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4 POTS RJ11 Telephone over Fiber Converter, Gigabit Ethernet, FXS FXO Kit
✅ In stock
⭐ Lowest price we've tracked
F
Grade
Analysis Confidence
63%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 31, 2026 7:07 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
AD-net
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓FOUR ANALOG PHONE LINES AND ONE GIGABIT ETHERNET PORT OVER A SINGLE FIBER PAIR - A matched FXS/FXO set carries 4 independent RJ11 POTS lines plus a 10/100/1000 Mbps auto-sensing RJ45 Ethernet port over one SC duplex fiber run. Voice is carried by PCM codec at 8 kHz bandwidth with transparent in-band signalling, so caller ID and fax pass end to end.
✓Universal for Both Fiber Types: Same media converter (extender) supports Multimode fiber for a distance up to 1 km (0.62 milesDIRECT ANALOG TRANSPORT - NOT VoIP, NO SIP, NO ATA - The voice path is not packetised into a VoIP protocol, so there is no registration, no provider account, no codec negotiation and no added latency. Fax and other in-band legacy signalling work because the signal is carried rather than translated. ) and Single mode fiber for a distance up to 20 km (11.42 miles), wavelength 1300/1310 nm
✓DIELECTRIC PATH - NO COPPER BETWEEN BUILDINGS - Glass fiber carries no current and provides no path for a lightning-induced surge. A copper phone pair run outdoors between structures is an antenna; a fiber run is not. This is the usual reason the product is specified for house-to-shop, main-building-to-gatehouse, well-pump, barn and remote-alarm links.
✓FXS AND FXO ENDS ARE NOT INTERCHANGEABLE - The FXO unit connects to the central-office or PABX side; the FXS unit presents line voltage to the handsets or fax. Establish which end is which before installation. FXS ringing is 75 V at 25 Hz; FXO input impedance is 600 ohm off-hook, return loss 40 dB, ring detection 35 V over 17-60 Hz.
✓NOTHING TO CONFIGURE - No drivers, software, dip switches or IP addressing. Connect RJ11 to the phones, RJ45 to the network, fiber between the units, apply power. The Ethernet port auto-senses 10, 100 or 1000 Mbps.
✓IN THE BOX - Two units (one FXS, one FXO), two AC power adapters and the manual. No fiber patch lead is supplied - specify SC duplex UPC/PC to match your plant. Universal AC 90-260V input, under 5 W, -10 to 60 C operating, -35 to 70 C storage, 105 x 130 x 30 mm (4.13 x 5.12 x 1.18 in) per unit.
⚙️ Specifications
Brand
ADnet
Connector Type
RJ11
Cable Type
Fiber Optic
Compatible Devices
PC
Special Feature
Magnetic
Other Special Features of the Product
Magnetic
Compatible Phone Models
No Compatible Phone Models
Ethernet Cable Category
Cat 8
Connector Gender
Male-to-Female
Data Transfer Rate
1 gigabits_per_second
Number of Pins
26