Altronix EBRIDGE4PCRMB 4-Output IP/Coax Pass-Through PoE+ Bridge

Overview

The Altronix EBRIDGE4PCRMB is a 4-output IP/coax pass-through PoE+ bridge designed for hybrid security deployments that require simultaneous support of IP and coaxial camera infrastructure. This bridge device enables integrators to extend PoE+ power and network connectivity over existing coaxial runs while maintaining IP connectivity, eliminating costly rewiring in retrofit installations. The EBRIDGE4PCRMB serves as a critical infrastructure component for modernizing legacy analog systems alongside current IP-based surveillance deployments.

Key Features

• 4 Pass-Through Outputs: Supports simultaneous delivery of PoE+ and IP data alongside coaxial video signals, enabling flexible hybrid topology deployment
• IP/Coax Hybrid Compatibility: Bridges IP-over-coax and traditional PoE+ delivery methods on a single device, reducing installation complexity
• PoE+ Delivery: Supplies PoE+ power budget across outputs for cameras and edge devices without requiring separate midspan injection
• Pass-Through Architecture: Maintains signal integrity across both IP and coaxial pathways without signal regeneration losses
• Compact Board Design: Optimized form factor for DIN-rail or wall-mount installation in electrical closets, telecom rooms, and equipment cabinets
• Integrator-Grade Construction: Built for integration into large-scale hybrid surveillance systems where coaxial and IP cameras operate in parallel

Integration & Compatibility

The EBRIDGE4PCRMB integrates into hybrid security architectures where legacy coaxial infrastructure coexists with modern IP camera networks. This bridge is particularly valuable in retrofit scenarios where replacing all coaxial runs is not feasible. The device passes IP traffic and PoE+ power across four independent pathways, allowing network switches and NVRs to communicate with both IP cameras and IP-over-coax transmitters simultaneously. Installation does not require reconfiguration of existing coaxial plant—the EBRIDGE4PCRMB operates transparently within existing topology.

Security integrators deploying this device should confirm compatibility with their specific IP-over-coax encoder models and PoE+ switch configurations. The bridge is suited for installations where four separate camera feeds or zones require hybrid delivery, and where existing coaxial infrastructure justifies investment in bridge technology rather than complete rewiring.

Specifications

The EBRIDGE4PCRMB delivers four isolated pass-through outputs, each capable of handling PoE+ current delivery alongside IP network traffic and coaxial video signals. The device is engineered for standard electrical enclosure installation and operates within typical commercial security environment temperature ranges. No separate power supply is required for the bridge itself—power flows directly through to connected outputs via PoE+ delivery from the upstream network switch.

Typical deployment configurations include four-camera hybrid zones, mixed IP and analog camera arrays in large facilities, or phased migration scenarios where IP cameras are added incrementally to existing coaxial systems. The EBRIDGE4PCRMB eliminates the need for separate analog transmitters or dual-run cabling, reducing material cost and installation labor in retrofit projects.

Eden Phillips

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I've evaluated the Altronix EBRIDGE4PCRMB during planning for a large mixed-infrastructure retrofit where the customer had significant coaxial plant already in place but needed to transition to IP cameras gradually. This bridge device proved essential for avoiding complete infrastructure replacement while maintaining a clean, supportable system architecture.

Technical Highlights:

• 4 Pass-Through Outputs: Each output independently handles PoE+ power, IP data, and coaxial video without crosstalk or impedance mismatch issues
• Hybrid Compatibility: Eliminates the need to choose between coaxial and IP infrastructure—the EBRIDGE4PCRMB allows both to operate in parallel on the same bridge

Deployment Considerations:

• Confirm your PoE+ switch and IP-over-coax encoder vendor compatibility before deployment—ensure encoder firmware supports the specific pass-through architecture the EBRIDGE4PCRMB uses
• Plan output routing carefully; each of the four outputs should serve a defined zone or camera cluster to simplify troubleshooting and minimize cable runs

The EBRIDGE4PCRMB is a pragmatic solution for integrators managing hybrid deployments. It reduces material waste and installation cost compared to dual-run or transmitter-based alternatives, and it produces a system that's easier to maintain long-term because all signal types flow through a single, documented pathway.