Epson Equity Ie Product Information Guide
Contents
1. DMA Channels Channel Not Used Spare FDD Controller HDD Controller Equity Series Computers 4 3 89 EQUITY le Hardware Interrupts Timer Output Keyboard Mouse RTC Video Reserved Serial Port 1 Hard Disk floppy Disk Parallel Port EQle 3 EQUITY le Installation Support Tips Power The Equity le has a power supply that is switchable between 115 V for USA and Canadian use and 230 V for use in other countries There is no manual switch as the power supply is auto sensing Video Adapters When using monitors other than the Epson VGA monitors with the Equity le it is recommended that you power the monitor on before the computer This ensures that the Equity le will automatically sense the monitor type at boot It is possible to use other optional video adapters in the Equity le However CGA is not an allowed option due to a register group conflict Installing Floppy Disk Drives When installing a floppy disk drive as drive B remember to set the drive select jumper to the second position and attach the pass through connector on the floppy drive controller cable to the drive not the end connector Installing Hard Disk Drives EQle 4 If you are having difficulty in formatting the hard disk drive try starting over with the Unconditional Format option in diagnostics When running a low level format on the Equity le optional hard disk drive set the interleave to 5 for optimum performa2. 331ooooooooooooQo p 25 0000000009000 14 PIN NO 1 SIGNAL NAME DIRECTION 1 STROBE l 0 2 do uo a3 Jo uo slo uo 5 o o uo 6 Jo uo z7 Jo s Jo uo 9 uo w ax 385 susv wz ere 5 i oder zb so awor o 5 emon e w w o az scw o 8 Jeo o 3 Jeo z eo 2 o O OoOO O O 1 22 Jeo Joo O 23 so ToO o 2 joo sz o Serial Port Connector DESCRIPTION Printer Data Bit 0 Printer Data Bit 1 Printer Data Bit 2 Printer Data Bit 3 Printer Data Bit 4 Printer Data Bit 5 Printer Data Bit 6 Printer Data Bit 7 Acknowledge Printer Bu End of Pap Printer Setect Auto Feed XT Printer Error Printer Initialize o o le le o lo g g 9j i e amp ja ja ja ja j ojo g l 8 la y 0000000000000 000000000000 l4 PIN NO SIGNAL NAME _OIRECTION Be cea NC es Joo o DESCRIPTION Not Connected Transmit Data Receive Data Request to Send Clear to Send Data Set Ready 9 j 4 jo amp w jn Signal Ground RLSO Not Connected Not Connected Tied to line 20 Not Connected Not Connected Not Connected Not Connected Not Connected Not Connected Not Connected Not Connected Data Terminai Read Not Connected Ring Indicator Not Connected Not Connected Not Connected 4 3 89 Keyboard or M KBO DAT
3. A ouse Connector Interchangeable DESCRIPTION Keyboard Data NC Reserved 5V Ground KBD CLK VO NC SHIELD Frame Ground Monitor Connector e e eeen RETURN feuuererunn 0 Meo e re o T eno o NC eo RETURN O DIRECTION Reserved MONITOR SENSE 0 MONITOR SENSE t MOS1 HSYNC HORIZONTAL SYNC VERTICAL SYNC VSYNC NC Reserved Monitor Type Sensing Pin 11 Pin12 MOS1 0 indicat STATUS No Monitor Connected Analog Color Monitor Analog Monochrome Monitor Other Monitor Type es a GROUND condition and 1 indicates an NC condition on the corresponding monitor pin Equity Series Computers l O Port Addresses 000 01F DMA Controller 8237A 5 020 O3F Interrupt Controller 040 05F Timer Counter 060 062 VO Ports 063 06F System Board Control and Status OSO OSF DMA Page Registers OAO OAF Interrupt Controller Extension OBO OBF Real Time Clock Command Status OEO OEF Real Time Clock Counter RAM 320 32F Fixed Disk 378 37F Parallel Port SCO 3DF Video Subsystem 3F0 3F7 Diskette 3FS 3FF Serial Port The NMI mark can be set and reset through system software as follows Writs hex SO to I O address hex AO enable NMI Write hex 00 to I O address hex AO enable NMI Note I O Address hex 000 to OFF are reserved for the system board I O
