The TCF-90 is a compact sized, high-speed, RS-232 to optical fiber converter that extends RS-232 transmission from 15 meters to 5 km (TCF-90-M, multi-mode) or 40 km (TCF-90-S, single-mode), without using external power. The TCF-90 is designed to get power from the attached serial port. A pair of TCF-90 converters can be used to connect two RS-232 serial devices to each other in full duplex transmission mode using optical fiber. Moreover, the TCF-90 isolates the devices from dangerous increases in ground potential, ground loops, and electrical EMI/RFI noise. This greatly reduces RF radiation and susceptibility to electromagnetic radiation to enhance data security.
Port-powered RS-232 to Optical Fiber Converter
Connecting RS-232 devices to the TCF-90 is easy. The ST-type optical fiber connector is designed especially for data communication applications that transmit data between or within buildings. The TCF-90 can be used for industrial applications and for applications that require secure data transfer.
Patented Port
Power Indicator LED
The TCF-90
has a built-in Port
Power Indicator LED
that can be used to
determine if the TCF-90
is receiving enough
power. The LED is used
primarily to determine
if the
attached serial port
can provide
enough power to operate
the TCF-90, which eliminates
the need to use a multimeter.
Simply
connect the TCF-90
to the target RS-232
port, and then turn
the SW4 switch to Test mode.
If the LED lights up,
the TCF-90 is receiving
enough power. If the
LED does NOT light
up, attach the external
power cord to the TCF-90. |
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Optional External Power Source
In most circumstances, the TCF-90 can get enough
power from the attached serial device, in which case
it does not need to connect to an external power
source. If the attached serial device cannot supply
enough power, you can use an external USB power cord (to
connect to a PC's USB port) or DC power adaptor supply with
applications for which the handshake lines are not available,
both the
RTS/DTR signals are set to OFF, or the interface
chip of the attached serial port provides less power than
required.
More info >>
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