1. General Description

• 022A = 4×IP + Ethernet, no SCSI, industrial high‑rel “A” grade

• Difference from 022: “A” = industrial temperature range, enhanced component grading, stronger ESD/surge immunity, tighter power supply filtering

• Difference from 021A: Ethernet instead of SCSI; same 4×IP, same ruggedized “A” platform

• Difference from 023A: 023A adds SCSI; 022A is Ethernet‑only

• Position: rugged high‑I/O + network SBC for industrial/defense VME

2. Core Specifications

• Processor: Motorola MC68LC040 @ 25 MHz (8 KB cache, MMU, no FPU)

  Optional: MC68040 @ 25 MHz (with FPU)

• DRAM: 4 MB parity‑checked DRAM (expandable to 8 MB)

• Battery‑Backed SRAM: 512 KB

• Flash Memory: 1 MB Flash (162BUG firmware)

• NVRAM/RTC: 8 KB NVRAM + RTC (TOD), battery‑backed

• VMEbus: A32/D32/D64, master/slave, system controller capable

• Ethernet: 10 Mbps (AUI + 10BASE‑T) with 32‑bit DMA, no SCSI

3. Onboard Interfaces

• IndustryPack (IP): 4 × single‑height IP slots (or 2 × double‑height), each with DMA

  • Supports AI/AO/DI/DO, serial, CAN, Profibus, etc.

• Ethernet: 10 Mbps (AUI + 10BASE‑T) (no SCSI)

• Serial Ports:

  • 1 × Console: EIA‑232‑D (DCE)

  • 1 × Configurable: EIA‑232‑D / EIA‑530 (DCE/DTE)

• Timers: Six tick timers + watchdog timer

• Front Panel:

  • 8 LEDs: FAIL, STAT, RUN, SCON, LAN, FUSE, SCSI, VME

  • 2 pushbuttons: RESET, ABORT

4. Mechanical & Environmental (Key: “A” Grade)

• Form Factor: 6U VMEbus, single slot

• Operating Temperature: ‑20°C ~ +70°C (industrial extended range, “A” grade)

• Storage Temperature: ‑40°C ~ +85°C

• Humidity: 5%–95% non‑condensing

• Ruggedization (vs. 022 standard):

  • Enhanced ESD / electrical noise immunity

  • Industrial‑grade components (wider temp, lower drift)

  • Improved power filtering and transient suppression

  • Tighter QA screening for vibration/shock

5. Firmware & Software Support

• Boot Monitor: 162BUG (Motorola proprietary)

• Supported OS: VxWorks, LynxOS, OS‑9, pSOS+, VRTX, OpenBSD/mvme68k, NetBSD/mvme68k

• Functions: POST, memory/VME mapping, serial console, IP slot mapping, Ethernet initialization, watchdog control

6. MVME162 Series Quick Comparison (Relevant Models)

• 020: 4×IP, no Ethernet/SCSI (standard)

• 020A: 4×IP, no Ethernet/SCSI, industrial high‑rel

• 021: 4×IP + SCSI‑2, no Ethernet (standard)

• 021A: 4×IP + SCSI‑2, no Ethernet, industrial high‑rel

• 022: 4×IP + Ethernet, no SCSI (standard, 0–55°C)

• 022A: 4×IP + Ethernet, no SCSI, industrial high‑rel (‑20°C~+70°C) (this model)

• 023: 4×IP + SCSI‑2 + Ethernet (standard)

• 023A: 4×IP + SCSI‑2 + Ethernet, industrial high‑rel

7. Typical Applications

• Rugged industrial VME requiring 4×IP I/O + 10 Mbps Ethernet (no local disk)

• Factory automation/DCS in harsh temperature/vibration environments

• Military/aerospace embedded control with distributed I/O + TCP/IP

• Upgrades from 022 (standard) to ‑20°C ~ +70°C operation

8. Maintenance Notes

• Replace backup battery every 3–5 years to preserve SRAM/RTC/NVRAM

• Configure VME master/slave, IP addressing, and Ethernet MAC/PHY via jumpers

• Verify IP module IDs and Ethernet cable/termination before power‑on