The Teltonika CALYX EBD021 is an industrial 4G LTE cellular Pi HAT designed to add professional-grade mobile connectivity to Raspberry Pi 4 and Raspberry Pi 5 platforms.
Built around LTE Cat 4, EBD021 delivers dependable connectivity for IoT gateways, edge computing, telemetry, automation, and industrial control—ideal for deployments where reliability and coverage matter more than peak speeds.
Key features:
- 4G LTE Cat 4 with 3G/2G fallback
- Designed for Raspberry Pi 4 & Raspberry Pi 5
- Dual SMA connectors for external cellular antennas
- Nano SIM slot (4FF)
- Industrial temperature range for field deployments
| Model | Teltonika CALYX EBD021 – 4G LTE Pi Hat |
|---|---|
| Mobile Module | 4G LTE-FDD (Cat 4) – 75 Mbps DL / 50 Mbps UL; LTE-TDD (Cat 4) – 65 Mbps DL / 35 Mbps UL; DC-HSPA+ – 42 Mbps DL / 5.76 Mbps UL; 3G – 384 kbps DL / 384 kbps UL; 2G EDGE – 236.8 kbps DL / 236.8 kbps UL; 2G GPRS – 85.6 kbps DL / 85.6 kbps UL |
| 3GPP Release | Release 9 |
| USB Interface | USB 2.0 Type-C (receptacle), data rate up to USB 3.0 standard |
| 40-pin GPIO Header | PWR_KEY: Modem on/off (Digital Input 0–3.3 V, active High pulse ≥ 500 ms) Modem Wake-Up: Exit sleep mode (Digital Input 0–3.3 V, active Low) Modem Reset: Reboot modem (Digital Input 0–3.3 V, active High) PCM: Digital audio interface (0–3.3 V logic) SIM_SELECT: Switch between physical SIM and eSIM (0–3.3 V, High = eSIM) |
| SIM Interface | 1 × Nano SIM slot (4FF), push-pull mechanism |
| Antenna Interfaces | 2 × SMA female connectors for Mobile (Main + Diversity) |
| Status LEDs | 1 × Power / NET IND / NET STAT Indicators |
| Power Input | 5 V DC via USB-C or Raspberry Pi 40-pin header (5 V and 3.3 V lines) |
| Dimensions (W × H × D) | 56 × 23.11 × 95.48 mm |
| Weight | 57 g |
| Mounting Options | Includes mounting kit for secure installation with Raspberry Pi enclosure |
| Operating Temperature | −40 °C to +75 °C |
| Regulatory Approvals | CE, UKCA, EAC, UCRF, RCM, CB, WEEE |
| EMC Compliance | EN 55032:2015 + A11:2020 + A1:2020 / EN 55035:2017 + A11:2020 / EN 61000-3-3:2013 + A1:2019 + A2:2021 / EN IEC 61000-3-2:2019 + A1:2021 + A2:2024 / EN 301 489-1 V2.2.3 / EN 301 489-17 V3.3.1 / EN 301 489-52 V1.2.1 |
| RF Compliance | EN 301 908-1 V15.2.1 / EN 301 908-2 V13.1.1 / EN 301 908-13 V13.2.1 / EN 301 908-25 V15.1.1 |
| Safety Standards | CE: EN IEC 62311:2020 / RCM: AS/NZS 62368.1:2022 / CB: EN IEC 62368-1:2020 + A11:2020 |
| Management & Monitoring | Compatible with Teltonika RMS for remote management, monitoring and firmware updates |
| Compatibility | Raspberry Pi 4 Model B and Raspberry Pi 5 (with standard HAT layout) |
| Typical Applications | CCTV & ANPR sites, environmental monitoring, SCADA nodes, POS failover WAN, smart cabinet control, pop-up connectivity points |
