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ICAO Annex 14 Medium Intensity >2000 Cd 48V DC + 230V AC IP65 Fault Monitoring NMS Output

Medium Intensity Type B Aviation Obstruction Light with Fault Monitoring

ICAO-compliant medium intensity aviation light with a dedicated fault monitoring alarm panel. Continuously monitors current draw to detect LED failures and power supply faults — and raises NMS relay alarms before any undetected obstruction light failure creates a compliance or safety risk.

Light Fail Detection
Power Fail Detection
NMS Relay Output
LDR Auto Day/Night Switch
Medium Intensity Type B Aviation Obstruction Light with Fault Monitoring by Spaceage Security Systems Ltd.

How Fault Monitoring Works

The alarm panel monitors current consumption in real time and raises alerts before failures go undetected.

⚡
Monitor Current
Panel reads live current draw of the aviation light
📊
Compare Threshold
If current <65% of rated value → LED failure suspected
🚨
Raise Alarm
Light Fail or Power Fail alarm triggered instantly
📡
NMS Output
NO/NC relay contact output to NMS or BMS system
Light Fail Alarm
Triggered when current consumption drops below 65% of rated value — indicating LED circuit degradation or complete lamp failure.
Power Fail Alarm
Triggered when the mains supply to the aviation light is lost — separate from LED failure, ensuring both fault types are caught.

Technical Specifications

Optical & Electrical — Aviation Light
Product CodesSSSL-MB-24D (24V DC) / SSSL-MB-D (48V DC) with fault panel
Type of LightLED Light
Supply Voltage24V DC ±10% or 48V DC ±10% (DC input); 180–250V AC (AC input)
Light Intensity>2000 Candelas (Cd)
ICAO ComplianceMedium Intensity Type B — ICAO Annex 14
Light Source480 high-power LEDs from reputed sources
LED ColourRed
LED Life50,000 Hours
LED Clusters in Parallel120 parallel circuits
Power Consumption30W Peak, 15W Average
Power Factor>0.95
FlashingYes
Flashing Frequency20–60 flashes per minute
Inbuilt Photo SensorLDR photocell — auto ON/OFF based on ambient light
Light Spread360° horizontal — as per ICAO norms
Fault Monitoring Alarm Panel
Fault Detection MethodCurrent consumption monitoring
Light Fail ThresholdCurrent <65% of rated value triggers light fail alarm
Power Fail MonitoringYes — separate alarm for power supply failure
NMS OutputRelay NO/NC output for both fault types
Day/Night SwitchingLDR (Light Dependent Resistor) photocell auto switching
Physical & Environmental
Dome MaterialClear glass dome (does not deteriorate like plastics)
Base MaterialHigh-grade cast aluminium
FinishOrange epoxy powder coated on aluminium base
Environmental ProtectionIP65
Bird SpikeYes, built-in
Operating Temperature-10°C to +60°C
MountingDrill/weld-free mounting arrangement provided

Applications

The fault monitoring variant is essential wherever undetected aviation light failure creates a safety or compliance risk.

Telecom Towers

NMS alarm integration ensures operations teams are notified immediately if the aviation light fails — critical for compliance.

Wind Farms

Remote sites with minimal human inspection benefit greatly from automated fault detection.

High-Rise Buildings

Building management systems can receive fault alarms and dispatch maintenance proactively.

Compliance-Critical Sites

Airport authority regulations require verifiable monitoring — the alarm panel provides an auditable fault trail.

Frequently Asked Questions

The fault monitoring alarm panel continuously monitors the current consumption of the aviation light. If the current falls below 65% of the rated value — indicating LED failure — the system triggers a "light fail" alarm via an NMS relay output. It also monitors for power supply failure and raises a separate "power fail" alarm. These alarms can be connected to any Network Management System for remote monitoring.

The dual voltage variant accepts both 48V DC (±10%) and 230V AC (180–250V) input. This allows the aviation light to operate from the tower's AC mains supply, with DC backup capability. Fault monitoring covers both supply conditions. Separate models are also available for 24V DC or single-voltage configurations.

The fault monitoring panel provides relay-based NO/NC (Normally Open / Normally Closed) NMS output contacts for both light fail and power fail conditions. These contacts integrate with standard telecom Network Management Systems, BMS platforms, or custom alarm monitoring systems, enabling centralised remote alerting without manual site visits.

Related Products

Medium Intensity Type B — 48V DC

Standard medium intensity light without fault panel. Models SSSL-MB-D / SSSL-MB-24D.
Medium Intensity Type B — 230V AC

AC mains powered variant. Model SSSL-MB-A. >2000 Cd, IP65.
Low Intensity — Standby with Fault

Low intensity twin dome with automatic standby switchover when primary fails.

Request a Quote for Medium Intensity Aviation Light with Fault Monitoring

Ensure compliance and proactive fault detection for your tower aviation lighting. Contact our team for product details and pricing.

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Note: Due to continuous improvements, Spaceage Security Systems Ltd. reserves the right to modify specifications without prior notice.