THE BURROUGHS B25 FAMILY OF UNIVERSAL WORKSTATIONS IS COMPOSED OF:

A LARGE VARIETY OF SYSTEM HARDWARE MODULES DESIGNED:

• AS SYSTEM BUILDING BLOCKS
• TO SUPPORT NUMEROUS CONFIGURATIONS
• TO INTERCONNECT TO FORM A UNIVERSAL WORKSTATION
• TO BE CUSTOMER INSTALLED

A REAL-TIME, MULTI-TASKING, MULTI-USER OPERATING SYSTEM (BTOS)
 

B25 FAMILY MODULES GENERAL DESCRIPTION
PROCESSOR MODULES
USING INTEL iAPX VLSI 80186, 80286, 80386, 80287 MICROPROCESSORS
RANDOM ACCESS MEMORY (RAM) FROM 256 KiloBytes TO 4 MegaBytes

VIDEO DISPLAY MODULES
VARIOUS HIGH-RESOLUTION VIDEO DISPLAYS IN COLOR OR MONOCHROME
FREE STANDING VIDEO DISPLAYS WITH TILT/SWIVEL BASE

GRAPHICS MODULES
CHARACTER AND BIT MAPPED GRAPHICS CONTROLLERS
SUPPORTS COLOR AND MONOCHROME VIDEO DISPLAYS

STORAGE MODULES
FLOPPY, HARD/FLOPPY AND HARD DISK MODULES AND TAPE BACKUP MODULE
DISK MODULES FROM 630 KB TO 68 MB, 272 MB MAXIMUM PER WORKSTATION

COMMUNICATIONS MODULES
COMMUNICATIONS EXTENSIONS TO STANDARD B25 PROCESSOR CAPABILITIES
INCREASES RS232/V.24 AND LOCAL AREA NETWORK CAPABILITIES

KEYBOARD MODULES
TYPEWRITER STYLE, SLIM LINE WITH SCULPTURED SURFACES AND KEYS
DETACHABLE, ACCOMMODATING BOTH LEFT AND RIGHT-HANDED OPERATORS

POWER MODULES
INDEPENDENT LOW VOLTAGE POWER MODULES
NUMBER OF B25 MODULES DETERMINE NUMBER OF POWER SUPPLY MODULES
 

B25 FAMILY MODULE SUMMARY

CENTRAL PROCESSOR MODULES
B26 CPU CT 80186 BASED (X-BUS)
B27 CPU, B27 CLS UNISYS 80186 BASED (F-BUS)
B28 CPU, B28 MCP CT 80286 BASED (X-BUS)

PROCESSOR MEMORY MODULES
B26 256 256 KB RAM EXPANSION MODULE
B26 512 512 KB RAM EXPANSION MODULE
B28 1MB 1 MB RAM EXPANSION MODULE
B27 512 512 KB RAM EXPANSION MODULE

DISK MODULES
B25 M1 (X) DUAL FLOPPY
B25 M4, B25 MX4 (X) 20 MB FIXED/FLOPPY, EXPANSION
B25 MU5, B25 MX5 (X) 40 MB FIXED WITH CONTROL, EXPANSION

B27 SF1, B27 SF4 (F) SINGLE, DUAL FLOPPY
B27 M4, B27 MX4 (F) 20 MB FIXED/FLOPPY, EXPANSION
B27 MC5, B27 MX5 (F) 40 MB FIXED WITH ECC, EXPANSION

