Introduction; Euro-500Tx Handy Technical Parameters; System Configuration; Block Chart Of Ecr Euro-500Tx - ELCOM Euro-500 Handy Series Service Manual

Euro-500TX Handy

1.1 Euro-500TX Handy technical parameters

Euro-500TX Handy is a portable ECR with following parameters:
• primary power supply
• internal power supply
• maximal power input
• microprocessor system
• memory power backup
• printer
• cashier and customer displays
• keyboard

1.2 System configuration

The Euro-500TX handy has been designed as a portable ECR. Its most important parameters are low
weight, small size and possibility to operate for a longer period of time without external power supply.
At the heart of the ECR lies the 16-bit microcontroller E-500TXN that features 11 I/O ports and two serial
transfer channels. The ECR programme is stored in 256 kB of EPROM memory. Following the EPROM
programme version, the ECR operates on 128 or 512 kB of RAM.
The system contains:
• power supply circuits
• microprocessor system
• real-time circuit
• reset controller
• power supply checking circuit
• keyboard interface
• display interface
• serial interfaces RS-232 for PC, scanner and electronic scales
• interface for external PC keyboard
• power input reduction circuits
• drawer opening circuit
• paper tape detection circuits
• cashier LCD backlight
• customer LCD backlight (optional for ECRs with segment customer LCD)
• fiscal memory with its support circuits (optional)

1.3 Block chart of ECR Euro-500TX

Real-time
circuit
RS-232 PC
interface
RS-232 scales
and scanner
interfaces
Power supply
checking
Paper tape
sensor
External PC
keyboard
Service manual

1 Introduction

external adapter 230 V, 50-60 Hz/24 V,2.08 A
2× NiMH accumulator 7.2 V, 1,500 mAh
or lead accumulator 6 V, 1,200 mAh
10 W
16-bit microcontroller, 256 kB EPROM, 128 or 512 kB RAM
NiCd accumulator 3.6 V, 60 mAh
thermal, CITIZEN 1320
1: alphanumerical cashier LCD 2×20 characters and seg-
mented customer LCD
2: 2× alphanumerical LCD 2×20 characters
30 single keys and one double key
D0 – D7
A0 – A18
MICROCONTROLLER
E-500TXN

Fig. 1.1: Block chart of ECR Euro-500TX

EPROM SRAM
256 kB 128 (512) kB
8-bit data bus
19-bit address bus
Display
Power input
Printer
control
circuit
Keyboard
Fiscal
memory
© Elcom, s. r. o.
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