User`s guide

2
Overview
Many important devices used in today’s industrial environment are still
designed for use with an RS-232 interface. The reason is due in part to
tradition, and in part to convenience. RS-232 hardware is relatively easy
to design, and the device can be readily connected to most PCs. The
drawback is that RS-232 is a point-to-point interface, and it imposes a
distance limitation of only 15 meters between the device and the
computer.
To overcome these limitations, many users employ RS-232 to
RS-422/485 converters, allowing RS-232 devices to connect to an
industrial RS-422 or RS-485 network and transmit data over distances up
to 1.2 km. The RS-422/485 standards overcome the distance limitation
by using a differential signal for transmitting data and control signals.
Transmission distance and multi-drop connections are not the only issues
of importance for industrial applications. In addition, housing, wiring,
power supply, and over-surge protection are also serious concerns.
The TCC-100I and TCC-100I-T models come with isolation protection for
users who need an industrial grade interface conversion product to
extend RS-232 transmission distance and increase networking capability.
The superior industrial application design, which includes DIN-Rail
mounting, terminal block wiring, external terminal block power, and
optical isolation for system protection, makes the TCC-100 series suitable
for use in critical industrial environments. Your RS-232 devices can be
used as part of an industrial RS-422/485 network, but without any
hardware or software changes.