TP-Link Omada 10/100Mbps WDM Media Converter

TP-Link Omada 10/100Mbps WDM Media Converter (MC111CS) - 5 Years Local Warranty

The MC111CS carries a full 10/100Mbps Ethernet link over a single strand of single-mode fibre, up to 20 km, by transmitting at 1550 nm and receiving at 1310 nm. Where dual-fibre converters need two strands, WDM halves the fibre count - which is what makes it the answer when the duct already installed has only one core free.

One Fibre Strand Instead of Two

Wavelength Division Multiplexing sends and receives on different optical wavelengths down the same glass, so a link that would normally consume a pair of cores runs on one. That matters in every building where the backbone was laid years ago and the spare cores have long since been used up: a WDM pair doubles the number of links an existing duct can carry without anyone pulling new fibre through a live riser, which is usually the expensive and disruptive part of the job.

1550 nm Transmit, 1310 nm Receive - Pair It Correctly

The MC111CS transmits at 1550 nm and receives at 1310 nm. Because of that, it cannot be used at both ends of a link: the far end needs a counterpart converter with the wavelengths reversed, which in TP-Link's range is the MC112CS. Ordering two MC111CS units for one run is the single most common mistake with WDM converters, so specify them in matched pairs. SourceIT stocks both halves and can quote them together for a project.

20 km on Single-Mode Fibre

TP-Link publishes a fibre reach of up to 20 km, so the converter comfortably covers the distances that actually arise on Singapore sites - a second block, a gatehouse, a car park, a plant room across a compound, a tenant unit at the far end of an industrial estate. The RJ45 side is a 10/100M port with Auto MDI/MDIX, so the copper end is plug-and-play and handles cable polarity in hardware. The converter is transparent to everything on either side of the link.

Fibre Isolation Protects Equipment Between Buildings

Fibre carries no current. That gives immunity to the electromagnetic interference thrown off by motors, lifts and heavy power runs, and it electrically isolates the two buildings - removing the ground potential difference that makes running copper between separate structures a real risk to switch ports during a storm. On many inter-building links, that isolation is the actual reason to convert to fibre; the distance is secondary.

Compact, Low-Power and Five Years Local Warranty

The unit measures 94.5 x 73.0 x 27.0 mm and draws a maximum of 2.49W from an external adapter, with PWR and Link/Act LEDs for status at a glance. TP-Link lists half and full duplex transfer mode on the fibre port, and certifies the converter to FCC, CE and RoHS. Omada accessories including media converters fall under TP-Link's five-year replacement warranty, and SourceIT supplies every unit with local Singapore warranty and a GST invoice.

Ideal For

Singapore campuses, industrial estates, schools and condominium developments extending Ethernet between buildings where only a single fibre strand is available in the existing duct. Supplied by SourceIT with local Singapore warranty, GST invoice and project pricing on request.