120dB noise rejection, 40km range. Steel mill: 99.8% stability. Auto plant: 40% cost ↓." />
Fiber optic repeaters ensure stable, reliable long-distance signal transmission by acting as "signal translators and amplifiers":
1️⃣ Signal Conversion: Precisely convert electrical signals → optical signals for fiber transmission.
2️⃣ Long-Distance Transport: Near-zero-loss optical transmission (up to 10-20 km).
3️⃣ Signal Restoration: Reconvert optical → electrical signals at endpoints to drive devices.
Flexible Deployment Modes:
✅ Point-to-Point: Connect PLCs/VFDs/sensors beyond distance limits.
✅ Tandem Networking: Extend coverage via multiple repeaters.
✅ EMI-Shielded Zones: Install near VFD/HV equipment.
Harsh Environments: High humidity, condensation, EMI, and high voltage demand:
EMI immunity ️
Water/dust resistance
Disaster resilience ️
Analog Signal Challenges (4-20mA/0-10V):
±0.1% Linearity: True-to-source data fidelity.
EMI Isolation: Fiber eliminates noise.
Multi-Signal Support: Current/voltage/thermocouples.
Zero-Configuration: Plug-and-play operation.

3. Comark Solution: CJ-AFx1/AFx2 Series

▲ Bidirectional analog↔fiber conversion (±0.1% accuracy)
▲ 40km max range | ≥1500V isolation
▲ -40°C~85°C operation | Metal housing (heat/surge-resistant)
▲ >120dB common-mode rejection | IP40 + anti-corrosion coating
▲ Zero-config deployment
4.Concise Client Feedback Section:
Real-world validation: Fiber optic repeaters drive efficient production through signal stability.
✅Steel Plant:
Extended sensor signals 500m → 99.8% stability, eliminated furnace runaway risks.
✅Power Control Center:
±0.1% accuracy in EMI-heavy environments → precise command delivery.
✅Auto Factory:
Replaced heavy cables → 40% wiring cost ↓, 60% maintenance time ↓, near-zero failures.

Fiber optic repeaters are the cornerstone of industrial comms—defeating distance and interference to maintain production vitality. When signals flicker or data drifts, Comark delivers reliability engineered into every circuit.
Contact Comark for high-quality industrial communication facilities and comprehensively reliable solutions.