43
W&T
Digital-I/O Extender Sets
Subject to error and alteration
Glass Fiber Interface
Common ST connectors are used for connecting the glass
fiber optic cable. A version with SMA connectors is also
available as a special on request.
The light used for data transmission has a wavelength of
820 nm. Common 50/125 µm or 62,5/125 µm multimode
duplex glass fiber optic cable is used, which thanks to its
wide use in networking is easily available and inexpensive.
This means that even existing glass fiber optic sections which
are intended for use in networks can be used for sending
digital signals. Depending on the attenuation factor of the
glass fiber optic cable used, data transmission over distances
of up to 3800 meters is possible.
Digital-I/O Port
The Digital-I/O-Port is configured as a plug-in 3.5mm
terminal block so that the connected in- and outputs can be
disconnected from the signal converter at any time without
having to unscrew anything.
All digital inputs use overvoltage-rated components to protect
against transients which exceed the permissible input voltage
of the inputs.
Driver chips are used for the digital outputs which provide
integrated protection against short circuit, overload and
thermal destruction.
