Motorola MVME148 VMEbus Single Board Computer

Technical Specifications

Model:MVME148

Brand:Motorola

Part No:MVME148

Product type:VMEbus Single Board Computer

CPU:MC68040

Clock:33MHz

Memory:8MB DRAM,4MB Flash memory,4K×8 CMOS RAM with battery backup

Bus:VMEbus A32/D32,A24/D16,A16

Form Factor:6U Eurocard

Power supply:+5V DC

Power consumption:19W

Dimension:233mm160mm20mm

Weight:0.90kg

Interface:4×RS232 serial port,Centronics parallel port,SCSI interface,10M Ethernet,VME backplane connector,watchdog timer,RTC clock

Operating temperature:0℃ ~ +70℃

Storage temperature:-40℃ ~ +85℃

Relative humidity:5~90% non-condensing

Certification:CE

System compatibility

MVME148 belongs to Motorola MVME148 VME series single board computer.It can work with standard VME backplane and matched VME I/O modules,widely used in old industrial control,test measurement and semiconductor equipment.It is spare part for legacy equipment overhaul.

Function

MVME148 is a 6U VME single board computer based on MC68040 integrated processor with built-in FPU and MMU.It supports embedded real-time operating system such as VxWorks,performs control logic operation and field data acquisition.It communicates with peripheral modules via VME bus,serial ports,SCSI and onboard Ethernet,onboard watchdog timer and RTC improve system stability.

Installation

Insert MVME148 into standard 6U VME chassis slot,lock the front panel.Fix the board,connect serial cable,SCSI cable,Ethernet cable and VME backplane.Take ESD protection before power-on.

Interface

‑VME backplane connector

‑Quad RS232 serial port

‑Centronics parallel port

‑SCSI interface

‑10M Ethernet port

‑Watchdog timer

‑RTC battery backup circuit

‑+5V power terminal

Feature

MVME148 classic industrial SBC.Typical faults:gold finger oxidation,RAM chip failure,serial transceiver damage,electrolytic capacitor aging,battery leakage,Ethernet controller failure.Clean gold finger and test memory before replacement.

Diagnostic

Fault phenomenon:no power on,boot failure,VME bus communication error,serial port no data output,SCSI access failure,Ethernet link loss.Check VME backplane power supply,clean gold finger,test RAM and communication circuit.

Product Brief

MVME148 is Motorola 6U VME single board computer with MC68040 33MHz CPU,8MB DRAM and 4MB Flash,onboard Ethernet and SCSI.It is successor model of MVME147 series.Mainly used for maintenance and replacement of old VME industrial control equipment.ESD protection must be followed during handling.