Teltonika · Modem · EBD050 · Calyx PI-Compatible 5G

Highlights of the 5G-capable Calyx PI Teltonika modem

• Direct mounting on Raspberry Pi 4/5 via 40-pin GPIO header
• 5G speeds in the Sub-6GHz range up to 3.4 Gbit/s downlink (4x4 MIMO)
• GPIO control of the modem: wake-up, reset, and activation via pulse
• PCM audio for low-latency audio transmission
• USB 3.0 via USB Type-C port
• Four antennas with SMA connectors for cellular connectivity
• Operating temperature from -40 °C to 75 °C

Cellular performance and data rates

The modem supports 5G NR in SA and NSA modes on Sub-6GHz frequencies. In SA/NSA mode, it achieves downlink speeds of 2.4/3.4 Gbit/s with 4x4 MIMO and uplink speeds of 900/550 Mbit/s in 2x2 operation. In standalone 5G NR SA mode, the downlink speed is 223 Mbit/s and the uplink speed is 123 Mbit/s.

4G LTE Cat 19 compatibility enables downlink speeds of up to 1.6 Gbit/s and uplink speeds of up to 200 Mbit/s. The modem also supports 4G LTE Cat 4 with up to 195 Mbit/s downlink and 105 Mbit/s uplink, as well as 3G with up to 42 Mbit/s downlink and 5.76 Mbit/s uplink. The cellular module complies with 3GPP Release 17.

Design and power supply

The modem measures 56 x 23.11 x 100.8 mm and weighs 57 g. It is attached to the Raspberry Pi 4/5 using the included mounting kit. Power is supplied via the 40-pin header with 5 VDC and 3.3 VDC at an input voltage of 5 VDC.

Four SMA antenna connectors are provided for cellular connectivity. The SIM card slot accommodates a nano-SIM (4FF) with a push-pull mechanism. Status LEDs indicate power, NET IND, and NET STAT.

GPIO control and interfaces

The 40-pin GPIO header enables direct control of the modem via Raspberry Pi pins. The PWR_KEY function activates the modem with a pulse of at least 500 ms on a digital input with a logic level of 0–3.3 V, active high. Waking the modem is done via a digital input with a logic level of 0–3.3 V, active low. Resetting the modem is performed via a digital input with a logic level of 0–3.3 V, active high.

A PCM audio interface provides digital audio transmission with a logic level of 0–3.3 V. Data connectivity is provided via a USB Type-C port with USB 3.0 speed.

Frequency bands and regional coverage

For the EMEA, APAC, and Brazil regions, the modem covers 5G NR bands n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n71, n75, n76, n77, and n78. The 4G LTE FDD bands include B1, B3, B5, B7, B8, B20, B28, B32, and B71, while the LTE TDD bands cover B38, B40, B41, B42, and B43. The supported 3G bands are B1, B5, and B8.

For North America, the 5G NR SA and NSA bands include n2, n5, n7, n12, n13, n14, n25, n26, n29, n30, n38, n41, n48, n66, n70, n71, n77, and n78. The 4G LTE FDD bands cover B2, B4, B5, B7, B12, B13, B14, B17, B25, B26, B29, B30, B66, and B71, while the LTE TDD bands include B38, B41, B42, B43, and B48.

Compliance and certifications

The modem holds CE, UKCA, EAC, UCRF, FCC, ISED (IC), RCM, CB, and WEEE certifications. It complies with standards EN 55032:2015+A11:2020+A1:2020 and EN 55035:2017+A11:2020 for electromagnetic compatibility, as well as EN 61000-3-3:2013+A1:2019+A2:2021 and EN IEC 61000-3-2:2019+A1:2021+A2:2024 for harmonic emissions. Radio compliance includes EN 301 489-1 V2.2.3 and EN 301 489-3 V2.3.2. The operating temperature range is from -40 °C to 75 °C.