The ANPA AP-3101AB is a Fast Ethernet single-fiber media converter built for long-haul links. It translates a 10/100Mbps RJ45 copper connection onto a single-mode fiber strand using single-fiber WDM (BiDi) optics, reaching up to 20 kilometers as a matched A/B pair — far beyond the 3km of entry-level converters and the 100-meter copper limit. With plug-and-play auto-negotiation, SC connectivity and complete EMI immunity, the AP-3101AB connects distant buildings, remote surveillance sites and cross-campus nodes reliably and economically. Request a quote for long-reach pair pricing and OEM/ODM options.
ANPA sells factory-direct with wholesale and OEM/ODM terms. Pricing is quoted per project — contact our sales team for volume discounts and lead times.
Product Specifications
| Model | AP-3101AB |
|---|---|
| Category | Fiber Optical Transceiver |
| Ports Configuration | 2 (1 Fiber + 1 RJ45) |
| Transmission Rate | 10/100/1000Mbps |
| PoE Standard | N/A |
| Power Budget | N/A |
| Key Features | Single Fiber, Single-mode |
| MOQ | 2 pairs |
Product Overview
Where short-range converters stop at a few kilometers, the AP-3101AB uses long-haul single-mode optics to sustain Fast Ethernet links up to 20km. Its single RJ45 port and single SC fiber port make deployment straightforward: install one unit at each end of the fiber run as a complementary A/B pair, connect copper and fiber, and the link establishes automatically with no software or configuration.
Single-fiber WDM is the key economy here. Bidirectional traffic rides two wavelengths on one strand, so long cable runs between distant sites need only a single fiber — halving material and installation cost versus dual-fiber solutions while single-mode physics keep signal loss low over the full 20km. Auto-negotiation and auto-MDI/MDIX handle copper side setup, and link/activity LEDs report power and optical link status at a glance.
Fiber’s advantages compound over long distances. The AP-3101AB is immune to electromagnetic interference along entire runs that may parallel power lines or cross industrial zones; it does not conduct lightning surges, protecting equipment at both ends; and it electrically isolates sites with independent grounding, eliminating ground loops. The rugged metal housing suits equipment rooms and outdoor cabinets. Every unit is CE, FCC and RoHS certified and leaves ANPA’s Chaozhou factory only after the 9-step QC process including optical power and link-stability testing on 100% of production.
Application Scenarios
Long-Haul Building & Campus Links
Connect facilities up to 20km apart — headquarters to a branch, a school campus to a dormitory village, or a factory to a warehouse — over a single fiber strand with full electrical isolation.
Remote Surveillance Backhaul
Carry video from distant perimeter, toll-plaza, wind-farm or border cameras back to the control room; fiber avoids the repeaters and signal degradation that copper and wireless suffer at range.
Utilities & Infrastructure
Substations, water plants and transport infrastructure use fiber to link field equipment across electrically harsh, lightning-prone areas where copper links would be unsafe and unreliable.
ISP & Last-Mile Connections
Service providers and property networks use AP-3101AB pairs to deliver 10/100M connectivity to distant tenants or buildings over single-mode fiber already installed in the ground.
Why Choose ANPA
ANPA has manufactured PoE and fiber networking equipment since 2006 — 20 years of production experience. Every switch, converter and accessory is built in our single 15,000 m² facility in Chaozhou, Guangdong (with a dedicated R&D center in Shenzhen), across 8 production lines and 16 sets of assembly and test equipment. Our 3 R&D engineers and 7 QA/QC specialists enforce a rigorous 9-step quality control process with 100% inspection, full-load burn-in and CE, FCC and RoHS certification on every batch.
- Long-reach single-mode single-fiber WDM — up to 20km on one strand as an A/B pair.
- Fast Ethernet 10/100M with plug-and-play auto-negotiation — no configuration needed.
- Full EMI and lightning immunity plus electrical isolation for safe long-haul links.
- Built in ANPA’s 15,000 m² Chaozhou factory with 100% optical QC; CE/FCC/RoHS.
Compatible & Related Products
For shorter links the 3km AP-3102AB offers better value; for gigabit speed at 20km use the AP-3201AB, and for dual-fiber gigabit the aluminum-housed AP-3202AB. Multiple local devices can be aggregated with the 4-port AP-3114AB or 8-port AP-3118AB, and interchangeable optics are available on the AP-SFP-MC100.
Frequently Asked Questions
1. Is the AP-3101AB single-fiber or dual-fiber?
It is a single-fiber (WDM/BiDi) converter: transmit and receive use two wavelengths on one fiber strand, shipped as a matched A/B pair. This halves fiber usage on long runs where cable quantity directly affects cost.
2. What speed and distance does it support?
Fast Ethernet 10/100Mbps over single-mode fiber, with a standard optical budget supporting up to 20 kilometers. For gigabit at the same distance, choose the AP-3201AB; for shorter links the 3km AP-3102AB is the economical option.
3. Do I need a converter at both ends?
For a copper-to-copper link yes — an A unit at one end and a B unit at the other. If one side has a switch with a native fiber or SFP port, a single converter at the copper end may suffice; confirm your topology with ANPA when ordering.
4. Can the 20km distance be extended further?
With appropriate optics fiber links can span beyond 20km; ANPA also offers SFP-based converters (AP-SFP-MC / AP-SFP-MC100) that accept interchangeable modules for various distances. Tell us your exact route length for a recommendation.
5. Why use fiber instead of copper for long links?
Copper Ethernet is limited to 100 meters and is susceptible to EMI and lightning. Fiber reaches kilometers, is electromagnetically immunity, and electrically isolates buildings — making it the standard for inter-building and long-haul connections.
6. Is any configuration required?
No. The AP-3101AB is plug-and-play: auto-negotiation and auto-MDI/MDIX configure the copper side automatically, and the optical link activates once the pair is connected. LEDs indicate power and link status for quick verification.
7. What MOQ and customization are available?
MOQ is 2 pairs, and ANPA provides OEM/ODM services including custom branding, pair packaging, firmware and documentation. Request a quote for volume discounts and production lead times.
Get a Quote from the Manufacturer
Ready to specify the AP-3101AB for your project? ANPA ships factory-direct worldwide with flexible MOQs, OEM/ODM customization and CE/FCC/RoHS documentation. Tell us your port count, fiber distance or power requirements and our team will reply with pricing and lead time.
ANPA sells factory-direct with wholesale and OEM/ODM terms. Pricing is quoted per project — contact our sales team for volume discounts and lead times.