Introduction
The optical cable intelligent early warning and monitoring system is an innovative optical cable line management and monitoring system.
Integrating various advanced technologies such as OTDR/WDM/OPM/OLP/OSW/GIS, the system organically combines functions such as early warning and monitoring, alarm, fault analysis and positioning, line protection, and fiber core quality management, providing an innovative and efficient solution for the operation and maintenance of optical cable lines.
1. Project background and demand analysis
1.1 Core pain points of optical cable operation and maintenance
1.1.1 High operational risk
Frequent interruptions : Affected by natural disasters (earthquakes/floods accounting for 52%) and construction damage, the annual failure rate > 3 times/100 kilometers
Difficult positioning : Traditional OTDRs require manual operation, with an average positioning time of 120 minutes and an error of ± 200 meters
Dumb resources are out of control : more than 75% of the idle fiber cores in the whole network have no effective monitoring methods.
1.1.2 Defects of traditional OAM
Core requirements
2. System solution design
2.1 System architecture
2.2 Key technical indicators
2.2.1 Monitoring performance
OTDR module
Dynamic range: ≥40dB at 1625 nm
Test accuracy: ±1m + 0.005% × distance
Maximum monitoring distance: 250km (G.652D)
2.2.2 Protection system
3. Realization of core functions
3.1 Intelligent monitoring mode
3.1.1 Idle fiber core management
Monitoring plan: periodic rotation
Dual-fiber detection: real-time comparison of dual spare fiber cores of
the same optical cable, abnormal triggering of OTDR test
3.1.2 Online Business Protection
Passive WDM technology realizes service optical separation monitoring
OLP automatic switchover process:
Optical power drop → Threshold judgment (-3dB~-30dB can be set) → Switching execution (<50ms) → OTDR positioning
4. Typical application cases
4.1 Power system in Aba Prefecture, Sichuan
Deployment configuration:
Equipment: 8 OMP4000 hosts + 32 OSW boards
Monitoring range: 19 backbone optical cables, total length 386km
Monitoring mode: Idle fiber core cycle rotation (6 hours/time)
Implementation effect
5. Implementation and service system
5.1 Deployment Process title
title project milestones
date format YYYY-MM-DD
Demand confirmation: 2023-08-01, 7d
Scheme design: 2023-08-08, 14d
Device deployment: 2023-08-22, 21d
System debugging: 2023-09-12, 14d
Acceptance training: 2023-09-26, 7d
5.2 Service Commitment
7×24 hours remote technical support
Spare parts library for key components (response time < 4 hours)
Annual fiber health assessment report
