The FTR fiber-optic converter is a small adapter
plug that provides optically-isolated bi-directional
communication between two standard RS-232 serial
ports via fiber optic cables. The device has a standard
DB25 pin male connector on one end, and accepts
HP VersaLink type snap-in fiber optic cables on
the other end. The fiber optic cable length may
be up to 1 kilometer.
This device is ideal for establishing noise-free
data transmission between computers and peripherals,
avoiding ground loops and errors caused by pick-up
of transients and interference radiated from industrial
equipment. The device also allows data transmission
over high voltage gradients often found on particle
beam accelerator lines, and anywhere else that optical
isolation is required.
While actual hardware handshaking is not supported,
the handshaking lines can be forced with the use
of internal jumpers. If actual handshaking is desired
the software commmands XON and XOFF must be supported
and used by both the computers and peripherals.
be provided by using an external plug pack, or by
the RS-232 serial interface (if supported by the
computers or peripheral device).
Example of connecting two serial devices using two
FTR fiber optic converters.