Epson NX Product Information Guide
Contents
1. Data set read Request to send Transmit data 6 Clear to send 4 Data terminal read 5 Not used 9 Ring indicator _ Keyboard Connector CN10 and Mouse Connector CN9 pin 6 pin 5 pin 4 pin 3 pin 2 pin 1 Caution Although the keyboard and mouse connectors are physically identical they cannot be used interchangeably Keyboard and Mouse Connector Pin Assignments 3 Ground 16 Reserved 6 30 93 EPSON NX VGA Port Connector CN2 pin 5 pin 10 pin 15 VGA Port Connector Pin Assignments VGA Feature Connector CN17 pin 1 pin 25 HHA pin2 pin 26 VGA Feature Connector Pin Assignments Signal BLANK i BLANK 26 Not connected PCLK 18 JENSYNC Active low logic DMA Assignments Spare 16 bit DMAS spare 16 bit EPSON NX 5 EPSON NX Hardware Interrupts E Serial port 2 Seralpon2 S O Serial port 1 un IRQ14 Harddiskdrive controler __ _ Rais Available ction DOd J J di dd System I O Address Map He DMA controller 1 8237A 5 022 lt 024 040 043 060 061 064 070 lt 071 CMOS 080 08F OAO OAI OCO ODF master Epson reserved function Real time clock NMI non maskable interrupt mask DMA page register 74LS612 Clear math coprocessor bus OF1 Reset math coprocessor OF8 OFF 1F0 1F8 Hard disk drive 200 207 Game UO 22. through SETUP 6 pin mini DIN connector PS 2 compatible mouse interface built into main system board 6 pin mini DIN connector Four standard 16 bit or 8 bit I O expansion slots three available ISA compatible 8 MHz bus speed Internal operation controllable through SETUP and volume selectable by software IBM compatible VGA pass through interface built into main system board 26 pin connector Intel EtherExpress 16C 16 bit ISA compatible Ethernet adapter supports BNC coax thin Ethernet AUI DB 15S thick Ethernet and RJ 45 10BaseT Ethernet Link and Activity status LEDs software configurable for I O address IRQ connector type and I O or memory mapped buffering diagnostic utility included Three drives maximum two horizontal mounts and one vertical mount configurable using the following Up to two externally accessible half height horizontal mounts each horizontal bay can accommodate one 54 inch form factor hard disk diskette tape CD ROM or other drive or one 34 inch form factor hard disk diskette tape CD ROM or other drive with 54 inch mounting frames attached One internal third or half height vertical mount vertical bay can accommodate one 34 inch form factor hard disk or other drive 3 5 inch 1 44MB high density 5 25 inch 1 2MB highdensity DOS only 315 inch or 54 inch form factor hard disk drive s up to half height size the first mounted vertically second mounted h
3. computer Check this table and your hard disk manual to find the correct type number s for the hard disk drive s installed in the computer You need to enter the type number s when you set the hard disk drive configuration in the SETUP program Hard Disk Drive Types Fl rd no DS zone BEI MB i fas f4 fs f fr fu 2 615 4 300 615 17 ST 225 ST 4026 WD 93004 pa fes fe fam Jes pr fo s t a fo Je se f fr Je Cone ew fe fe fa Jr f PI e e a ST 125A ST 325A je Je fes fu r Jo ff ST 408 7040 8051A s a K 133FA 134FA ST ASTAT gi B SHE g TF S I I e 70 90 115 fraa o Too fo oe fom ar fa rommene ar foer 5 rw soe Tox fc0038216 10550 fe fs fne fie as f Toocs ere 8 512 1023 17 amp 1325 3085 LANG4 XT1085 NDR1085 ute tu fue fe fo E fe 5 fer fha fr fe VS fis as ar oo Actual size when formatted may be slightly different than the size listed on the drive label Hard disk drive supported in translate mode F Epson drives EPSON NX 7 EPSON NX If the computer has an Epson 170MB or 240MB hard disk drive select the appropriate type number from the table below Epson Hard Disk Drive Types Type number Epson hard disk drive 28 170MB 34 240MB Installation Support Tips Power The computer has an input voltage selection switch on the back panel to select between 115 VAC for USA and Canadian use and 230 V
4. monitor is installed Enables a mouse or other polnting device connected to an opt amp n card Disables a mouse or other pointing device connected to an option card Disables the password Enables the password J14 J15 Reserved Factory setting To use a mouse connected to a port on an option card set J9 to B and J12 to A If you connect another type of pointing device such as a joy stick to the option card port set both jumpers to A 6 30 93 Processor Chips Support is provided for a future OverDrive processor SIMM Installation There are two SIMM sockets on the main system board To increase the amount of memory in the computer up to 128MB you can install 36 bit 72 pin gold leaded fast page mode SIMMs that operate at an access speed of 70 ns or faster with a capacity of IMB 4MB 16MB or 64MB The following table shows the possible SIMM configurations do not install memory in any other configuration Make sure that both SIMMs operate at the same speed The computer comes with 20MB of memory 4MB soldered on the main system board and one 16MB SIMM SIMM Configurations SIMM 1 24MB 36MB g 5 66MB 89MB _ 69MB 72MB _ 72MB 84MB 84MB 128MB RIS Ble DOJO lo S E E wv v o When SIMM is available This memory configuration diiles the 4MB of soldered memory 6 30 93 EPSON NX Hard Disk Drive Types The table below lists types of hard disk drives you can use in the
