
Strong Compatibility
TP-TTL supports multiple brands and types of meters, works with common metering protocols, and can be integrated with different operating systems and terminal platforms.
The TP-TTL series optical probe is externally powered and designed for TTL 3.3-5 V meter communication interfaces. It supports multiple meter protocols, customizable connectors and wide-temperature cables for reliable field integration with smart meter terminals.

TP-TTL supports multiple brands and types of meters, works with common metering protocols, and can be integrated with different operating systems and terminal platforms.

The probe is built for reliable communication with TTL-based collection devices, helping remove bulky adapters and support direct terminal integration.

Communication rates from 300 to 115200 bps and transparent transfer mode help simplify integration with meters and custom instruments.

Wide-temperature cable material, strong magnetic adhesion and durable enclosure construction support normal operation from -40 C to +70 C.
| Product Model | TP-TTL Level |
|---|---|
| Communication Interface | TTL 3.3-5 V |
| Supported Standards | IEC 62056-21 / ANSI / ANSI-Type2 / DL/T-645 |
| Sub-Models | TP-TTL-IEC: IEC 62056-21 Mode C and E; TP-TTL-ANSI-N: ANSI C12.18; TP-TTL-ANSI-S: ANSI C12.18-2006 Type2; TP-TTL-IR645: DL/T-645-97/07 |
| Maximum Baud Rate | 57600 bps in normal operation; maximum 115200 bps available |
| Connector | Aviation plug / customized connector |
| Sensor Light Wavelength | ~900 nm |
| Cable Length | 2 m standard; 3 m / 4 m / 5 m optional |
| Fastening | Strong magnetic adhesion in accordance with IEC 62056-21 |
| Magnet Holding Power | N40 / N52 optional |
| Operating Temperature | -40 C to +70 C |
| Dimensions | Optical port 32 mm diameter / L45 x H30 mm |
| Weight | 88 g |
| Enclosure Material | PC |
| Protection Class | IP54 |
For IoT solution providers building custom smart meter terminals, TP-TTL provides a native TTL interface that can connect directly to collection devices. This helps reduce adapter complexity, improve data transmission stability and shorten integration time.
TP-TTL is used for optical communication between smart meters and TTL 3.3-5 V collection terminals or custom devices.
The series supports IEC 62056-21, ANSI C12.18, ANSI C12.18-2006 Type2 and DL/T-645 variants depending on sub-model.
Yes. The probe supports aviation plug and customized connector options for different project hardware.
Please contact Sales for a discount and project quotation.