Epson Apex Product Information Guide
Contents
1. APEX Computer Specifications CPU 8088 2 microprocessor 4 77MHz or 8MHz switch selectable clock speeds 20 bit address bus and 8 bit data bus Math Cte The CPU SPEED switch selects between 4 77 MHz and 8 or 8 2 MHz When the computer is running at 4 77 MHz the power RAM 512KB standard expandable to light is orange and et 8 MHz the light is green 640KB on motherboard 16KB socket i System Configuration Switches Controller Supports two internal 5 25 double density 360KB drives Switch Options en full length IBM Keyboard type Standar d ff slots one occupied by coior Coprocessor Not instaved T graphics CGA adapter 8067 Speaker Internal programmable 300 milliwatts cal Genel SG N Keyboard Detachable 2 position 84 sculpted Memorysze 90ND Ph 10 function IBM AT style with ee a Cn Sn Gn Gene a aa ale tt tt Power Supply 80 watts worldwide 115 230VAC fan cooled switching type 5VDC Monitor and 12VDC 12VDC adapter type Mass Storage Two internal half height devices maximum Standard Two 5 1 4 half height floppy disk a NE Lapac Number of interface Centronics compatible parallel printer floppy disk port DB25 female connector drives EE TEE Keyboard Width 14 4 in 18 2 in ht tein OIN wean 25 5105 2 61652. Requirements 115VAC 60Hz 230VAC 50Hz Factory setting APEX PIN ND SIGNAL NAME DIRECTION DESCRIPTION 1 STROBE Strobe PIN No SIGNAL NAME DIRECTION DESCRIPTION 2 DATA 0 Data Bit 0 SSS SSS eS 3 DATA 1 Data Bit 1 1 KBD CLK 1 0 Keyboard Clock 4 DATA 2 Data Bit 2 2 MD DATA 1 0 Keyboard Data 5 DATA 3 0 Data Bit 3 3 KBD RESET 0 Keyboard Reset 6 DATA 4 Data Bit 4 4 GND Ground 7 DATA 5 Data Bit 5 5 5V Power 8 DATA 6 Data Bit 6 9 DATA 7 Data Bit 7 10 ACK Acknowledge 11 BUSY Busy 2 PE I Paper Empty 13 SLCT I Printer Selected 14 AUTO FD Auto Paper Feed 15 ERROR I Error 16 INIT Initialize 17 SELECTIN Select In 18 25 GND Ground Jumper Locations Jumper Settings for FDC and RAM Configuration FRONT PANEL CONNECTORS Shi 8 JUMPER ON 806 AOM aise 120K bm Ji MOTHER BOARD 611 5278 LOR and GS JUMPERS SOG ROM sisp 5120 dita Port Addresses SOLG IBM s Synchronous Data Link Control APEX FDD Adapter HDD Adapter Timer IRQ1 Keyboard IRQ2 EGA PC Net 3278 79 IRQ3 Serial 2 1804 Serial 1 IROS Hard Disk IRQS Floppy Disk Printer
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