Schema
- Introduzione
- How Does Long‑Join Enable Reliable Remote Control with UART/RS‑485?
- What Makes Zhaga Book 18 the Key to Modular Streetlight Intelligence?
- How Does the Solar‑Grid Hybrid System Ensure Uninterrupted Lighting?
- What Are the Integration Benefits of Combining All Three Technologies?
- Why Choose Long‑Join Prese fotocontrollate for Smart Streetlight Integration?
- Parole finali
Why settle for basic lighting when cities need intelligence? Streetlights today must do more than turn on and off. They need remote control, sensor compatibility, and reliable power—even when the sun disappears.
But finding one system that handles it all? That’s rare. At Long-Join, we’ve created a smart solution that combines UART control, Zhaga modularity, and solar-grid hybrid power. It’s everything your smart lighting project needs—without the hassle of piecing it together.
How Does Long‑Join Enable Reliable Remote Control with UART/RS‑485?
Overview of UART/RS‑485 as Industrial‑Grade Protocols

UART/RS‑485 offers proven, long‑distance wired control. They support multi‑node networks across streetlight runs. Data transfers are robust against electrical noise.
RS‑485 enables half-duplex communication, allowing multiple controllori di illuminazione to share the same bus. This makes it ideal for smart streetlight applications where uptime and consistency matter. Here is a table comparing some common street lighting protocols.
Protocollo | Tipo di comunicazione | Max Distance | Caso d'uso comune | Gateway richiesto |
UART | Wired | <15m | Internal controller interface | NO |
RS-485 | Wired (differential) | >1200m | Industrial SCADA integration | NO |
ZigBee | Wireless (mesh) | ~100m | Smart city lighting mesh | SÌ |
LoRa | Wireless (long-range) | >2km | Rural/low-power environments | SÌ |
Role of JL‑243C and JL‑244C Series in Wired Control
The JL‑243C/244C series embeds RS‑485 or UART into the photocell controller. They directly talk to Modbus, SCADA, or PLC systems. These models handle dimming logic, firmware updates, and diagnostics.
This eliminates the need for separate protocol gateways. The housing is IP-rated for outdoor use. UL E CE certifications ensure regulatory compliance in harsh environments.
Vantaggi principali
Easy integration
IL sensori di luce communicate natively with industrial control systems, enabling easy deployment in existing infrastructure.
Real-time monitoring, dimming, and failure diagnostics
Operators can track voltage, current, temperature, and lamp status in real time, enabling faster maintenance.
Reduced Costs
Built-in protocol support removes the need for extra hardware. There’s no need for converters or middleware. That lowers system complexity and total project cost.
What Makes Zhaga Book 18 the Key to Modular Streetlight Intelligence?
Zhaga Libro 18 defines a standard interface between luminaires and smart sensori fotografici or communication modules. Here’s how it benefits:
- Certified components from different brands plug in seamlessly.
- This plug‑and‑play design enables future upgrades without rewiring the fixture.
- It accelerates deployment while reducing long‑term maintenance and integration costs.
- Zhaga-D4i certification ensures components meet power, mechanical, and communication specs reliably.
Features of JL‑700 Series Zhaga Receptacles

Compatibility with microwave, BLE, LoRa, ZigBee sensors
The JL‑700 socket supports low‑voltage sensor modules from multiple ecosystems. Here is a table showing different sensor types compatible with Zhaga receptacles.
Tipo di sensore | Functionality | Uso tipico | Power Requirement |
Sensore a microonde | Motion detection | Dim on approach in streets/parks | 12V DC |
BLE Module | Short-range wireless communication | App-based control or data relay | 5V DC |
ZigBee Module | Mesh network integration | Large-scale urban lighting | 3.3–5V DC |
LoRa Node | Long-distance communication | Remote/rural lighting setups | 3.3V DC |
IP66 sealing and ANSI C136.41 compliance
Rugged construction with seal integrity, certified for harsh outdoor use.
Onboard 5V/12V auxiliary power for external modules
Provides power directly to plug‑in modules, reducing external wiring needs.
How Long‑Join Enables OEM‑Level Customization and Flexibility
Long‑Join offers multiple JL‑700 variants, including pre‑wired and leadless models. These are certified to Zhaga Book 18 and DEKRA-tested for robust performance. OEMs can choose form factor, cable version, or socket-only versions depending on luminaire design.
This flexibility accelerates integration while supporting hot-plug convenience on top, side, or bottom mounts. Whether integrating LoRa nodes, BLE devices, or custom sensing modules, Long‑Join adapts to customer requirements efficiently.
How Does the Solar‑Grid Hybrid System Ensure Uninterrupted Lighting?
In areas with irregular sunshine or frequent cloudy days, solar-only street lights often fail when batteries deplete. Here is a table outlining system behaviors under varying sunlight conditions.
Condition | Battery Voltage | Power Source Used | Lighting Status |
Full sun, daytime | >13.5V | Solar only | Off or dim |
Cloudy, partial charge | 11.5–13V | Solar + Grid backup | Normal operation |
Night, low battery | <11.0V | Grid only | Full brightness |
Battery failure detected | N / A | Grid only | Emergency backup active |
Hybrid systems address this by combining solar panels with grid access. This ensures reliable power even when solar generation is low.
How LongJoin’s Hybrid Architecture Works
Long‑Join’s hybrid setup gives solar input first priority and uses grid backup only when needed. An intelligent controller monitors battery voltage and solar charge. If battery drops below threshold, power switches to AC grid automatically. Once solar charging restores sufficient state‑of‑charge, control reverts back to solar‑powered operation.
The system includes a transfer switch or hybrid inverter mechanism to manage AC/DC switching seamlessly. These components synchronize the grid and the inverter output to avoid any power interruptions.

