin-fed forms up to 8 incbes (80 columns) or 14'Vs inches (13'1. columns) in width. Horizontal and vertical spacings are 10 characters per inch and 6 lines per inch, respectively. The #471S printer available with the 3791 operates at 410 Ipm with a 48 character set, 300 Ipm with a 64 character set, and '1.30 Ipm with a 96 character set. This printer provides 132 positions. Other characteristics are similar to the printers above except that program selection between 6 and 8 lines per inch vertical spacing is included for Configuration Support #9165 and

#9169.

MAGNETIC TAPE INPUT/OUTPUT: The IBM 3411 Magnetic Tape Unit and Control model 1 can provide input and output to a 3791 Control Unit. Additional magnetic tape capacity is provided by attaching 3410 Magnetic Tape units via the 3411. A total offour magnetic tape units per system are supported.

DATA LINK ADAPTER: The Data link Adapter permits attaching the 3'1.76 Control Display Stations plus 3'1.78 Display Stations and 3'1.87 or 3'1.89 printers to a 3791 via non-switcbed communications lines. Only SDLC communica-tions protocol and the 1920 character screen format are supported. A maximum of live Data Unk Adapter features can be attached to a 3791 controller. The maximum number of 3'1.76 Control Display stations permitted on each Data Link Adapter is also five. A maximum of 80 units in any combination are permitted on the live Data Link adapters.

PRICING

All 3790 components, except the '1.741 terminal, are available under the terms of IBM's Rental or Lease A~eement (LRA) or for purchase. LRA includes prime-sbift maintenance; a separate contract is available for purcbased units.

Monthly

OCTOBER 1979 _@1979 DATAPRO RESEARCH CORPORATION, DELRAN, NJ 08075 USA REPRODl1CTlON PROHIBITED

C21-491-204 Programmable Terminals

Monthly Rental*

Short Ext.

Term Term Purchase

SDlC Feature:

#6301 With Business Machine Clock (for 1200 bps) 19 16 670

#6302 Without Business Machine Clock (for up to 2400 bps) 12 10 450

#6303 Without Business Machine Clock (for up to 9600 bps) 36 31 1,200

#6350 Security Keylock 35** 35** 35

Control Storage:

#1590 Control Storage Expansion 32 27 1,055

Control Storage Increments:

#1602 Type I, 8K bytes 33 28 637

#1603 Type lA, 16K bytes 60 51 1,170

#1612 Type II, 8K bytes 33 28 637

#1613 Type 11A, 16K bytes 60 51 1,170

Additional Disk Heads for 3791 lB, lC, 2A, or 2B 32 27 1,080

Attachment

Features-#7911 3270 Attachment, First 39 33 1,300

#7912 3270 Attachment, Additional 33 28 1,100

#7900 3792 Attachment 36 31 1,300

#7901 3793 Attachment, First 36 31 1,300

#7902 3793 Attachment, Second 36 31 1,300

#7903 3793 Attachment. Additional 36 31 1,300

#7840 Magnetic Tape Attachment 190 162 6,200

Une Printers for 3791:

#4710 155 Ipm, 80 print positions 184 157 6,175

#4711 155 Ipm, 132 print positions 208 177 6,825

#4715 410 Ipm, 132 print positions 368 313 11,960

3792 Auxiliary Control Unit 209 178 6,900

#4712 Une Printer, 155 Ipm, 80 print positions 287 244 9,500

#4713 Une Printer, 155 Ipm, 132 print poSitions 321 273 10,500

#7901 3793 Attachment 36 31 1,300

#1622 Control Storage Increment, 8K bytes 33 28 637

Communications

Features-#1021 Adapter Base 51 43 1,700

#1081 Asynchronous Communications Control 19 16 650

#3701 EIA Interface 12 10 400

#5400 leased Une Adapter 19 16 650

#6350 Security Keylock 35** 35** 35

#4450 Forms Stand 54** 54** 54

3793 Keyboard Printer 123 105 3.450

#5560 Power Une Keylock 75** 75** 75

3411 Modell Magnetic Tape Unit and Control (requires #7003 and 476 400 12.460

#3211 or #3221)

3410 Modell Magnetic Tape Unit (requires #3211 or #3221) 216 181 5,655

#7003 3790 Attachment 86 72 2,315

#3211 Single density; 1600 bpi PE 62 52 1,835

#3221 Dual Density; 600/1600 bpi 92 77 2,645

*Includes maintenance

**Single use chargell

Monthly Maint.

3.00 2.50 11.00

5.50 5.00 10.50 5.00 10.50 17.00

5.00 3.00 4.00 3.00 5.50 3.00 8.00 58.50 62.00 119.00 34.50 56.00 59.50 3.00 5.00 1.00 3.00 4.00 5.00

29.00

99.50 64.50 3.50 9.50 38.00

OCTOBER 1979

~ the host computer. When equipped with the Data Link Adapten, up to 80 additional remote devices can be con-troUed. As an ahemative, the data can be transmitted to the host computer as it is edited (inquiry session), without being stored on diskettes. Magnetic tape can also provide input to the system.