5. program that can run only on a diskette or that requires a key disk try to load the program at high speed If you can t load the program at high speed set the processor speed to automatic EPSON NX 8 Q If you are using a copy protected program that does not require a key disk but requires a special procedure to install it on a hard disk set the speed to low while you install the program Then set the speed to high while you load and run the program If this does not work try installing and loading the program at low speed and then change to high speed to run it Q You can change the processor speed using the SETUP program the ESPEED program or keyboard commands See the User s Guide and Setup Guide for more information Password Make sure that you do not forget the password you set If you do you must disable it by setting jumper J13 on the main system board to position A Information Reference List Engineering Change Notices None Technical Information Bulletins None Product Support Bulletins None Related Documentation TM EPSNNX EPSON NX Service Manual PL EPSNNX EPSON NX Parts Price List SPKEPSNNX EPSON NX Self Paced Kit 400227900 EPSON NX Setup Guide 400227800 EPSON NX User s Guide 400193100 EPSON VGA Utilities Guide for Wingine based products 6 30 93
6. 78 27A Parallel printer port 3 2B0 2DF Alternate enhanced graphics adapter 2E1 GPIB adapter 0 2E2 and 2E3 Data acquisition adapter 0 2F8 2FF 300 31F 348 357 360 363 PC network low address Resewed 384 387 PC network high address Resewed 3C0 3CF Enhanced graphics adapter 3F8 3FF Serial port 1 6E2 and 6E3 Data_acquisttiin adapter 1 790 793 Cluster adapter 1 378 37A AE2 and AE3 Data acquisition adapter 2 B90 B93 Cluster adapter 2 EE2 EE3 Data acquisition adapter 3 1390 1393 Cluster adapter 3 EPSON NX 6 Hex address Assigned device 22E1 GPIB adapter 1 reserved function F060 F085 F089 FOGD Recommended addresses for installing devices rit Ole Jumper Settings See the illustration on page 3 for the location of the jumpers on the main system board CPU Speed Jumper Settings CPU speed fa fs pxaes fa fa 18 f E Factory settings CPU Type Jumper Settings CPU tye te Js ODP486DX66 a da JB JB This table shows the factory settings for jumpers J5 J8 You need to change these settings only if you install a future OverDrive processor Other Jumper Settings Enables the built in mouse connector Disables the built in mouse connector Enables the built in VGA display adapter Disables the built in VGA display adapter A color monitor is Installed monochrome
7. AC for use in other countries Mouse and Keyboard When connecting the mouse and keyboard to the computer be careful to plug them into the proper ports Although the ports are physically identical they are not interchangeable and you may damage the main system board if you plug the connectors into the wrong ports Installing Diskette Drives Make sure that the drive type has been correctly selected in the SETUP program Installing Hard Disk Drives for DOS Use I It is recommended that a 16 bit AT type hard disk controller be used if you are installing a drive that cannot use the embedded IDE interface If you install a non IDE hard disk drive and controller card you need to use the SETUP program to disable the built in IDE hard disk drive interface D See the hard disk drive type tables on pages 7 and 8 and use the SETUP program to enter the correct type number s for the hard disk drive s installed in the computer Also be sure to use the SETUP program to set the hard disk drive configuration if you install or remove a hard disk drive You can select a type number that matches the parameters for the drive or a type number with parameters having lesser values as long as they do not exceed the maximum capacity in MB of the drive If there is no match for the drive you can press Enter and then F2 at the Hard disk 1 or 2 option and enter the drive 5 exact parameters Software Problems D If you are using a copy protected
