Epson PX-8 Technical Manual

REV.-A
1.4 Interface
As shown in Table 1-3, the unit has eleven connectors: among them, CN3, CN4 and CN5 have a
slide-lock mechanism.
Table 1-5 Interface Connectors
Name
Number
Function
of pins
CN1
3
AC adapter
connection interface
CN2
2 Main
battery connection interface
CN3
20
Incorporated microcassette interface
CN4
22 Keyboard interface
CN5
16 LCD interface
CN6
8
High speed serial interface
CN7
8
RS-232C interface
CN8
50 Expansion interface
CN9
3
Bar code reader interface
CN10
3 Analog input interface
CN11
2 External speaker interface
Note: CN5 is integrated on the back of MAPLE board.
Table 1-6 CN 1 (AC Adaptor) Pin Assignments
Pin No.
Signal name
Definition
1 VCH Charging voltage
2
-
Undefined
3
GND Ground
Table 1-7 CN2 (Battery Connection) Pin Assignments
Pin No. Signal Name Definition
1
VB
Main battery voltage
2
GND Ground
1-8

Epson PX-8 Specifications

General

Brand	Epson
Model	PX-8
Category	Laptop
Language	English