Intermec EasyCoder PX4i Service Manual

144 EasyCoder PX4i and PX6i Service Manual
Chapter 15 — CPU Board
15.1 Description
The CPU board is a four-layer board with most of its circuits surface-
mounted. Inside the laminate are a combined VCC layer (5V/3.3V/2.5V)
and a GND layer. The front and back sides are signal routing layers.
The hardware contains of the following main functions:
• Processor core
• Thermal printhead driver
• Stepper motor control logic
• Sensor drivers
• Communication, such as UART, USB, etc.
• Flash memory SIMM for the fi rmware and non-volatile storage
• SDRAM SIMM for working memory
• A/D converter for sensor adjustment, etc.
• Compact Flash memory card expansion
• Expansion bus
• PCI bus (custom)
1-971630-26 CPU board; Block Diagram
(numbers refer to schematics in Chapter 15.7)
)
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INTERFACE
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Intermec EasyCoder PX4i Specifications

General

Print technology	Direct thermal
Maximum resolution	300 x 300 DPI
Display	LCD
Product color	Silver
Keyboard layout	Numeric
Standard interfaces	RS-232, USB 2.0
Internal memory	16 MB
Media thickness	2.4/10 mm
Maximum label width	120 mm
Maximum label length	2.7 m
Maximum roll diameter	213 mm
Supported network protocols	TCP/IP, LPR/LPD, FTP, BOOTP, DHCP, HTTP, SNMPv3, SMTP, SNMP-MIB II
Power requirements	90 - 265 VAC, 45 - 65Hz
Power consumption (standby)	20 W
Power consumption (printing)	125 W
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	40 - 104 °F
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Depth	482 mm
Width	238 mm
Height	275 mm
Weight	12850 g