I. Basic Information

Model: MVME162P-242 (often written as MVME162P242 / 162P-242)

Brand: Motorola / Emerson / Abaco Systems

Series: MVME162P (P = Performance, Compact High-Performance VME SBC)

Form: 6U VME dual-height single-board computer (SBC)

Positioning: 25 MHz 040 (with hardware floating-point), 4MB, dual Ethernet, 4× serial ports, 2× IP, no SCSI, economical industrial controller

II. Core Hardware (Most Critical Parameters)

CPU: MC68040, 25 MHz

32-bit, 8KB cache, MMU, FPU (hardware floating point)

DRAM: 4MB (parity check), expandable to 16MB

SRAM: 128KB (battery backup, power-off retention)

Flash: 1MB (firmware / 162Bug)

RTC/NVRAM: 8K×8, battery-backed clock

III. Built-in I/O (Interface List)

✅ Dual 10Mbps Ethernet (DMA)

✅ 4× Serial Ports (EIA-232-D, time-sharing)

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

✅ 6× 32-bit Timers + Watchdog

❌ No SCSI interface

One sentence: Dual networks, four serial ports, two IPs, with floating point, no hard disk interface.

IV. Bus and Mechanical / Environmental

Bus: VMEbus A32/D64, master / slave, system controller

Size: 6U VME (233.4 × 160 mm)

Power supply: +5V, typical 3.0A

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

Weight: Approximately 0.8 kg

V. Positioning in the Same Series (Quick Differentiation)

MVME162P-242: P series (reduced), 2IP, 4MB, dual networks, with floating point, no SCSI

MVME162-853: Standard series, 4IP, 16MB, dual networks, no floating point, no SCSI

MVME162-863: Standard series, 4IP, 16MB, dual networks, with floating point, with SCSI

VI. Typical Application Scenarios

Industrial control, DCS, PLC (requires floating point operation, but with few IP quantities needed)

Redundant network system (dual network ports for redundancy / isolation)

VME system budget-sensitive, no SCSI, only 2 IPs

Real-time control, data acquisition, lightweight algorithm (floating point + dual network + few IPs)

VII. Compatibility and Replacement

Interchangeable with the same model: MVME162P-242 / 242LSE / 242E

Upward compatible: MVME162-223/530/743/853 (note differences in IP quantity and memory)