VIDEO MODULES
B25 D1, B25 D2, (X) 12 INCH, 14 INCH MONOCHROME
B25 CD3 (X) 14 INCH COLOR

B27 MD1, B27 MD2, (F) 12 INCH, 14 INCH MONOCHROME
B27 CD3 (F) 14 INCH COLOR

GRAPHICS MODULES
B25 GRA (X) MONOCHROME AND COLOR GRAPHICS
B27 GRM, B27 GRC (F) MONOCHROME, COLOR GRAPHICS

KEYBOARDS / I-BUS MODULES
B25 K1, B25 K2, B25 K3 STANDARD MULTILINGUAL KEYBOARDS
B25 MOU TWO BUTTON MOUSE

DEPENDENT INTELLIGENT PROCESSOR MODULES
B25 1PC (X) IBM PC COMPATIBILITY

COMMUNICATIONS MODULES
B25 FXC (X) X-BUS TO F-BUS CONVERTER
B27 LN3 (F) 10 MBits TRIAX LOCAL AREA NETWORK

TAPE MODULES
B25 TS (X) 1/4 INCH TAPE BACKUP
B27 TS1 (F) 1/4 INCH TAPE BACKUP

POWER MODULES
B25 PS STANDARD POWER SUPPLY, 10 UNITS
B25 PS1 HIGH POWER SUPPLY, 15 UNITS
B25 LC LINE POWER CORD
 

B25 FAMILY WORKSTATION PRINTER SUMMARY

B25 FAMILY
B 9251-1 230 CPS, PARALLEL DOT MATRIX
B 9252 150 CPS, PARALLEL DOT MATRIX
B 9253 120 CPS, PARALLEL DOT MATRIX
AP 1300-20 35 CPS, SERIAL LETTER QUALITY
AP 1302 35 CPS, SERIAL LETTER QUALITY
AP 1303 20 CPS, SERIAL LETTER QUALITY
AP 1305 80 COL, 55 CPS, SERIAL LETTER QUALITY
AP 1311 COLOR, 160/40 CPS, PARALLEL DOT MATRIX
AP 1314 80 COL, 200/40 CPS, DOT MATRIX
AP 1351 COLOR, 200/110/35 CPS, PARALLEL DOT MATRIX
AP 1354 132 COL, 200/40 CPS, DOT MATRIX
AP 9208 8 PPM CUT-SHEET, NON-IMPACT
 

LINE OF BUSINESS HARDWARE SUMMARY

FINANCIAL LINE OF BUSINESS

VIDEO MODULES
B25 D5, B25 D6 (X) 9 INCH MONOCHROME WITH OR W/O ARM
B27 MD5, B27 MD6 (F) 9 INCH MONOCHROME WITH OR W/O ARM

DEPENDENT INTELLIGENT COMMUNICATIONS MODULES
B25 TEM (X) TELLER EXTENSION MODULE
B27 TEM (F) TELLER EXTENSION MODULE
B25 DES NBS DES ENCRYPTION FOR B25/B27 TEM

KEYBOARDS / I-BUS MODULES
B25 K4 NUMERIC FUNCTION KEYBOARD
EF 4551 B25 K4 MAGNETIC CARD READER (MCR)
EF 4552 B25 K1, K2, K3 MCR

CER MODULES
I - 269 SWISS BANK MCR
I - 281 (X) BNP HARD-ID

PRINTERS
EF 4560 80 COL, 200 CPS DRAFT, DOT MATRIX
 
 

AIRLINES LINE OF BUSINESS

KEYBOARDS / I-BUS MODULES
B25 ALC AIRLINES ALC TERMINAL BASED

CER MODULES
I - 283 (F) SWISS AIR HARD-ID
 
 

B25 FAMILY PROCESSOR MODULES
INTEL iAPX 80X86 VLSI MICROPROCESSOR AND SUPPORTING LOGIC FOR:
INTERRUPT CONTROL

• EXTERNAL AND INTERNAL HARDWARE INTERRUPTS
• SOFTWARE CONTROLLED PSEUDO-INTERRUPTS

• DIRECT MEMORY ACCESS (DMA) INTERFACE
• RAM PARITY CHECK

• TWO INTRINSIC RS232/V.24 DATA COMMUNICATIONS INTERFACES
• INTRINSIC CENTRONICS COMPATIBLE PARALLEL PRINTER INTERFACE
• INTRINSIC RS422 CLUSTER INTERFACE

• SERIAL I-BUS INTERFACE

• LOADABLE SOFT FONTS
• VIDEO CHARACTER ATTRIBUTES

• X-BUS 16 BIT INTERFACE (B26 & B28)
• F-BUS 16 BIT INTERFACE (B27)

• INTRINSIC RAM OF 256 KByte
• TWO RS232/V.24 SERIAL INTERFACES (AGGREGATE 19.2 Kbps)
• ONE CENTRONICS COMPATIBLE PRINTER INTERFACE
• ONE RS422 CLUSTER INTERFACE (1.8 MBits/SECOND)
• BOOTSTRAP ROM OF 8 KByte

