Olencom`s FM-16 Fiber Optical Mux product family provides ideal solutions for building fiber-based E1 networks. As one of this family, model FM-16-9 can multiplex up to 16 E1 signals for transmission over an optical fiber, resulting in longer reach without repeaters and superior performance compared to copper media.
The FM-16-9 also supports an optional 10 /100 BaseT port, an optional Quad RS232 async ports to 64Kbps, and Quad V.35.

FM-4 is an optical multiplexer based on WDM (Wavelength Division Multiplexing) technology. It provides transmission of four E1 and one Fast Ethernet streams through single pair of optical fibers.
FM-4 takes up to four E1 2.048 Mbps interfaces and one plug-in card for Fast Ethernet 100 Mbps interface.
On optical transmission line, the FM-4 8MB provides different types of optical interfaces for different distances — up to 20/40/60/80 km.

Optical modem FM-E1 provides transmission of E1 stream through different types of optical fibers for distance up to 80 km.

E1 interface, complying with G.703 requirements, allows 2048 Kbps connection for customer’s equipment.

FM-E1 provides different types of optical interfaces for single mode and multi mode fibers.
FM-E1 is comes in two models: stand-alone device with AC or DC power supply or plug-in card (RM-E1) for the 19" or 23" rack-mounted chassis with power protection.