CNC CRT connector types reference — FANUC vs Mitsubishi vs Mazak vs Siemens

CNC CRT connector types reference — FANUC vs Mitsubishi vs Mazak vs Siemens

Sharing because this confused me at first — different CNC brands use completely different CRT connectors:

• FANUC: Honda MR-20M (20-pin), DC24V
• Mitsubishi: 20-pin or 26-pin, DC24V
• Mazak: 26-pin, DC24V
• Siemens SINUMERIK: DB-25 (25-pin D-Sub), AC110V — IMPORTANT: AC, not DC!
• Okuma: 14-pin or 20-pin, DC24V
• Haas early models: 9-pin D-Sub, DC12V

I learned the Siemens AC110V difference the hard way. If you’re buying a replacement LCD for your old CNC, triple-check: (1) connector type, (2) power supply voltage, (3) screen size.

Anyone else have connector horror stories? What machines are you running?

If you need a reference, I found this compatibility matrix helpful — covers 95+ models:

CNC CRT型号→LCD替代Compatibility Matrix | 6大品牌全Model Cross-Reference