8. EPSON NX power SPEED light hard disk diskette K power access light drive button bay for hard disk diskette tape CD ROM or other drive 115 230 VAC switch option card slots Computer Specifications CPU and Memory 32 bit CPU System speed Memory 4DX2 66 Intel 1486DX2 66 MHz microprocessor supports future Intel OverDrive processors High low and automatic speeds available high speed is CPU dependent 66 MHz low speed is simulated 8 MHz automatic speed switches from high to low only for diskette drive access speed selection through SETUP keyboard command or ESPEED program 0 wait state memory access at high speed 20MB standard 4MB DRAM soldered on main system board and one 16MB SIMM expandable using 1MB 4MB 16MB or 64MB SIMMs to 128MB maximum on main system board SIMMs must be 70 ns 36 bit 72 pin gold leaded fast page mode type ROM Video RAM Shadow RAM Cache VirtualCache Math coprocessor Clock calendar Controllers Video Diskette Hard disk Interfaces Monitor Parallel Serial 6 30 93 128KB ROM containing system BIOS and video BIOS 64KB ROM containing SETUP code 2MB video RAM on main system board Automatic shadowing of system and VGA BIOS ROM into RAM shadow RAM address control selectable through SETUP 8KB of internal cache built into the microprocessor cache testing and address control selectable through SET
9. UP Epson proprietary VirtualCache feature automatically creates a virtual cache buffer the size of maximum system memory Built into the microprocessor Real time clock calendar and CMOS RAM on main system board separate battery backup Chips and Technologies Wingine P64200 VGA controller on main system board provides resolutions of up to 1024 x 768 x 64K colors or 1120 x 832 x 64K colors depending on the available drivers Controller on main system board supports up to two diskette drives or one diskette drive and one tape drive DOS only Interface on main system board supports up to two IDE hard disk drives with built in controllers VGA interface built into main system board for analog or multifrequency VGA monitor 15 pin D shell connector One standard 8 bit parallel bidirectional interface built into main system board port assignment and I O address selectable through SETUP 25 pin D shell connector Two RS 232C programmable asynchronous interfaces built into main system board port assignment and I O addresses selectable through SETUP 9 pin D shell connectors EPSON NX 1 EPSON NX Keyboard Mouse Option slots Speaker Feature connector LAN adapter Mass Storage Horizontal mounts Vertical mount Diskette drives Hard disk drives EPSON NX 2 PS 2 compatible keyboard interface built into main system board keyboard speed delay and num lock settings selectable
10. main system board 9 I gt E E L N R N i Ss power switch diskette drive speaker horizontal drive bays 6 30 93 EPSON NX 3 EPSON NX Main System Board Diagram serial 2 Mouse parallel serial 1 keyboard O O bd we ET PEE GE essensen SS Ji VGA video E nangan Om EEE EEE a EE 22 L EE regs sinn Tal z I i uiz n o 8842AH I fi UTS Q g R option board ma riser card alternate FH us nnector VGA feature Uss SB Olle uaz connecto connector F64200 uss 8 ST Wingine U142 Uia Ly 9 U7 Use U27 HT 201136602 oO ee rir U101 elle U v 38 88 VMIC om 8 1881 FDD video DRAM I i 33 JS ue uus connector 28 128 3 8 Gil 298 uns ul gel Ies gjunsj 32 R SISET 18 SG ol up uss CN L O 0090000000000000 ue connector n i 0000000000000000 g D i une pel SIMM2 SIMM1 base RAM EPSON NX 4 6 30 93 Connector Pin Assignments Parallel Port Connector CN5 pin 13 pin 1 pin 25 pin 14 Parallel Port Connector Pin Assignments 11 Bus al ground 2 PE 21 Signalground Signal ground 14 Auton Taa Signaiground 4 15 Eror 24 Signalground 5 16 fint 25 Signal ground Data6 117 Seer Data7 16 Signaiground Active low logic Serial Port Connectors CN4 and CNS pin 1 a pind ew pin 6 ping Serial Port Connector Pin Assignments Pin Signai Cd 1 Data carrier detect 6
11. orizontally the vertical bay can accommodate only 3 inch form factor drives the horizontal bays can accommodate 34 inch or 54 inch form factor drives Other devices Half height tape drive CD ROM drive or other storage device 54 inch form factor or 34 inch form factor with 54 inch mounting frames attached Keyboard Detachable two position height 101 sculpted keys numeric cursor control keypad four key cursor control keypad 12 function keys Power Supply Type 145 Watt fan cooled Input ranges 90 to 132 VAC and 180 to 264 VAC switch selectable voltage Maximum 5 VDC at 18 Amps 12 VDC at 4 0 outputs Amps 5 VDC at 0 3 Amps 12 VDC at 0 3 Amps Frequency 47 to 63 Hz Cables Two to main system board four to mass storage devices Option Slot Power Limits Maximumcurrent 5 volts 12 volts 5 Volts and 12 Volts ps 16Amps 3Amps 03Amps For each slot For all four slots Environmental Requirements Condition bone range Non operating Storage range range Temperature 41 to95 F 4 5910 35 Humidity 20 to 60 ne 100 to 3 000 m 100 to 3 600 m 20 C Acoustical A noise 300 to 39 600 ft 100 to 12 000 m 134 F Physical Characteristics Width 14 8 inches 370 mm Depth 16 5 inches 412 mm Height 4 8 inches 120 mm Weight 16 7 Ib 7 6 kg without keyboard 6 30 93 EPSON NX Major Subassemblies J15 J9 power supply option board riser card
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