Solutions

CCTV Wireless Backhaul Solution

Wireless bridges replace cable or fibre from camera points to the equipment room — for roads, parks and construction sites where cabling is impractical, supporting point-to-point and point-to-multipoint topologies.

Roads & transportConstruction & miningParks & reservoirs

At a Glance

System build

Wireless Bridge / CPE + Outdoor Wireless AP + Switch / Gateway / AC Controller

Key models

CF-E120A V3 CF-E313AC V2 BS-900

Requirements

5items

Acceptance checks

3items

Scenario Images

1 / 4

Key Pain Points

Scattered camera points make per-point cabling costlier than equipment
Roads and riverbanks cannot be trenched
Legacy coax or cable links age and cause video stutter
New camera points must go live quickly

Solution Architecture

Point-to-point: a bridge pair links a remote point to the equipment room
Point-to-multipoint: a central station with directional antenna aggregates several links
Frequency plan: mainly 5.8GHz to avoid local interference
Protection: IP65/IP67 and lightning protection for outdoor mounting
Bandwidth sizing: choose bandwidth class by bitrate and channel count

On This Page

01Requirement Breakdown 02Zones & Topology 03Recommended Configuration 04Key Technical Points 05Installation & Commissioning 06Where These Projects Most Often Go Wrong 07Acceptance Criteria 08Sizing Rule & Pricing 09Recommended Products

Requirement Breakdown

Figures below are design assumptions for sizing, not measured site data — confirm against the actual site before ordering.

01Bandwidth first: total = per-stream bitrate × channels × 1.3 for protocol overhead and bursts. A 2MP H.265 main stream runs about 2–4Mbps and 4MP about 4–8Mbps.
02Distance tiers: 300M-class bridges to 300m, 900M-class from 300m to 3km, and beyond 3km directional antennas with a full link budget.
03Power: most bridges use non-standard 24V PoE or 12V DC, which is not interchangeable with 802.3af/at switches — they need their own supply or a PoE injector.
04Line of sight: verify on site that trees, buildings and terrain do not intrude; in NLOS cases shorten the hop or add a relay.
05Protection: outdoor points need IP65 or better plus surge protection and earthing.

Zones & Topology

Point-to-point: a bridge pair carries a remote camera cluster back to the equipment room.

Point-to-multipoint: a central station with directional or sector antennas aggregates several remote links.

Relay: where the span is too long or blocked, add a mid-hop and budget each leg separately.

Head end: the bridge drops into a switch on the NVR subnet, with a separate management VLAN for troubleshooting.

Standard Topology

Recommended Configuration

CF-E120A V3Wireless Bridge / CPEShort links, 2 units per link

300M 5.8GHz bridge for CCTV backhaul under 300m

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CF-E313AC V2Wireless Bridge / CPEMedium-range links, 2 units per link

900M 5.8GHz bridge for 300m–3km backhaul

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BS-900Wireless Bridge / CPESetup-free short-range links

5.8GHz bridge with LED pairing display, within 4km

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BS-500LWireless Bridge / CPELong-range links

High-power 5.8GHz bridge on non-standard 24V PoE

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CF-SG83Switch / Gateway / AC ControllerComms room access

8-port full-gigabit switch for bridges and NVR

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Configuration list as a table

Model	Quantity	Purpose
CF-E120A V3	Short links, 2 units per link	300M 5.8GHz bridge for CCTV backhaul under 300m
CF-E313AC V2	Medium-range links, 2 units per link	900M 5.8GHz bridge for 300m–3km backhaul
BS-900	Setup-free short-range links	5.8GHz bridge with LED pairing display, within 4km
BS-500L	Long-range links	High-power 5.8GHz bridge on non-standard 24V PoE
CF-SG83	Comms room access	8-port full-gigabit switch for bridges and NVR

Key Technical Points

Size the link before choosing hardware，20 channels of 4MP at 6Mbps is 120Mbps， about 156Mbps with margin — that needs a 900M-class bridge， not 300M.
Non-standard PoE is the classic CCTV trap，a 24V bridge will not run from a standard 48V PoE switch， and a 48V passive injector can destroy it.
Dry-weather acceptance is not enough，rain fade matters on long 5.8GHz links， so budget for wet weather.
When a bridge shares a pole with cameras，allow for alignment drift as the pole moves.

Installation & Commissioning

Start with a line-of-sight survey and link budget，distance， terrain， obstruction and rain margin — all four before fixing positions.
Raising a bridge 1–2m is often more effective than a higher-gain antenna; avoid mounting directly under metal roofing.
Check co-channel interference，survey before choosing a channel， and put adjacent links on different channels.
Commissioning order，align on RSSI → set the channel → measure throughput (iperf) → connect cameras.

Where These Projects Most Often Go Wrong

Choosing a bridge by distance without budgeting bandwidth，the link is long enough but the bitrate is not， so video stutters once all channels come online.
Powering a non-standard 24V bridge from a standard PoE switch，it will not start， or it will be damaged.
Commissioning on a dry day and signing off，wet-weather throughput drops and video drops packets.
No surge protection or earthing on bridges，batch failures in storm season.

Acceptance Criteria

Link throughput reaches at least 1.3× the total bitrate requirement in both dry and wet weather.
Packet loss below 0.1% over a soak test of 24 hours or more.
The link recovers automatically after a power cycle with no manual intervention.

Sizing Rule & Pricing

Sizing rule: bridges = links × 2 (relay hops counted separately); switches by aggregation point. Contact us to confirm pricing and whether injectors, surge protectors and mounts are included.

Send us your floor plan or site conditions and we will return a configuration list.