Anjielo is set to launch a WiFi HaLow bridge designed for the film and television industry.

WiFi HaLow Ethernet Bridge-68086PROJECT DESIGN

Industrial-grade Sub-1GHz wireless bridge for film set & IoT applications
Rev 1.0 · Anjielo

1. Product Positioning & Competitive Landscape

The WiFi HaLow Ethernet Bridge is an industrial-grade, long-range wireless bridge built on IEEE 802.11ah (WiFi HaLow) technology. It targets film-set camera control, remote monitoring, and low-bandwidth IoT applications where standard 2.4/5 GHz Wi-Fi fails to deliver reliable range and penetration.

The product is designed to compete directly with established solutions such as , while offering a differentiated feature set: wide-voltage DC input (5–36V), RJ45 Ethernet, and robust industrial construction.

Design conclusion: The product must establish differentiation through wide-voltage input, RJ45 wired access, and industrial-grade protection, while ensuring compliance with European 863–868 MHz and US 902–928 MHz bands.

2. Hardware Design

2.1 Core Chipset Selection

Recommended · Morse Micro MM8108

  • Modulation 256-QAM, up to 43.33 Mbps
  • PA Integration 26 dBm integrated PA
  • Footprint Smallest in class
  • Certification Global compliance ready

Alternative · Newracom NRC7394

  • Ecosystem Mature, modules from Murata/Teledatics
  • Performance Proven reliability
  • Cost Competitive BOM
  • Availability Broad supply chain

Selection rationale: The MM8108 is the current performance leader among HaLow SoCs, with integrated PA/LNA and no external SAW filter required for global certification. The NRC7394 is retained as a backup for cost optimization or supply chain resilience.

2.2 Power Architecture

┌─────────────────┐ │ Lemo 2-pin │──┐ │ 5–36V DC │ │ └─────────────────┘ │ ┌──────────────────┐ ├───►│ Wide-Vin DC-DC │───► 3.3V / 5V System Rails ┌─────────────────┐ │ │ (e.g. TPS54360) │ │ USB Type-C │──┘ └──────────────────┘ │ 5V (power only) │ └─────────────────┘
  • Lemo 2-pin input: 5–36V wide voltage, with reverse-polarity and over-voltage protection.
  • USB-C input: 5V only, power only (no data), for field debugging or backup power.
  • Status LED: Indicates power presence and system health.

2.3 Network Interface

RJ45 10/100 Mbps auto-negotiation
USB-C (power only, no data)
Transparent bridge mode

2.4 RF & Antenna

863–868 MHz (EU) / 902–928 MHz (US)
1/2/4/8 MHz channel bandwidth
SMA or N-type external antenna
Target RF power: 23 dBm+

The top-mounted black circular structure (visible in the 3D model, image 8) is interpreted as an external antenna connector (SMA or N-type), enabling high-gain antennas for extended range.

2.5 Status & Interaction

Component Location Function
LED indicators (×3 green) Side panel (image 9) Power, network status, signal strength
Pair / Reset button (orange) Side panel (images 6, 8) WPS pairing or factory reset

3. Mechanical Design

3.1 Enclosure

Form Factor

  • Shape Rounded rectangle, industrial aesthetic
  • Estimated size 120 × 90 × 45 mm
  • Material Aluminum alloy (thermal) or PC+ABS
  • Mounting Four corner screw holes (images 7, 10)

Environmental

  • Ingress protection IP67 target
  • Sealing Gaskets at interfaces and seams
  • Operating temp −20°C to +55°C
  • Vibration Lemo push-pull locking connector

3.2 Thermal Management

The MM8108 integrates a power amplifier, creating concentrated heat. Thermal design includes:

  • Thermal pads transferring heat from the SoC to the enclosure.
  • Optional heat-dissipating fins or metallic housing for improved convection.
  • Thermal simulation during validation to ensure stability under continuous load.

4. Software Design

Platform

  • OS OpenWrt-based
  • Modes Bridge, AP, STA
  • Pairing Push-button (like Spudnik)
  • Management Web UI + CLI

Networking Features

  • Transparent bridging Invisible on network
  • Throughput 5 Mbps to 1 Mbps adaptive
  • Security WPA3 / AES encryption
  • Scalability 1 RX to up to 4 TX units

5. Key Risks & Mitigation

Risk Impact Mitigation
MM8108 supply constraints Schedule delay Qualify MM6108 as drop-in alternative
Lemo connector cost Pricing pressure Evaluate aviation-grade alternative; keep Lemo for premium SKU
Global frequency compliance Market access Software-switchable bands; regional certification plan
Thermal density Stability Thermal simulation +导热 pad to enclosure

6. Design Validation Plan

RF range & penetration tests
5–36V wide-voltage endurance
EMC compliance
IP67 ingress testing
Camera compatibility (Sony/ARRI/RED)
Notes:. This document is a design proposal and subject to revision.
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