Risultati
- Blackouts are less likely. If solar fails, the grid takes over instantly. Lights stay on, even during several cloudy nights.
- Battery life improves. Batteries don’t go through deep discharges. This helps them last much longer.
- Energy costs drop. Solar power runs the system most of the time. The grid only helps when needed. Over time, this can cut electricity bills by up to 75%.
What Are the Integration Benefits of Combining All Three Technologies?
UART/RS‑485, Zhaga sockets, and solar-grid hybrid power all have their distinct features. Combining them could help build a smarter lighting system. These technologies work together to streamline design and reduce complexity. They allow centralized control from a single platform. The system also ensures reliable operation in different environments and lighting projects.
Unified System Design
By embedding communication, modular interfaces, and power switching into one regolatore di luce, Long‑Join reduces component count. Fewer cables and devices mean faster installation and lower material costs. This streamlined design reduces error points and simplifies maintenance over the system’s lifespan.
Enhanced Interoperability and Centralized Control
With built-in RS‑485/UART communication and Zhaga expansion, Long‑Join enables true interoperability. Light control switches, IoT modules, and power logic all connect to one node. A central management system can then poll every function—lighting status, sensor readings, battery voltage, and diagnostics—from one dashboard.
This unified access eliminates fragmentation and speeds up diagnostics and updates.
Here is a table outlining Long‑Join’s all-in-one architecture use case scenarios.
Tipo di progetto | UART/RS-485 Use | Zhaga Use | Solar-Grid Hybrid Use |
Smart Highways | SÌ | Yes (radar sensor) | Optional for emergency zones |
Remote Villages | NO | Yes (LoRa node) | SÌ |
Urban Smart City Zones | SÌ | Yes (BLE/ZigBee) | NO |
Military Installations | SÌ | Yes (secure comm) | SÌ |
A single Long‑Join handles fotocellula crepuscolare duties, hybrid power switching, and sensor modules plugged through Zhaga Book 18. This eliminates multiple controllers and gateways on each pole. With everything under one device, upgrades become simpler, and scalability increases.
Why Choose Long‑Join Prese fotocontrollate for Smart Streetlight Integration?

Long‑Join has over two decades of experience in developing photocell sensors and lighting control products. Here is a quick overview:
- It was founded in 1996.
- It now operates in a 38,000 m² production facility
- The company delivers more than 8 million controllers annually.
This scale and heritage reflect deep expertise in cost‑effective, reliable design for challenging outdoor environments.
Strategic Partnerships with Philips, Tork, and Cree
Through longstanding OEM collaboration, Long‑Join has served major lighting brands including Signify (Philips), Cree, GE, and Eaton. These relationships showcase its capability to meet stringent lighting brand specifications and integrate with globally recognized systems.
North American Market Leader with Deep Standards Expertise
Long‑Join products meet ANSI C136.10, ANSI C136.41, and NEMA standards and command over 50 % of the U.S. market for bimetallic photocontrols. UL, CE, cUL, Direttiva RoHS, and Zhaga certifications further confirm its compliance with international regulations.
Capabilities That Set Long‑Join Apart
In‑house R&D for Protocol Customization
A dedicated R&D team has secured multiple national patents and developed custom solutions, including UART/RS‑485 integration and Zhaga compatibility.
Turnkey OEM/ODM Support
With full-cycle OEM/ODM services, Long‑Join offers tailored product design, packaging, and technical support. Clients can request customized photocell configurations or socket variations based on project requirements.
Parole finali
Smart street lighting demands seamless control, flexible design, and dependable power. Long-Join’s integrated approach meets all three needs in one intelligent system. For trusted performance, Chi-Swear offers Long-Join smart photocells backed by expert support and proven reliability.
Link esterni
- https://en.wikipedia.org/wiki/RS-485
- https://www.ul.com/services/certification
- https://europa.eu/youreurope/business/product-requirements/labels-markings/ce-marking/index_en.htm
- https://www.zhagastandard.org/books/overview/smart-interface-between-outdoor-luminaires-and-sensing-communication-modules-18.html
- https://en.wikipedia.org/wiki/Zigbee
- https://en.wikipedia.org/wiki/LoRa
- https://www.ansi.org/
- https://en.wikipedia.org/wiki/RoHS