Professional RS-232 Communication Interface
The Maynuo M-131 RS-232C Adapter enables PC-based control and data logging for Maynuo electronic loads and programmable power supplies. This essential interface cable converts TTL voltage levels from the instrument's DB9 connector to standard RS-232 levels required for computer serial communication.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Input (Instrument Side) | TTL levels (+5V logic) |
| Output (PC Side) | RS-232 levels (±12V) |
| Interface | DB9 male to DB9 female |
| Isolation | Galvanic isolation included |
| Status LEDs | TX/RX activity indicators |
| Cable Length | 1.2 metres |
Wiring Quick-Start
Important: Never connect DB9 instrument port directly to PC RS-232 without the M-131 adapter. TTL voltage levels are incompatible with RS-232 and may cause damage.
The M-131 provides essential voltage level conversion between your Maynuo instrument's TTL signals and your computer's RS-232 serial port:
Compatible Instruments
Works with all Maynuo electronic loads and programmable power supplies featuring the DB9 TTL communication port, including:
- M97 Series Electronic Loads (M9711, M9712, M9713, M9714, M9715, M9716, M9717, M9718)
- M98 Series LED Electronic Loads (M9811, M9812, M9812B)
- M88 Series Programmable Power Supplies (M8811, M8812, M8813, M8831)
- High-power M983X series loads
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Software Integration
Use with Maynuo's free PC software for:
- Remote instrument control
- Automated test sequences
- Data logging and analysis
- Custom SCPI command programming
Note: Alternative M-132 (RS-485) and M-133 (USB) adapters are available for different communication requirements.