B27 CPU
INTEL 80186 (8 MHz) BASED EXPANDABLE PROCESSOR MODULE WITH:

• INTRINSIC RAM OF 512 KByte
• TWO RS232/V.24 SERIAL INTERFACES (AGGREGATE 19.2 Kbps)
• ONE CENTRONICS COMPATIBLE PRINTER INTERFACE
• ONE RS422 CLUSTER INTERFACE (1.8 MBits/SECOND)
• ONE FLOPPY DISK-ON-DESK INTERFACE
• BOOTSTRAP ROM OF 8 KByte

B27 CLS
INTEL 80186 (8 MHz) BASED CLUSTER PROCESSOR MODULE WITH:

• INTRINSIC RAM OF 512 KByte
• 2 RS232/V.24 SERIAL INTERFACES (AGGREGATE 19.2 KBits/SECOND)
• ONE CENTRONICS COMPATIBLE PRINTER INTERFACE
• ONE RS422 CLUSTER INTERFACE (1.8 MBits/SECOND)
• BOOTSTRAP ROM OF 8 KByte

B28 CPU
INTEL 80286 (8 MHz) BASED EXPANDABLE PROCESSOR MODULE WITH:

• INTRINSIC RAM OF 1 MByte
• TWO RS232/V.24 SERIAL INTERFACES (AGGREGATE 19.2 Kbps)
• ONE CENTRONICS COMPATIBLE PRINTER INTERFACE
• ONE RS422 CLUSTER INTERFACE (1.8 MBits/SECOND)
• BOOTSTRAP ROM OF 8 KByte

B28 MCP
INTEL 80286 (8 MHz) BASED EXPANDABLE PROCESSOR MODULE WITH:

• INTEL 80287 (5 MHz) MATH COPROCESSOR
• INTRINSIC RAM OF 1 MByte
• TWO RS232/V.24 SERIAL INTERFACES (AGGREGATE 19.2 Kbps)
• ONE CENTRONICS COMPATIBLE PRINTER INTERFACE
• ONE RS422 CLUSTER INTERFACE (1.8 MBits/SECOND)
• BOOTSTRAP ROM OF 8 KByte

B25 1PC
INTEL 80186 BASED SLAVE PROCESSOR MODULE WITH 768 KByte RAM
PROVIDES AN IBM PC COMPATIBLE ENVIRONMENT
SUPPORTS MS-DOS 3.1 OPERATING SYSTEM AND UTILITIES
SLAVE PROCESSOR MODULE TO:

• B26 CPU
• B28 CPU
• B28 MCP

• UP TO 2320 CHARACTERS ON 29 LINES BY 80 COLUMNS WITH
• CHARACTER CELL SIZE OF 9 X 12 PIXELS AND
• CHARACTER ATTRIBUTES OF: UNDERLINE BLINK BRIGHTHALF-BRIGHT REVERSE VIDEO STRUCK-THROUGH

B27 MD1 - B27 MD2
12 / 14 INCH FREE STRANDING MONOCHROME VIDEO DISPLAY
OPTIONAL B27 GRM BIT MAP GRAPHICS MODULE
BRIGHTNESS AND CONTRAST CONTROL
CONNECTS TO ALL B27 PROCESSORS
REFRESH RATE 60 Hz NON-INTERLACED
GREEN P39 PHOSPHOR
NON-GLARE ETCHED SCREEN
SOFTWARE SELECTABLE DISPLAY OF

• UP TO 2720 CHARACTERS ON 34 LINES BY 80 COLUMNS WITH CHARACTER CELL SIZE OF 9 X 14 PIXELS AND
• UP TO 4488 CHARACTERS ON 34 LINES BY 132 COLUMNS WITH CHARACTER CELL SIZE OF 6 X 14 PIXELS AND
• CHARACTER ATTRIBUTES OF: UNDERLINE BLINK BRIGHT HALF-BRIGHT REVERSE VIDEO STRUCK-THROUGH DOUBLE WIDE DOUBLE HIGH

