Teltonika TELTONIKA EBD021 Calyx 4G Network module

Teltonika Calyx 4G / EBD021 – Industrial mobile phone expansion for Raspberry Pi HAT+ The Teltonika Calyx 4G / EBD021 is an Embedded Cellular Raspberry Pi HAT+, Provides reliable LTE data connection to your Raspberry Pi 4 or 5 wherever Wi-Fi or Ethernet are missing or unstable. The compact HAT+ board is plugged directly into the 40-pin GPIO panel and seamlessly integrates with your embedded system. Essential features
4G (LTE CAT 4) mobile phone connection for Raspberry Pi 4/5
GPIO modem controller (wake-up / reset / management via Pi-pins)
PCM audio support for low-latency audio transmission
Industrial design – operating temperature –40 °C to +75 °C.
Compact design for professional IoT and M2M integrations

Mobile connectivity for embedded systems The Calyx 4G enables a stable Internet connection via LTE CAT 4 – Ideal for IoT gateways, industrial controllers or remote-controlled sensors. It supports 4G (LTE-FDD B1/B3/B5/B7/B8/B20/B28, LTE-TDD B38/B40/B41), 3G (B1/B8) and 2G (B3/B8) mobile bands, covering EMEA, Thailand, Australia and New Zealand :contentReference[oaicite:0]{index=0}. Seamless integration with Raspberry Pi The HAT+ form factor enables direct installation on your Raspberry Pi 4 or 5. The GPIO interface can be used to control wake-up, reset and status signals directly from the Pi. A PCM interface also allows clean audio integration for voice or sound transmission. Specifications (EBD02100000)
Mobile technology: 4G LTE CAT 4/3G/2G
LTE FDD 75 Mbps DL/50 Mbps UL; LTE TDD 65 Mbps DL/35 Mbps UL
2 × SMA (mobile) antenna connections
Dimensions 56 × 23.1 × 95.5 mm
Operating temperature: -40 °C to +75 °C
Power supply: Via GPIO (5 V / 3.3 V) or USB-C (5 V DC)
SIM slot 1 × nano SIM (4FF, push-pull)
Status LEDs: Power, NET IND, NET STAT
Weight approx.: 57 g
Includes: HAT+, mounting kit, GPIO extender, USB-C cable, quick start guide

Designed for industry and IoT Projects Thanks to its compact dimensions and industrial-grade electronics, the Calyx 4G is perfect for OEM projects, prototyping and research. It supports continuous operation at temperatures of –40 to +75°C and provides reliable data communication in the field – from Smart metering to Edge AI to remote controlled systems :contentReference[oacite:1]{index=1}. Support and Sales Note Teltonika Networks does not provide direct end customer support. Technical advice and support is provided exclusively through authorized sales partners such as voipdistri.com / VoIP.world, which are specialized in professional IoT and industrial network solutions. Frequently Asked Questions (FAQ) WAS is the Teltonika Calyx 4G / EBD021? A Raspberry Pi HAS+ module to add a 4G LTE mobile connection for embedded systems and IoT projects. Which Raspberry Pi models are Calyx compatible with? It can be connected directly to Raspberry Pi 4 and Raspberry Pi 5. What network technologies does the module support? 4G (LTE CAT 4), 3G and 2G mobile. Optional 5G versions of the Calyx series are also available :contentReference[oaicite:2]{index=2}. How is the Calyx HAT+ operated? Power is supplied via the GPIO pins (5 V/3.3 V) or alternatively via the USB-C port (5 V DC). Is the Calyx suitable for industrial use? Yes, it operates reliably within a temperature range of -40°C to +75°C and is mechanically robust. Is there support for private customers? Support and project consulting are provided exclusively through authorized Teltonika partners such as voipdistri.com. Trust & service
Industrial quality (−40 °C … +75 °C)
Official Teltonika Networks Distributor (voipdistri.com)
Advice and support for IoT and M2M integrations
Compatible with Raspberry Pi 4 and Pi 5

Request now and extend your embedded systems with reliable 4G connectivity – with the Teltonika Calyx EBD021.

This text is machine translated.