The IMC-21 series provides a cost-effective way to convert 10Mbps and 100Mbps Ethernet signals from copper to fibre and vice-versa. IMC-21 are low cost, plastic units suitable for temporary applications or for use in clean, temperature controlled environments. If a hardened wide temperature solution is required, see the Garrettcom range of products in the Industrial Ethernet section or the IMC-101 series, also in this range.