Description
Product Description
(High performance 5-8ghz outdoor wireless bridge ST515N)
ST515N Wireless Bridge Overview
The ST515N is a high-performance, multi-purpose 5.8GHz wireless bridge that runs on a Qualcomm core solution. It delivers high TX power, durable hardware, and a built-in 15dBi directional antenna, making it an ideal choice for medium- and short-range transmissions. The device works best within 3 kilometers and can reach a maximum transmission distance of 5 kilometers.
Applications and Use Cases
The ST515N supports a wide range of video surveillance scenarios in agriculture, forestry, industry, commerce, transportation, and docks. Its strong reliability ensures excellent performance in both outdoor and industrial applications.
Advanced iPoll 3 Technology
The ST515N integrates iPoll 3 intelligent dynamic polling protocol based on TDMA technology. Widely recognized in the wireless industry, iPoll 3 delivers excellent anti-interference capability. Even in high-density or interference-heavy environments, it ensures stable transmission and higher throughput.
QoS and Multi-Service Support
iPoll 3 also optimizes wireless traffic with QoS priority that supports DSCP mode under 802.1p. With support for four priority queues, the device provides reliable performance for multiple simultaneous services.
Durability and Protection
Designed to meet IP-66 waterproof standards, the ST515N withstands challenging outdoor conditions. It also complies with industrial-grade temperature and humidity requirements. In addition, its 2kV surge resistance design protects the device in complex electrical environments, ensuring long-term reliability.


Best alternative to high cost wired
High performance 5-8ghz outdoor wireless bridge ST515N can connect two or more local area networks (LAN) together. They transmit network datas through wireless signals, allowing wireless communication between different LANs. Simply put, it transmits network datas and network video surveillance through wireless instead of network cables. Wireless bridge networking usually consists of two or more devices forming a point-to-point or point-to-multipoint network. In many network communication scenarios where wiring is difficult or the distance is too long, the flexible and low-cost wireless bridge solutions can effectively replace wired networks.




Advanced QoS
- QoS in iPoll 3 supports transmitting pre-marked data according to priority.
- QoS (L2/L3 or DSCP/COS) – supports different priority traffic types (must be implemented with switches that support corresponding functional mechanisms)
- Providing 4 queue priorities for different services (best effort , background , video , voice)
- Strict policy based
- Supports multiple services (data , voice , video, etc.)


multiple bandwidthsSupporting 4.9Ghz~6Ghz ultra-wide frequency band. Providing much more options for channel planning and avoiding occupied channels. Supporting multiple bandwidths of 5Mhz/10Mhz/20Mhz/40Mhz. Providing greater flexibility for transmission distance/capacity/interference avoidance. The narrower the bandwidth, the longer the transmission distance, the stronger the anti-interference, the lower the throughput; the wider the bandwidth, the shorter the transmission distance, the weaker the anti-interference, and the higher throughput. Supporting non-standard channels. Non-standard channels have 5MHz channel step and allow users to select center frequencies will not be valid with 802.11 specification, bringing more possibilities for channel planning and interference avoidance.
Note: Please comply with local laws and regulations when selecting the corresponding channel.
Built-in rich and useful tool set
- Site survey
- Spectrum Analyzer
- Antenna alignment
- Link test
- Ping & Traceroute
With the tools users can easily and efficiently deploy and troubleshoot without resorting to third-party tools.




Network topology
- Point-to-point
- Point-to-multipoint
- Multi-hop transmission
- Hybrid networking (point-to-point + point-to-multipoint)
Application scenario
- Emergency communications
- Park video surveillance
- Street video surveillance
- Forest fire prevention
- Wireless broadband
- Power plant
- Environmental monitoring
- Construction tower crane
- Mine site

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