All operations are executed under program control. The 3790 receives its operating software from the host computer via the communications facility. Following receipt of the software, the 3790 operates independently of the host system.

All 3790 programs are compiled and can be tested on the host System/370 computer prior to use on the remote 3790. The application programs are prepared by the user via a System/370 assembler and statements dermed in an IBM-supplied macro library. Program debugging is performed with the aid ofa utility package, Program Validation Service (PVS), on the host computer. PVS also formats 3790 programs for storage at the host computer and later trans-mission to the 3790. Subsystem Support Services (SSS), another utility. controls 3790 program libraries at the host site and controls the transmission of 3790 programs from the host computer to the 3790.

COMPONENTS

3793 KEYBOARD-PRINTER: The 3793 is a modified Selectric II typewriter terminal oriented toward the functions of the 3790 system. It contains a serial impact printer that prints full characters at speeds up to 15.5 characters per second; input symbols total 88. Vertical forms movement and print positioning can be performed under program control.

The printer accommodates friction-fed or pin-fed (optional) continuous forms up to 15.S inches wide; the printing width is 13 inches. Horizontal spacing is 10 to 12 characters per inch;

vertical spacing is 6 lines per inch.

The typewriter-style EBCDIC' keyboard includes operator guidance lights and switches.

3277 DlSPtA Y STATION: The 3277 is a CRT display unit with a l4-inch (diagonal measurement) CRT screen. The display screen arrangement is dependent on the model. as shown below.

3277 Display: Modell Model 2

Characters/ display: 480 1920

Lines/display: 12 24

Characters/line: 40 80

A character set of 64 ASCII characters, including upper case alphabetics. numerics. and special symbols is displayed in green against a dark background. Each character is formed by a 7-by-9 dot matrix.

3791 Controllers-Model1C Model2A Model 28 Features

#1515 Local Channel Attachment

#3701 EIA Interface

1 200 bps Integrated Modem

#5500 Non-swItched

#5501 SWItched

'Includes maIntenance

C21-491-203 Programmable Tanninsls

Many keyboards are available for the 3277 Display Station, but only the ~ or 78-key EBCDIC typewriter-style keyboard can be used when the 3277 is employed as an operator station attached to the 3791 Controller. The 78-key venion of the typewrlter-style keyboard includes 12 Program Function keys, which are defined by the application program.

Not all features for the 3277 display stations are supported when attached to a 3791 controller. The following features are supported: Audible Alarm, Operator Identity Card Reader, Keyboard Numeric Lock, and Security Keylock.

See Report C25-491-101 for complete details on the 3270 components, including 3277 display stations and 3284. 3286.

and 3288 printers.

PRINTED OUTPUT: Printed copy is produced at a rated speed of up to 155 Ipm with a 48-character print belt, 120 Ipm with a 64 character set. and 80 Ipm with a 96 character set by the #4710 and #4711 line printers for the 3791 or #4712 and

#4713 for the 3792. These printen have 80 or 132 print positions and accommodate 6-part, continuous pin-fed forms up to 8 inches (80 columns) or 14YR inches (132 columns) in width. Horizontal and vertical spacings are 10 characten per inch and 6 lines per inch. respectively. The #4715 printer available with the 3791 operates at 410 Ipm with a 48 character set, 300 Ipm with a 64 character set, and 230 Ipm with a 96 character set. This printer provides 132 positions. Other characteristics are similar to the printers above except that program selection between 6 and 8 lines per inch vertical spacing is included for Configuration Support #9165 and

#9169.

MAGNETIC TAPE INPUT/OUTPUT: The IBM 3411 Magnetic Tape Unit and Control model I can provide input and output to a 3791 Control Unit. Additional magnetic tape capacity is provided by attaching 3410 Magnetic Tape units via th~ 3411. A total offour magnetic tape units persystem are supported.

DATA LINK ADAPTER: The Data Link Adapter permits attaching the 3276 Control Display Stations plus 3278 Display Stations and 3287 or 3289 printers to a 3791 via non-switched communications lines. Only SDLC communica-tions protocol and the 1920 character screen format are supported. A maximum of five Data Link Adapter features can be attached to a 3791 controller. The maximum number of 3276 Control Display stations permitted on each Data Link Adapter is also five. A maximum of 80 units in any combination are permitted on the five Data Link adapters.

PRICING

All 3790 components. except the 2741 terminal. are available under the terms of IBM's Rental or Lease Al!reement (LRA) or for purchase. LRA includes prime-shift maintenance; a separate contract is available for purchased units.

Monthly Rental*

Short Ext. Monthly

Tenn Term Purchase Maint.

$ 636 $541 $19,630 $224.00

844 718 26,030 213.00

1,050 894 32.430 273.00

102 87 3,150 4.00

12 10 420 4.00

20 17 661 5.00

28 24 903 7.00

..

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C21-491-204 Programmable Terminals

Im Dokument IBM 3770 Family Batch Communications Terminals (Seite 69-72)