MITSUBISHI USB-SC09 | USB to RS-422 Programming Converter Cable (MD8 + DB25) — 3M
The Mitsubishi USB-SC09 is a USB-to-RS422 converter programming cable for Mitsubishi FX and A Series PLCs. It features two PLC-side connectors: a Mini-DIN 8-Pin (MD8) for FX series and a DB25 Male for A/F2 series PLCs. Both connectors share the same cable — only one may be connected at a time.
2️⃣ Key Features
- USB Type-A on PC side — built-in USB-to-RS422 converter; no native serial port needed
- Dual PLC connectors: MD8 / Mini-DIN 8-Pin for Mitsubishi FX series + DB25 Male for A/F2 series
- Only one PLC connector can be used at a time — MD8 and DB25 cannot be connected simultaneously
- Auto-adaptive baud rate: 300 bps to 1 Mbps
- Dual-colour TX/RX LED indicator — data status at a glance
- USB bus powered — no external power required
- Communication distance up to 2 km at 9,600 bps
3️⃣ Technical Specifications
| Cable Model |
USB-SC09 |
| Cable Length |
~3 Metres (3M) |
| Interface — PC Side |
USB Type-A (Male) |
| Interface — PLC Side 1 |
MD8 / Mini-DIN 8-Pin (Male) — for FX Series |
| Interface — PLC Side 2 |
DB25 Male — for A / F2 Series |
| Conversion |
USB to RS-422 |
| Baud Rate |
300 bps ~ 1 Mbps (auto-adaptive) |
| LED Indicator |
Dual-colour TX/RX |
| Power Supply |
USB bus-powered |
| OS Support |
Windows XP / 7 / 8 / 10 (32 & 64-bit) |
| Condition |
OEM Compatible — New (no retail box) |
4️⃣ Compatible Devices / Models
- Mitsubishi FX Series (MD8 end): FX0, FX0N, FX0S, FX1S, FX1N, FX2N, FX3U — all with MD8F round socket
- Mitsubishi A Series / F2 Series (DB25 end): A00, A1S, F2 and similar
⚠️ Always verify the exact port type and model number on your device before ordering.
5️⃣ Typical Use Cases
- USB programming for both Mitsubishi FX and A/F2 Series PLCs from a single cable
- Use with FXGP/WIN, GPP V4.0, GX Developer V7.0+ software
6️⃣ Package Contents
- 1× Mitsubishi USB-SC09 Programming Cable, USB-A to MD8+DB25, 3M (OEM Compatible — New)
7️⃣ Warranty
- 90-day replacement warranty
- Covers manufacturing defects; physical damage and improper installation not included
8️⃣ Additional Notes
- OEM compatible — not a Mitsubishi-branded retail unit.
- MD8 and DB25 connectors cannot be used simultaneously — use only one at a time.
- Driver installation required for USB virtual COM port.