ENQT OKK
Our secure and standard-compliant ENQT OKK reads eHZ meters via the LMN interface (EN 62056-21) – galvanically isolated and extremely compatible thanks to extensive testing with many meter types. Its large opening angle compensates for positional deviations and makes installation quick and easy.
The ENQT OKK (optical communication head) enables optical data communication between modern electricity meters (eHZ) and reading or communication devices via the LMN interface in accordance with EN 62056-21. It ensures reliable, galvanically isolated data transmission and is therefore an essential element for secure and standard-compliant access to meter data in modern measurement systems. The ENQT OKK is characterised by a particularly high level of compatibility, which has been ensured by extensive testing with numerous meter models.
Thanks to its large optical opening angle, the communication head can be positioned flexibly and exhibits a high tolerance to positional deviations – which facilitates installation and minimises communication problems. The VDE-tested connection cable offers maximum electrical safety (6 kV), while the RJ12 plug with extended clip enables easy handling and a secure connection even in confined spaces. The ENQT OKK is available with different cable lengths, so that a suitable, pre-assembled version is available for every installation situation – for simple, quick and uncomplicated installation.
Application scenario
Quickly retrofit eHZ for SMGW communication:
Many existing systems use plug-in meters (eHZ) that do not have their own LMN socket. If these meters are to communicate with a smart meter gateway (SMGW), an optical communication head (OKK) is essential.
Connecting electricity meters reliably to LMN
Error-tolerant positioning
Quick and easy installation
High compatibility
Functions
- Optical communication head for connecting FNN base meters using plug-in technology (eHZ) to the smart meter gateway.
- Compatible with a wide range of common meter models from leading manufacturers.
- Fault-tolerant positioning for stable operation.
- Quick and easy installation
- Available with 50 cm, 100 cm and 150 cm connection cables
- Colour coding and labelling prevents installation errors
Technical Details
| Weight | 0,014 kg |
|---|---|
| Dimensions | 4,7 × 1,2 × 1,3 cm |
| Compatible Meter Types | FNN Basiszähler in Stecktechnik (eHZ) |
| Interface | LMN (RS485) |
| Max. Power Consumption | 21 mA |
| Transmission Rate | 921,6 kBit/s |
| Transmission Type | half duplex |
| Wavelength | 850 nm |
| Length of Cable | |
| Isolation Rating | > 6.000 V |
| Conformity | RoHS, WEEE, CE |
| Flammability | UL2556-VW1 (Cable), UL94-V0 (housing) |
| HS Code | 85176200 |
| Country of Origin | Germany |
Note: Voltage test of the complete cable between the inner conductor and outer sheath in accordance with EN 50395: 2005, section 6.
List of tested and compatible meters:
- e.HZ-BC-D4-A1-11 from Hausheld
- Picus+ from Apator
- eHZB-W24E8 from EMH
- DWZE12.2.G2 from DZG
- E320-eHZ from Landis+Gyr
- SGM-SN-A20B from EFR
- GH302.D-S2-05.04-30G from ZPA
If your electricity meter is not listed, you are welcome to send it to us for compatibility testing. To do so, please contact our sales department at vertrieb@enqt.de.
Product Video