B25 CD3
14 INCH FREE STRANDING COLOR VIDEO DISPLAY
REQUIRES B25 GRA BIT MAP GRAPHICS MODULE
REQUIRES SEPARATE AC POWER SOURCE
BRIGHTNESS CONTROL
USABLE WITH ALL B26 AND B28 SYSTEMS
REFRESH RATE 60 Hz NON-INTERLACED
EIGHT COLORS SELECTED FROM A PALETTE OF 64 COLORS
NON-GLARE ETCHED SCREEN
SOFTWARE SELECTABLE DISPLAY OF

• UP TO 2320 CHARACTERS ON 29 LINES BY 80 COLUMNS WITH CHARACTER CELL SIZE OF 9 X 12 PIXELS AND
• CHARACTER ATTRIBUTES OF: UNDERLINE BLINK BRIGHT HALF-BRIGHT REVERSE VIDEO

B27 CD3
14 INCH FREE STRANDING COLOR VIDEO DISPLAY
REQUIRES B27 GRC BIT MAP COLOR GRAPHICS MODULE
REQUIRES SEPARATE AC POWER SOURCE
BRIGHTNESS AND CONTRAST CONTROL
REFRESH RATE 60 Hz NON-INTERLACED
16 COLORS SELECTED FROM A PALETTE OF 64 COLORS
NON-GLARE ETCHED SCREEN
SOFTWARE SELECTABLE DISPLAY OF

• UP TO 2720 CHARACTERS ON 34 LINES BY 80 COLUMNS WITH CHARACTER CELL SIZE OF 9 X 14 PIXELS AND
• CHARACTER ATTRIBUTES OF: UNDERLINE BLINK BRIGHT HALF-BRIGHT REVERSE VIDEO

B25 FAMILY GRAPHICS MODULES
B25 GRA
MONOCHROME OR COLOR VIDEO DISPLAY GRAPHICS MODULE
USES THE NEC uPD7220 GRAPHICS PROCESSOR
RAM MEMORY OF 128 KByte WITH ONE PAGES OF DISPLAY
WITH A COLOR DISPLAY, SUPPORTS 8 COLORS FROM A 64 COLOR PALLET
BIT MAPPED GRAPHICS SUPPORT OF

• RESOLUTION OF 720 X 348 PIXELS
• LINE DRAWING, CHARACTER AND RASTER OPERATIONS

B27 GRM
MONOCHROME VIDEO DISPLAY GRAPHICS MODULE
USES THE NEC uPD7220 GRAPHICS PROCESSOR
RAM MEMORY OF 128 KByte DUAL-PORTED WITH TWO PAGES OF DISPLAY
BIT MAPPED GRAPHICS SUPPORT OF

• RESOLUTION OF 720 X 348 PIXELS IN 80 COLUMN MODE
• RESOLUTION OF 792 X 348 PIXELS IN 132 COLUMN MODE
• LINE DRAWING, CHARACTER AND RASTER OPERATIONS

CONNECTS TO B27 CPU
 

B27 GRC
COLOR VIDEO DISPLAY BIT MAPPED GRAPHICS MODULE
USES THE NEC uPD7220 GRAPHICS PROCESSOR
RAM MEMORY OF 384 KByte DUAL-PORTED WITH TWO PAGES OF DISPLAY
BIT MAPPED GRAPHICS SUPPORT OF

• RESOLUTION OF 720 X 348 PIXELS
• LINE DRAWING, CHARACTER AND RASTER OPERATIONS

B25 FAMILY STORAGE MODULES
B27 SF1
SINGLE FLOPPY STAND-ALONE SUBSYSTEM (DISK-ON-DESK)
SUBSYSTEM CONTAINS:

• ONE 5 1/4 INCH, SLIM LINE DRIVE,
• 630 KByte FORMATTED (1 MB CAPACITY)
• 96 TPI, 250 KBits/SECOND TRANSFER RATE
• 94 MS AVERAGE ACCESS

B25 M1 - B27 M1
DUAL FLOPPY STORAGE MODULE
STORAGE MODULE CONTAINS:

