Series Multi-drop Optic Fibres 1.RS232 115.2K 2.RS485 0-12M 3.DB9-F&Pluggable Screw Terminal interface ... Series Multi-drop Optic FibresSeries Converter/Repeater RS232/RS485 from/to Fiber Optic, Converter/Repeater Fiber Optic to RS232 to RS485, Optic fiber devices,RS-485 Repeater ... ;RS232 support for RXD, TXD, GND 3-line approach to work;RS422 support for RX-, RX +, TX-, TX + full-duplex mode;RS485 ...