Industrial Bidirectional Contact Closure Optical Extender

• High-capacity 16-channel bidirectional contact signal transmission, cutting fiber cabling costs for multi-node monitoring projects
• All-in-one lightning surge suppression design, safeguards internal circuits against outdoor thunderstorm and grid surge damage
• High 30dB optical link loss margin, guarantees consistent signal quality even with aged or long-distance fiber links
• Optical isolation design blocks EMI, RFI crosstalk and dangerous ground loop currents between front and rear equipment
• Swappable SFP optical interface, allows on-site replacement of fiber modules without replacing the whole host device
• Easy-to-wire Phoenix terminal blocks, compatible with passive switches, alarm contacts, relay outputs and multiple serial signal standards
• Versatile DC 12–52V wide voltage input, fits power supply environments of factories, road stations and power stations
• Rugged industrial temperature adaptation, working reliably from -40℃ freezing cold to 75℃ high-temperature workshops
• DIN rail snap-on installation, compact standalone casing that fits neatly inside standard control cabinets
• Lightweight RoHS-certified hardware, low heat generation for non-stop round-the-clock field operation

Technical Data

Application

• Express way security protection and toll station system
• City traffic monitoring system
• Building and campus monitoring system
• Industrial monitoring (airport, chemical plant, railway, etc.)
• Electronic power oil field, TV station program broadcasting
• Gymnasium (live video and audio transmission)

QC Framework

1.Standards
Comply with ISO9001, CE, RoHS, IEC 60825
Meet MSA standards (SFP/QSFP) and interoperability requirements

2.QC Process
Incoming Inspection: Laser chips, photodiodes, ICs, housing precision
Assembly Control: Optical alignment, bonding, fiber coupling accuracy
Calibration: Tx power, Rx sensitivity, bias current tuning
Functional Testing: BER, eye diagram, DDM monitoring, link distance
Aging Test: High-temp continuous operation (24–72h)
Final Check: EEPROM data, compatibility, labeling

3.Test Equipment
BERT (Bit Error Rate Tester)
Optical power meter & light source
Eye diagram analyzer
Temperature-controlled aging racks

4.System
Calibration records + serial number traceability
Compatibility database (switch/router vendors)

5.Continuous Improvement
Yield rate monitoring
Optical performance drift analysis
Supplier quality optimization

Outcome: High compatibility, stable optical performance, low link failure rate