The FIB1-SERIAL-SC2F provides a fiber converter solution to extend RS-232 or RS-485/422 transmission distance up to 2km over multimode fiber. Unit is also available with WDM optical modules for operation on single strand fiber optic circuits. The converter is equipped with multiple interface circuits, for connection to RS-232, RS-423, or RS-485/422 (2 or 4 wire). The FIB-SERIAL secures data transmission over EMI resistant fiber at speeds up to 256kbps for RS-232 and 1,024Kbps for RS-485/422 interfaces. When the FIB1-Serial is linked to the FRM301 with FIB1-SERIAL card, it allows network engineers to get greater functionality through advanced SNMP features. The network administrator can manage any converter module from anywhere on the network, detect any link loss and maintain each loop.