The transition from 4G to 5G is well underway, and IoT devices are finally getting a purpose-built middle ground between LTE and full-fat 5G. That middle ground is 5G RedCap — a streamlined, power-efficient version of 5G designed specifically for industrial IoT, smart devices, and embedded systems.

The Teltonika CALYX EBD070 5G RedCap Pi-HAT is Teltonika’s first embedded cellular module designed for Raspberry Pi and single-board-computer integrators who need robust, low-power, long-lifespan mobile connectivity in a compact, plug-on form factor.

If you work in IoT development, industrial automation, EV charging, smart-city deployment, kiosks, security, or energy systems, this is a serious new option: an embedded 5G RedCap modem that delivers the performance of industrial M2M hardware without the bulk of a router.

This article explores what the EBD070 is, what it solves, its detailed specifications, verticals, and why moving to 5G RedCap-ready hardware today is the smartest possible decision for IoT rollouts in the UK.

What Is the Teltonika CALYX EBD070?

The CALYX EBD070 is a compact, industrial-grade 5G RedCap modem module, shaped as a Raspberry Pi HAT+. It mounts cleanly on Raspberry Pi 4 and 5 and adds true mobile WAN connectivity anywhere you need it — all without external dongles or bulky enclosures.

It is available as one of three variants in the CALYX family:

• EBD021 – 4G Cat 4
• EBD070 – 5G RedCap (this model)
• EBD050 – Full 5G Sub-6

The EBD070 sits in the sweet spot: full 5G NR SA support with 4G fallback, but lower power, lower cost, and far simpler hardware than full 5G eMBB modules.

The moment 5G RedCap rolls out across the UK, this module becomes even more valuable — but you can deploy it today with no concerns.

Key Benefits of the EBD070 5G RedCap Module

5G RedCap: The New Standard for Industrial IoT

5G RedCap delivers a major leap from Cat 1 and Cat 4 while avoiding the energy and cost overheads of full 5G. Think of it as a modernised, efficient replacement for 4G M2M modems.

Embedded, Rugged, and SBC-Friendly

CALYX mounts directly on Raspberry Pi 4/5 using the 40-pin header. It’s compact, tidy, secure, and far more professional than USB modems.

Global Band Support

The EBD070 variant supports a very wide band set — essentially global. This makes it ideal for OEM products you intend to export or certify internationally.

Industrial GPIO Modem Control

The Pi can wake, sleep, or reset the modem through GPIO. This is essential for edge devices that need power management, watchdog control, or event-based behaviour.

PCM Digital Audio Interface

The module includes a PCM interface for digital audio transport, enabling:

• voice applications
• local audio processing
• two-way comms (e.g., kiosks, intercoms, vending systems)

USB-C High-Speed Interface

Clean connectivity with the Pi for data, control and firmware updates.

Proven Teltonika Quality

Wide temperature range, durable components, consistent firmware, and full regulatory certification.

Features at a Glance

• 5G RedCap SA modem
  223 Mbps downlink / 123 Mbps uplink
• 4G LTE fallback
  195 Mbps DL / 105 Mbps UL (Cat 4 profile)
• Global NR and LTE band set
  Suitable for EMEA, APAC, Americas
• Compact embedded Pi-HAT format
  56 × 23.11 × 95.48 mm
• Dual SMA antenna ports
  Professional RF-grade connectors
• PCM audio interface
  Low-latency digital audio
• Modem control via GPIO
  Wake, reset, SIM select, enable eSIM
• Wide temperature tolerance
  –40 °C to +75 °C
• Nano-SIM slot + optional eSIM switching
• USB-C port for data
• Raspberry Pi 4/5 40-pin header power and IO

Ideal Applications & Verticals

The EBD070 enables embedded cellular inside almost any IoT product. Because it is RedCap-focused, it suits long-term, power-efficient deployments that require strong reliability rather than huge bandwidth.

Industrial & Automation

• Edge PLC nodes
• SCADA gateways
• Predictive maintenance units
• Factory sensors
• Local HMI/IPC devices

Smart City

• Smart lighting
• Parking systems
• CCTV analytics nodes
• Air quality & environmental sensors

Energy & Utilities

• EV charging controllers
• Substation monitoring
• Water/waste telemetry
• Solar/battery systems

Security & CCTV

• ANPR units
• Compact Pi-based NVR transmitters
• Temporary surveillance nodes
• Rapid deployment towers

Retail & Kiosk

• Payment terminals
• Smart vending
• Kiosks & signage
• Ticketing machines

Transport & Logistics

• Vehicle gateways
• Asset trackers
• Cabin/driver monitoring systems

The reason this module is so flexible is simple: it turns any Pi into a small industrial IoT gateway with mobile WAN and GPIO control.

