Product Description - Epson PC AX Technical Manual

PRODUCT DESCRIPTION
WX Clock
REV.A
The clock input to the numerical processor extension (NPX) may be changed
according to the NPX version. The standard clock input is
8
MHz
(AT
uses 4
MHz and the new AT uses 5.33 MHz). Other clock-inputs, 20,
16,
or
12
MHz
(divided by three in the NPX) may be selected by set t ing jumper connectors on
the system board.
Mass Memory
EQU11Y 111+ / EPSON PC AX supports 4 types of built-in mass memory.
Hass Memory Slots
EQUITY 111+ / EPSON PC AX has 5 half-height slots for FDD's and IIDD's. There
are several ways to install the drives in these slots: (1) 4 half-height
drives, (2) 3 half-height drives and a full-height drive,
(3)
a half-height
drive and 2 full-height drives. A maximum of four drives can be installed.
Power Supply
EQUITY 11I+ / EPSON PC AX has an IBM AT compatible power unit. Hs
specification is world wide, using 115 V /220 V, switch selected, UL/CSA and
TUV standard, and FCC/FTZ standard. The number of power cables is 4.
Multi-function Card
The multi-function carc in the EPSON proprietary slot provides the serial
communication port, parallel printer port and floppy disk controller.
Hard Disk Controller
The hard disk controller contained in the prorietary slot will control two
hard disks.
Packaging
All switches and controls are easily accessible. Switches control the
processor execution speed, and the type of the display, color or monochrome.
1t is easy to connect the keyboard, control the volume, push the reset button,
turn the power on or off, and lock or unlock the main unit. When the unit i8
locked, the system does not accept key input and ignores the reset button.
Exterior
The unit is designed in line with the EQU1TY / EPSON PC series, which visually
distinguishes it from the numerous compatibles.
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