FibroLAN's FC42 is a stand alone device allowing the transmission of RS485 or RS422signals over a fibre line at distances of up to 2 km using multimode fibre cable andup to 100km with single mode fibre cables. A typical installation uses a set of two FC42 units connected to each other by a fibrecable while their copper ports connected to the serial ports of the users devices asdescribed in the attached picture. FibroLAN's FC42 line extender supports RS485 4 wire full duplex operation.Switch selecteable terminations allow installation at the edge of the bus. The device utilizes a unique design that is transparent to the types of data beingtransmitted thus supporting NRZ and NRZI protocols. The line extender can beinstalled at any segment of an RS485 network as well as in between networksegments.FC42 devices must be deployed in pairs. | 