4. diskette drive arskette release button aisrette drive indicator right power button PITT Cede reset button hard disk indicator lignt power tight option card siots serial port AC intet parallel port keyboard port video port mouse port Computer Specifications CPU 8086 Microprocessor 0 wait states 8 10MHz switch selectable clock speeds 16 bit data bus Math Co Processor Socket for 8 10MHz 8087 co processor RAM 640KB with parity standard on system board ROM 64KB standard VO Expansion Slots Four full length 8 bit i O slots available tn standard configuration Disk Controllers Floppy disk On system board Supports two 3 5 double density 720KB drives Hard disk Standard XT type controller board Mass Storage Two 3 5 interra storage devices maximum Standard 3 5 Hall height floppy disk arive 720KB storage capacity Optional 3 5 720K8 floppy disk drive Optional 3 5 Half height hard disk drive 20MB storage capacity Speaker Internal non adgjustable Clock Calendar Real time clockcalendar with battery backup Keyboard Detachabie enhanced AT style 2 position 101 sculpted keys 58 key QWERTY contiguration 12 function keys Interfaces Parallel serial keyboard mouse and video ports standard Parallel Centronics compatible DB25 female Connector on systern board Serial RS 232C compatible DB25 male connector on system board Keyboard IBM compatibie 6 pin mim DIN
5. nce 4 3 39 Equity Series Computers EQUITY le Information Reference List Engineering Change Notices 4 13 89 Equity le ROM BIOS Update to Release 1 70 3 15 89 Equity b Power Supply Upgrade Kit 5 1 89 Equity b ROM BIOS Update to Release 1 72 6 26 89 Equity b ROM BIOS Upgrade to Release 1 74 Technical Information Bulletins EQSER 002 3 15 89 Equity Series Enhanced Keyboard Part Number Information Ld R 3 Product Support Bulletins 6 12 89 Using Expanded Memory with Equity and Apex 5 4 89 Using Math Coprocessors With Equity and Apex 6 9 89 Equity Series Computers ROM History 3 10 89 Equity le MiniScribe 8425F HDD Interleave 3 21 89 Equity le Common Questions and Answers 4 13 89 Equity le Compatibility List 4 19 89 Apex Apex Plus Equity Series Keyboards 6 12 89 External 5 25 FDDs for the Equity b 5 23 89 Equity b Video Mode Compatibility 6 12 89 Equity b RAM Board Compatibility List 8 11 89 Novell Netware Compatibility Test Results for Equity b Equity Series Computers 9 22 89 EQle 5 EQUITY le Related Documentation Y 16299100500 Equity le MS DOS 3 3 Manual Y 16299100200 Equity le GW BASIC Manual M TM EQle Equity le Technical Manual M PM EQle Equity le Technical Reference Manual M PL EQle Equity le Parts List Q50188015 Equity le User s Guide EQle 6 9 22 89 Equity Series Computers
6. on system board Mouse IBM compatible 6 pin DIN connector on system board Video MCGA compatible DB 15 connector on System board Environmental Requirements Temperature Operating range 41 to 95 5 to 35 C Storage range 4 to 140 20 to 60 C Humidity Operating range 20 10 80 Non condensing Storage range 10 to 90 Non condensing Equity Series Computers 4 3 89 EQUITY le Power supply Auto sensing lan cooled woridwide Input voltage 115 230 V AC 50 60H2 2 0A Output voltage 5V OC 76A bd 5V DC 025A 12V DC 1 64 12VDC 025A Outputpower 62 W 72 W peak Physical Characteristics CPU Keyboard Width 13 76in 193in Depth 15 94 in 77 in Height 45in 18in Weight 15 5 lbs 43lbs Single floppy drive configuration Sottware includes MS DOS 3 3 GW BASIC XTREE and Epson enhanced utility software Options Video displays 12 Analog Monochrome Display 13 Analog Color Display VGA Hard Disk Controller PC XT half card Switch Settings POWER light SPEED button There are no DIP switches or jumpers to set for proper operation of the Equity le The CPU SPEED switch selects between 8 MHz and 10 MHz When the computer is running at 8 MHz the power light is orange and at 10 MHz the light is green The CPU SPEED button is located on the front panel near the disk drive bay EQle 1 EQUITY le Connector Pin Assignments Parallel Port Connector
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