1+1 Master-Slave Broadcast Redundancy Switch with Video Freeze, Black Screen & Audio Silence Detection | 3G/HD/SD-SDI Failover Switch with Dual SDI Loopouts for PIS & Live Transmission
Key Features:
- 1+1 MASTER-SLAVE REDUNDANCY & FAILOVER: Features intelligent automatic switching between Master (SDI 1) and Slave (SDI 2) inputs. Designed for mission-critical broadcast environments, train Passenger Information Systems (PIS), and live video production, it instantly switches to the secondary input when the primary signal is lost, ensuring continuous, uninterrupted transmission.
- 2 x SAME OUT: Built with 2-channel SDI inputs and 2 x SAME SDI Source out
- BROADCAST QUALITY & WIDE FORMAT SUPPORT: Delivers 1:1 signal passthrough keeping the exact input quality with zero latency or distortion. Fully supports 3G-SDI, HD-SDI, SD-SDI, and DVB-ASI signals at resolutions including 1080p @ 60/50Hz, 1080i @ 60/50/30Hz, 720p @ 60/50Hz, and SD 576i.
- COMPACT INDUSTRIAL DESIGN: Housed in an ultra-compact metallic enclosure measuring 120 x 104 x 28 mm. Operates on low-voltage DC 5V power and supports both standalone desktop positioning and mountable installation for control racks, OB vans, or transit equipment cabinets.
Product Overview / Description
The 3G-SDI 2x1 Master-Slave Redundancy Switcher is a high-performance, broadcast-grade auto-changeover solution designed to eliminate downtime in critical video workflows. Ideal for broadcasting systems, live events, outdoor production trucks, and rail transit Passenger Information Systems (PIS), this switcher guarantees active signal continuity by monitoring feed health in real time.
How It Works
Under normal operation, SDI 1 serves as the primary Master input. The internal monitoring unit constantly evaluates video and audio integrity. Should SDI 1 suffer signal loss, video freezing, black frames, or silent audio, the device instantly triggers auto-switchover to SDI 2 (Slave).
I/O Configuration
- Inputs: 2× BNC SDI Inputs (SDI 1 Master / SDI 2 Slave)
- Outputs: 2× BNC SDI SAME OUTPUT, when SDI 1 Master works, both show the SDI 1 Video, when SDI 2 Slave works, both show the SDI 2 video
Technical Specifications
| Specification | Details |
| Product Name | 3G-SDI Master-Slave Redundancy Switcher |
| Failover Mode | 1+1 Master-Slave Auto Changeover |
| Detection Metrics | Video Freeze Detection, Black Screen Detection, Audio Silence Monitoring |
| Supported Formats | 3G-SDI, HD-SDI, SD-SDI, DVB-ASI |
| Video Resolutions | 1080p @ 60/50Hz, 1080i @ 60/50/30Hz, 720p @ 60/50Hz, 576i |
| Input Ports | 2× BNC (SDI 1 Master, SDI 2 Slave) |
| Out Ports | 2× BNC (Both for the Same SDI source) |
| Power Supply | DC 5V |
| Dimensions | 120 × 104 × 28 mm |
| Installation | Standalone Desktop or Mountable |
Package: 1 x Switcher + 1 x Power Supply Adapter with US/EU/UK/AU
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