The thinklogical RS-232/422 fiber extender supports two remote serial devices up to 1,000 meters using multi-mode fiber optics and up to 40 km using single-mode fiber optics. Each port can be configured individually, as either RS-232 or RS-422. Additionally, the RS-232 port can be configured as DTE or DCE, while the RS-422 can be configured as either master or slave.

Full duplex communication is supported in both modes, with rates up to 115 kbp/s in RS-422 mode and 230 kbp/s in RS-232 mode. In addition, the RS-422 extension follows SMPTE 207M protocol with 1 TX and RX pair for controlling devices such as tape decks, system controllers, etc. In the RS-232 mode, TX/RX, DTR/DSR, RTS/CTS and CD are all extended. In addition, RJ45 to DB9 Adapters ADP-000019-R and ADP-000025-R are provided to interface with RS-232 devices and ADP-000031-R is provided to interface with RS-422 devices.