Comnet CNFE1004SAC1B-M Ethernet-to-Optical Media Converter

Overview

The CNFE1004SAC1B-M is a compact 10/100 Mbps electrical-to-optical media converter built for surveillance backbone runs where fiber isolation is mandatory. It accepts standard RJ45 Ethernet and converts to 100 Mbps optical output via SC connector—the right choice when you need to bridge camera networks across long distances or break ground loops without running additional copper. The unit handles multimode fiber up to 3 km (2 mi) or singlemode up to 20 km (12 mi), meaning a single converter can span warehouse buildings or campus perimeters on one strand. Small form factor (3.3 × 2.5 × 1.1 in) fits DIN rail or wall-mount installations where space is tight.

Compatibility

The CNFE1004SAC1B-M pairs with any network infrastructure (switches, NVRs, edge devices, PTZ controllers) that outputs standard 10/100 BASE-T/TX Ethernet. Auto-negotiation handles both 10 Mbps and 100 Mbps full or half duplex without manual configuration. Supports both multimode (MM) and singlemode (SM) fiber in a single-fiber or dual-fiber design, so deployment flexibility is inherent—specify the fiber type and connector termination when ordering. Works transparently with major data encoding schemes (ONVIF, proprietary protocols, audio streams) since the converter operates at Layer 1 and imposes no protocol restrictions.

Installation Notes

AC power (22–27 VAC) or DC (8–24 VDC) input; consumption is only 3W, so a small wall supply or PoE injector can feed multiple converters. Voltage transient protection on all power and signal lines protects against surges common in long outdoor runs. Operating temperature range of −40°C to +75°C covers outdoor cabinets and unheated sheds; humidity to 95% non-condensing prevents condensation failure in high-moisture enclosures. No optical or electrical field adjustments required—plug and play once fiber is terminated and connectorized at both ends. MTBF >100,000 hours signals industrial-grade reliability for 24/7 surveillance duty.