Technical Specifications

Model

CALYX EBD070 – 5G RedCap Pi-HAT

Cellular Technology

5G NR (SA only) – RedCap / Release 17
DL: 223 Mbps
UL: 123 Mbps

4G LTE (Cat 4)
DL: 195 Mbps
UL: 105 Mbps

Band Support

5G NR SA Bands

n1, n2, n3, n5, n7, n8, n12, n13, n14, n18, n20, n25, n26, n28, n30,
n38, n40, n41, n48, n66, n70, n71, n77, n78, n79

4G LTE-FDD

B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17, B18, B19, B20,
B25, B26, B28, B30, B66, B70, B71

4G LTE-TDD

B34, B38, B39, B40, B41, B42, B43, B48

Physical

• Dimensions: 56 × 23.11 × 95.48 mm
• Weight: 57 g
• SIM: Nano SIM (4FF) push-pull
• Antennas: 2 × SMA (mobile)
• USB: USB-C (USB 2.0 for RedCap module)

Interfaces

• 40-pin GPIO header
  • 5V / 3.3V supply
  • PWR_KEY
  • Wake
  • Reset
  • SIM_Select (SIM ↔ eSIM)
  • PCM digital audio
• Status LEDs
  • Power LED
  • NET_IND
  • NET_STAT

Operating Environment

• Temperature: –40 °C to +75 °C
• Certifications: CE, UKCA, EAC, FCC, ISED, RCM, CB

Why 5G RedCap Matters for IoT

5G RedCap is not a “cut-down” version of 5G — it’s purpose-built for IoT and industrial devices.

It sits neatly between:

• LTE Cat 1 / Cat 4
• Full 5G eMBB

RedCap removes the unnecessary complexity (massive MIMO, ultra-high bandwidth), keeps latency improvements, and reduces the silicon, antenna count, heat, and power consumption.

The big wins:

• Lower power consumption
• Cheaper hardware
• Longer device life
• Wider 5G coverage (overcoming 4G congestion in future)
• Smooth network evolution for IoT fleets

For industries deploying thousands of devices, the cost and power savings add up dramatically.

UK RedCap Rollout: What to Expect

UK carriers have been trialling RedCap since 2023, with commercial rollout expected between 2025 and 2027 as networks migrate IoT estates off older LTE layers.

This aligns perfectly with Teltonika’s release of the CALYX EBD070.

Today:

• RedCap isn’t live nationwide yet.
• But 4G is fully supported, and the module is engineered to run flawlessly on LTE until RedCap arrives.

Within the next few years:

• RedCap layers will become the preferred IoT channel.
• Carriers will encourage (or enforce) migration away from legacy LTE categories.
• Modules that aren’t RedCap-capable will become harder to source and certify.

Why Deploy RedCap-Ready Hardware Now (Even on 4G)

1. Avoid expensive future hardware swaps

If you deploy Cat 4 today, you’ll eventually replace it. RedCap hardware avoids that.

2. Faster time-to-market

Get your device RedCap-ready now, test today, deploy tomorrow.

3. Global compatibility

The EBD070 includes one of the widest band sets on any embedded module.

4. Longer operational life

Massive IoT estates need hardware that will still be supported in 2030.

5. Better network experience

When RedCap goes live, your devices will automatically move to less congested 5G layers.

6. Stronger commercial story

Deploying a modern “5G RedCap Ready Device” is a powerful selling point for OEMs and integrators.

Final Thoughts

The Teltonika CALYX EBD070 5G RedCap Pi-HAT is the most exciting embedded cellular release Teltonika has delivered in years. It hits the perfect balance of power, efficiency, ruggedness and ease of integration.

For developers and OEMs building the next wave of industrial and smart-city devices, it provides the foundation for future-proof mobile connectivity, without the size, cost or bulk of an industrial router.

If your project needs:

• embedded cellular
• compact integration
• long-term reliability
• global certification
• 5G-ready architecture

…the CALYX EBD070 is the right option.

A Teltonika CALYX eSIM version will be available in 2026