MVME162PA-242 | Basic Information (Motorola / Emerson / Abaco)

I. Basic Details

Model: MVME162PA-242

Brand: Motorola / Emerson / Abaco Systems

Series: MVME162PA (6U VME Single Board Computer, 242 Entry-Level)

Form: 6U VME Dual High SBC

Positioning: 25 MHz 68040 (with FPU), 8MB, 2×IP, single Ethernet, no SCSI, standard temperature (0~70°C), basic standard version

II. Core Hardware (242 standard configuration: 25 MHz with FPU, 8MB)

CPU: MC68040, 25 MHz (with FPU hardware floating point)

DRAM: 8MB (parity check)

SRAM: 512KB (battery backup, power-off retention)

Flash: 1MB (162Bug firmware)

RTC/NVRAM: 8K×8, battery backup clock

III. Built-in I/O (242 standard configuration: 2 IP + single network + dual serial ports, no SCSI)

✅ Single 10Mbps Ethernet (DMA)

✅ 2× Serial ports (EIA-232-D)

✅ 2× IndustryPack (IP) expansion slots (independent DMA)

❌ No SCSI interface (242 series does not have SCSI; select 344 series for SCSI)

✅ 6× 32-bit timers + watchdog

IV. Environmental and suffix explanations (242 = standard temperature, no reinforcement; suffix L/E/SE are wide temperature / reinforced)

Power supply: +5V, typical 2.0A

Operating temperature: 0°C ~ +70°C (commercial standard temperature)

Reinforcement: None (standard version)

Wide temperature: None (select 242E/242SE for wide temperature)

Size / weight: 6U VME, approximately 0.85 kg

V. 242 Family Suffix Quick Reference (easy to distinguish at a glance)

242: 0~+70°C, no reinforcement, no SCSI → Basic standard version (your model)

242L: 0~+70°C, reinforced, no SCSI → Standard temperature reinforced version

242E: -40~+85°C, no reinforcement, no SCSI → Wide temperature version

242SE: -40~+85°C, reinforced, no SCSI → Wide temperature reinforced top configuration

Rule of thumb: 242 series all have no SCSI; E = wide temperature, S = reinforced, L = reinforced (old standard)

VI. Key Differences between 242 and 344 (frequently asked by customers)

242 series: 25 MHz, 8MB, 2IP, single network, no SCSI, cheap → Entry / low-cost

344 series: 33 MHz, 16MB, 4IP, dual network, with SCSI, expensive → High configuration / high performance

VII. Typical Applications of 242

Indoor industrial control, data center, general automation equipment (0~70°C)

Cost-sensitive, no SCSI, no 4IP, no dual network redundancy

Basic motion control, data acquisition, general embedded systems

VIII. Compatibility and Replacement

Same series interchangeable: 242 / 242L / 242E / 242SE

Upward compatibility: MVME162P-252 / 344 series (note differences in SCSI / network ports)