LMN-USB12V adapter (crypto reset tool)
USB-to-RS485 adapter with integrated 5 V to 12 V boost circuit
The DIINNO LMN-USB12V adapter integrates a 5 V to 12 V boost circuit so that a PC can communicate directly with the LMN (local metrological network) bus or the base meter (Basiszähler) – without an additional 12 V power supply.
With an FT232 and an RS485 chip, the adapter supports a baud rate of up to 921.6 kbit/s.
Together with the DIINNO Toolbox app, the adapter becomes a mobile field solution: connected to a smartphone via Type-C, it establishes the LMN cable connection to the meter – reading, testing and pairing directly on site.
As a crypto reset tool, the adapter and DIINNO Toolbox carry out the SML crypto reset using the 120-second procedure and also support the crypto reset according to SYM6 and SYM7 – directly at the meter, without additional tools.
Request a quotePlaced on the EU market by: DIINNO GmbH, Brunsbütteler Damm 93, 13581 Berlin, Germany
We sell exclusively to businesses (entrepreneurs within the meaning of Section 14 of the German Civil Code, BGB), legal entities under public law and special funds under public law. No sales to consumers.
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Versions compared
The LMN-USB12V is available as a single unit, as a set with the matching accessories for field use and – in preparation – as a galvanically isolated version with Bluetooth.
| Attribute | LMN-USB12V single unit | LMN-USB12V Set field-use set | LMN-USB12V-IB in preparation – galvanically isolated |
|---|---|---|---|
| Scope of delivery | Adapter with connection cable | Adapter + Type-C adapter + LMN-BS3 (bus splitter) + LMN-BKF030 (LMN bus cable) | Adapter with connection cable |
| Galvanic isolation | – | – | supply and signal fully isolated |
| Bluetooth | – | – | in addition to the USB connection |
| 5 V to 12 V boost | yes | yes | yes |
| Baud rate | up to 921.6 kbit/s | up to 921.6 kbit/s | up to 921.6 kbit/s |
| Availability | available | available | in preparation |
The LMN-USB12V-IB is in preparation – please contact us for availability and technical details.
Technical features
Features
- Integrated 5 V to 12 V boost circuit
- No additional 12 V power supply required
- Direct communication between PC and LMN bus or base meter
- FT232 and RS485 chip
- Baud rate up to 921.6 kbit/s
- RJ12 socket, pin assignment according to BZ-Lastenheft
- Robust ABS housing for −40 °C to +80 °C, CE certified
- Connection adapter for the DIINNO Toolbox app (mobile field solution on the smartphone)
Technical data
- Certificate
- CE
- PC connection
- USB Type-A (5 V)
- LMN connection
- RJ12 socket, pin assignment according to BZ-Lastenheft
- Baud rate
- up to 921.6 kbit/s
- Output voltage
- 12 V
- Housing colour
- black
- Material
- ABS
- Temperature
- −40 °C to +80 °C
- Dimensions
- 59 × 21 × 19 mm
- Cable length
- 70 cm
Documents
The datasheet for this product is currently available on request.
- Datasheet LMN-USB12V available on request on request
Software
The adapter works with the DIINNO Toolbox app: reading, pairing, the SML crypto reset (120-second procedure) and the crypto reset according to SYM6/SYM7 run directly at the meter via the app.
- DIINNO Toolbox app (Android) Download
Scan the QR code and install DIINNO Toolbox 
Tender text
Short text for use in bills of quantities.
USB-to-RS485 adapter for direct communication between a PC and the LMN bus or base meter. The adapter integrates a 5 V to 12 V boost circuit, so no additional 12 V power supply is required. Equipped with an FT232 and an RS485 chip, the adapter supports a baud rate of up to 921.6 kbit/s. PC connection via USB Type-A (5 V), LMN connection via RJ12 socket with pin assignment according to the base meter specification (BZ-Lastenheft). Robust black ABS housing for a temperature range of −40 °C to +80 °C, dimensions 59 × 21 × 19 mm, cable length 70 cm. CE certified. Make: DIINNO GmbH or equivalent.