• TWO 5 1/4 INCH, SLIM LINE DRIVE
• 630 KByte FORMATTED (1 MB CAPACITY)
• 96 TPI, 250 KBits/SECOND TRANSFER RATE
• 94 MS AVERAGE ACCESS

B25 M4 - B27 M4
HARD/FLOPPY (20 MB) DISK STORAGE MODULE
STORAGE MODULE CONTAINS:

• ONE 5 1/4 INCH, SLIM LINE DRIVE,
• 630 KByte FORMATTED (1 MB CAPACITY)
• 96 TPI, 250 KBits/SECOND TRANSFER RATE
• 94 MS AVERAGE ACCESS
• ONE 5 1/4 INCH WINCHESTER DRIVE
• 20 MB FORMATTED (26 MB CAPACITY)
• 5 MBits/SECOND TRANSFER
• 85 MS AVERAGE ACCESS

B25 MX4 - B27 MX4
HARD (20 MB) DISK EXPANSION STORAGE MODULE
STORAGE MODULE CONTAINS:

• ONE 5 1/4 INCH WINCHESTER DRIVE
• 20 MB FORMATTED (26 MB CAPACITY)
• 5 MBits/SECOND TRANSFER
• 85 MS AVERAGE ACCESS

B25 MU5 - B27 MC5
HARD (40 MB) DISK UPGRADE STORAGE MODULE
STORAGE MODULE CONTAINS:

• ONE 5 1/4 INCH WINCHESTER DRIVE
• 40 MB FORMATTED (42.6 MB CAPACITY)
• 5 MBits/SECOND TRANSFER
• 30 MS AVERAGE ACCESS

B25 MX5 - B27 MX5
HARD (40 MB) DISK EXPANSION STORAGE MODULE
STORAGE MODULE CONTAINS:

• ONE 5 1/4 INCH WINCHESTER DRIVE
• 40 MB FORMATTED (42.6 MB CAPACITY)
• 5 MBits/SECOND TRANSFER
• 30 MS AVERAGE ACCESS

B25 TS - B27 TS1
MAGNETIC TAPE (1/4 INCH) STREAMER STORAGE MODULE
STORAGE MODULE CONTAINS:

• MAGNETIC 1/4 INCH TAPE DRIVE
• 60 MBytes CAPACITY (MEDIA DEPENDENT)
• 90 K BYTES/SECOND TRANSFER RATE
• 90 INCHES/SECOND TAPE SPEED

MODULE UTILIZED FOR HIGH SPEED HARD DISK BACKUP
 
 

B25 FAMILY DATA COMMUNICATIONS MODULES
DATA COMMUNICATIONS MODULES THAT EXPAND THE CAPABILITIES OF THE B25

B27 LN3
INTELLIGENT LOCAL AREA NETWORK (LAN) MODULE
LAN MODULE CONTAINS A INTEL 80186 MICROPROCESSOR WITH 512 KB RAM

• REDUCES THE OVERHEAD BURDEN ON THE B25 CENTRAL PROCESSOR

• SUPPORTS RAW DATA RATE OF 10 MBits/SECOND
• USES CSMA/CD NETWORK ACCESS PROTOCOL
• USES IEEE 802.3 NETWORK DATA PROTOCOL
• PHYSICAL TRANSPORT MEDIA IS TRIAX CABLE (50 OHM)

• MODULE INSTALLED AT EACH LAN NETWORK WORKSTATION
• EACH WORKSTATION ON THE LAN IS ASSIGNED A NODE NAME

B27 LN3 LAN NETWORK
A LAN NETWORK IS MADE UP OF ONE OR MORE LAN NETWORK SEGMENTS
A LAN NETWORK SEGMENT IS MADE UP OF:

• CABLE SEGMENTS BETWEEN NODES
• MINIMUM CABLE SEGMENT IS 0.5 METERS (2 FEET)
• MAXIMUM CABLE SEGMENT IS 185 METERS (606 FEET)
• TERMINATORS
• USED AT ALL END POINTS OF THE TOTAL LAN NETWORK
• CONNECTIONS
• MAXIMUM OF 26 CONNECTIONS ON A LAN NETWORK SEGMENT
• EACH B27 LN3 LAN MODULE (NODE) COUNT AS ONE CONNECTION

