Key facts
- Brand
- NTT
- Model
- MN3
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- JA
- Last added
- 2011-12-10
Start here

NTT MN3 ADSL Modem User Manual
The manual begins with safety precautions, warning symbols, and usage restrictions, emphasizing that the device is intended for domestic use in Japan only and must be handled only by qualified personnel. It also outlines proper disposal, data erasure, and environmental considerations.
Subsequent sections cover the modem’s components, installation steps, wiring, computer network settings, IP address verification, and functional checks. Troubleshooting tips and service information are provided in the appendix. This manual is written in Japanese.
All NTT MN3 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Can the NTT MN3 ADSL modem be used outside Japan?
No, the equipment is designed for use in Japan only and cannot be used in any other country.
What should I do if the modem gets wet?
Immediately unplug the power adapter from the outlet and contact NTT’s service center.
Can the modem be used outside Japan?
No, the equipment is designed for use in Japan only and cannot be used in any other country.
What should I do if the modem gets wet?
Immediately unplug the power adapter from the outlet and contact NTT service; continued use may cause fire or electric shock.
