Architecture · Hybrid

Hybrid DAS

A fiber-optic backbone feeds distributed remote units throughout the building, ideal for large, complex, or multi-building layouts. Play the signal flow to watch RF convert to light at the master and back to RF at every remote.

Best fitUp to 1,000,000 sq ft
DistributionFiber backbone + coax
Core unitMaster BDA + remotes
MonitoringSNMP v3 + web
Band700/800 MHz

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How it works

System components

Fiber Backbone (OS2)Single-mode fiber in fire-rated pathways carries the signal with negligible loss over long runs.

Hybrid DAS signal chain: a roof donor antenna feeds a master 700/800 MHz bi-directional amplifier, which converts RF to optical and drives four fiber remote units. Each remote converts back to RF and feeds two ceiling antennas over short coax legs, for eight antennas in total. The master reports status over SNMP v3.
Stage	Element	Medium	Feeds	Role
1	Donor antenna	Coax	Master BDA	Roof donor antenna, aimed at the public-safety simulcast site and feeding the master unit
2	Master BDA	Fiber (OS2)	RU1–RU4	Master BDA, 700/800 MHz fiber master. Converts amplified RF to optical and drives every remote unit over single-mode fiber
3	Remote units RU1–RU4	Coax	A1–A8, two each	Fiber remote unit. Converts the optical backbone back to RF and amplifies locally, so run loss no longer scales with distance
4	Antennas A1–A8	—	Zone coverage	Ceiling dome antenna on a short coax leg from its remote unit
—	SNMP management	Ethernet	Network / FACP	SNMP v3 management: per-remote alarms, gain and status reported to the network and to the head-end web interface

Hybrid DAS · Fiber backbone + coax · Master BDA + remotes · SNMP v3 + webHybrid DAS, fiber backbone to remote units. Click any node — or any step or component below — to inspect it. Illustrative topology; remote count and zone layout are set by the RF design.