• INTERCONNECTS LAN SEGMENTS/LINKS TO FORM LARGER NETWORKS
• A LAN LINK IS A SEGMENT WITH NO NODES
• COUNTS AS ONE CONNECTION ON THE LAN NETWORK SEGMENT
• WHEN USING LAN REPEATERS IN A STRAIGHT LINE TOPOLOGY
• SAME CONFIGURATION GUIDELINES AS SINGLE LAN NETWORK SEGMENT,
• PLUS:
• TWO NODES CAN NOT HAVE MORE THEN THREE SEGMENTS/LINKS BETWEEN THEM
• MAXIMUM LAN LENGTH IS 925 METERS (3000 FEET)
• MAXIMUM OF 74 NODES CAN BE CONFIGURED

• SAME CONFIGURATION GUIDELINES AS STRAIGHT LINE TOPOLOGY,
• PLUS:
• A SEGMENT CAN HAVE A MAXIMUM OF 26 LAN REPEATERS
• MAXIMUM OF 26 SEGMENTS OF 25 WORKSTATIONS EACH (650 NODES)

SLIM-LINE KEYBOARDS
TYPEWRITER STYLE
SCULPTURED SURFACES
CONTOURED KEY CAPS
PALM REST FOR OPERATOR COMFORT
CONNECTED TO THE VIDEO BY A COILED CABLE
DETACHABLE FROM THE VIDEO
CONNECTOR FOR ATTACHMENT OF I-BUS DEVICES

• MOUSE, LIGHT PEN

B25 K1
THE 98 KEY K1 KEYBOARD MODULE INCLUDES:

• 54 KEY STANDARD 'TYPEWRITER STYLE' SECTION
• 12 KEY NUMERIC PAD
• 22 STATUS/CURSOR/TEXT CONTROL KEYS
• 10 VARIABLE FUNCTION KEYS
• EIGHT KEYS WITH LED INDICATORS

B25 K2
THE 110 KEY K2 KEYBOARD MODULE INCLUDES:

• 52 KEY STANDARD 'TYPEWRITER STYLE' SECTION
• 18 KEY NUMERIC PAD
• 30 STATUS/CURSOR/TEXT CONTROL KEYS
• 10 VARIABLE FUNCTION KEYS
• EIGHT KEYS WITH PROGRAMMABLE LED INDICATORS

B25 K3
THE 112 KEY K3 KEYBOARD MODULE INCLUDES:

• 52 KEY STANDARD 'TYPEWRITER STYLE' SECTION
• 18 KEY NUMERIC PAD
• 32 STATUS/CURSOR/TEXT CONTROL KEYS
• 10 VARIABLE FUNCTION KEYS
• EIGHT KEYS WITH PROGRAMMABLE LED INDICATORS
• FIVE PROGRAMMABLE DATA COMMUNICATIONS LED INDICATORS

B25 K4
THE 59 KEY DEFINABLE K4 KEYBOARD INCLUDES:

• 12 NUMERIC KEYS
• 47 UN-LABELED KEYS
• SIX PROGRAMMABLE LED INDICATORS

THE NUMBER OF POWER MODULE IS DETERMINED BY THE B25 CONFIGURATION

EACH B25 MODULE REQUIRES A CERTAIN AMOUNT OF POWER (POWER CODE)

THE TOTAL OF ALL POWER CODES FOR A CONFIGURATION,
DETERMINE THE NUMBER OF POWER MODULES REQUIRED

TWO POWER MODULES AVAILABLE:
B25 PS
SUPPLIES 10 POWER UNITS

B25 PS1
SUPPLIES 15 POWER UNITS
 
 

B25 FAMILY WORKSTATION SYSTEM PRINTERS

AP 1351-1 FCS: 12/86
HIGH SPEED DOT MATRIX PRINTER
PRINT SPEED:

• DRAFT 400 CPS
• CORRESPONDENCE 300 CPS
• NEAR LETTER QUALITY 100 CPS

• AUTO UNDERSCORE D O U B L E W I D E C H A R A C T E R S DOUBLE STRIKE
• EMPHASIZE _SUBSCRIPT
• AUTO JUSTIFICATION ^SUPERSCRIPT