I. Basic Information

Model: MVME162PA-244LSE

Brand: Motorola / Emerson / Abaco

Series: MVME162PA (6U VME SBC, 244 = 4IP + dual networks)

Form: 6U VME dual high single-board computer

Core Features: 25MHz 68LC040 (no FPU), 16MB, 4×IP, dual Ethernet, no SCSI, -40~+85°C wide temperature range, shock-resistant and vibration-resistant, equipped with original metal heat sink, standard VME master/slave.

II. Complete meanings of suffixes (most frequently asked by customers)

244: 4×IndustryPack, dual Ethernet, 16MB, no FPU

L: Reinforced (stressed welding, anti-vibration / shock resistance)

S: With original factory metal heat sink (active cooling, high temperature resistance)

E: Wide temperature range (‑40°C ~ +85°C)

Rule: L = Reinforced, S = Heat dissipation, E = Wide temperature range; 244 = 4IP + dual network + no FPU

III. Core hardware (consistent across the 244 series)

CPU: MC68LC040, 25 MHz (no FPU, 8KB cache + MMU)

DRAM: 16MB (parity check)

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

Flash: 1MB (162Bug firmware)

RTC/NVRAM: 8K×8, battery backup clock

IV. Built-in I/O (top configuration: 4IP, dual network, VME, no SCSI)

✅ Dual 10Mbps Ethernet (DMA, redundant / dual network)

✅ 2×Serial ports (EIA‑232‑D: console + user)

✅ 4×IndustryPack (IP) expansion slots (each IP independent DMA) - the biggest difference of 244

✅ Standard VMEbus A32/D64 (master / slave, system controller)

❌ No SCSI interface (244 series does not have SCSI)

✅ 6×32-bit timers + watchdog

V. Environment and electrical (LSE = wide temperature + reinforced + heat dissipation)

Operating temperature: –40°C ~ +85°C (industrial wide temperature ✅)

Reinforcement: ✅ Strengthened welding, anti-vibration (vehicle-mounted / ship-mounted / rail-mounted)

Heat dissipation: ✅ Original factory metal heat sink (passive cooling, more stable at high temperatures)

Power supply: +5V, typical 2.5A

Size / weight: 6U VME, approximately 1.1kg (with heat sink)

VI. Comparison of 244 family (including your model LSE)

244: 0~+70°C, non-reinforced, no heat dissipation → standard version

244L: 0~+70°C, reinforced, no heat dissipation → normal temperature reinforced

244LE: –40~+85°C, reinforced, no heat dissipation → wide temperature reinforced

244LSE: –40~+85°C, reinforced + heat dissipation → wide temperature reinforced heat dissipation (top configuration)