Comnet 2TX TO 1 FX 100Mbps Media Converter (A) SC Connector sm 1 fiber - CNFE2004S1A

Comnet CNFE2004S1A 2TX to 1FX Media Converter

The CNFE2004S1A consolidates two copper Ethernet lines into a single single-mode fiber run—a practical solution when you need to extend surveillance camera or network feeds beyond the 100-meter copper limit without running parallel fiber strands. Two 10/100 BASE-T electrical ports feed into one 100 BASE-FX optical output, allowing you to multiplex signals or deploy split fiber runs back to a head-end switch or NVR.

Overview

This is a hardened media converter rated to NEMA TS-1/TS-2 traffic and industrial standards, covering -40°C to +75°C operation—relevant if you're installing in roadside cabinets, warehouses, or unheated shelters. The SC connector variant (CNFE2004S1A) accepts standard single-mode patch cords; the 20 km (12 mi) reach on single-mode fiber eliminates repeaters across most campus or inter-facility links. Auto-negotiation on both copper ports handles 10 or 100 Mbps, full or half duplex, without manual configuration.

Compatibility

Any surveillance system or network device running 10/100 Mbps Ethernet connects directly to the copper ports—no special drivers or firmware required. ONVIF-compliant IP cameras, NVRs, POE switches, and standard enterprise network equipment pair without integration overhead. The PoE models (30W or 60W variants) inject power back through the copper lines, supporting 802.3at standard PoE+ devices on both ports simultaneously. Works in fiber legs between primary and secondary NVR locations, camera aggregation points, and backbone runs where single-mode fiber is already trenched.

Installation Notes

Wide input voltage range (8–24 VDC standard models, 48–56 VDC for PoE units) accommodates backup generators and variable DC supplies common in remote surveillance installs. Power consumption is 3W idle—negligible for solar/battery backup budgets. Mux and Demux DIP switch options allow one fiber to carry two logical converter streams (useful when you need port isolation without redundant fiber). Link Fault Pass-Through automatically triggers the optical port to signal a downed copper connection upstream, critical for failover logic in larger deployments. Compact form factor (6.1 x 5.3 x 1.1 inches for standard, 4.1 x 3.7 x 1.1 inches for mini variants) fits DIN rail, wall mount, or cabinet edge install. Shipping weight under 2 lbs. MTBF >100,000 hours.