Moxa TCC-80 RS-232 - RS-422/485 Converter TCC 80 User Manual
Product codes
TCC 80
Industrial Networking Solutions
12-11
i n f o @ m o x a . c o m
w w w. m o x a . c o m
Media Converters
>
TCC-80
12
Port-powered RS-232 to RS-422/485 converter
External power source supported but not required
›
Compact size
›
Converts RS-422, and both 2-wire and 4-wire RS-485
›
RS-485 automatic data direction control
›
Automatic baudrate detection
›
15 KV serial ESD protection
›
Built-in 120-ohm termination resistors
›
The TCC-80 provides complete signal conversion between RS-232 and
RS-422/485, without requiring an external power source. It supports
both half duplex 2-wire RS-485 and full duplex 4-wire RS-422/485,
either of which can be converted between RS-232’s TxD and RxD lines.
In addition, the TCC-80’s 15 KV ESD protection guards against damage
from electrostatic discharge.
RS-422/485, without requiring an external power source. It supports
both half duplex 2-wire RS-485 and full duplex 4-wire RS-422/485,
either of which can be converted between RS-232’s TxD and RxD lines.
In addition, the TCC-80’s 15 KV ESD protection guards against damage
from electrostatic discharge.
The RS-232 port of the TCC-80 is a DB9 female socket that can
connect directly to the host PC, with power drawn from the TxD,
RTS, or DTR line. Regardless of whether the signal is high or low,
the TCC-80 can obtain enough power from the data/handshake line.
However, external power can be used if the handshake line is not
available, if the serial cable is too long, or if the RS-232 device is a low
power device. For external power, a 5 to 12 VDC power supply can be
connected using an adaptor or a USB power cord.
connect directly to the host PC, with power drawn from the TxD,
RTS, or DTR line. Regardless of whether the signal is high or low,
the TCC-80 can obtain enough power from the data/handshake line.
However, external power can be used if the handshake line is not
available, if the serial cable is too long, or if the RS-232 device is a low
power device. For external power, a 5 to 12 VDC power supply can be
connected using an adaptor or a USB power cord.
Termination is a critical requirement for port-powered devices such as
the TCC-80. In most circumstances, termination resistors are used if
the RS-422/485 cable is longer than 100 m. Regardless of how much
the data signal is dissipated, the termination resistors absorb more
the TCC-80. In most circumstances, termination resistors are used if
the RS-422/485 cable is longer than 100 m. Regardless of how much
the data signal is dissipated, the termination resistors absorb more
Introduction
Automatic data direction control is also provided for RS-485, in
which the RS-485 driver is enabled automatically when the circuitry
senses the TxD output from the RS-232 signal. This means that no
programming effort is required to control the transmission direction of
the RS-485 signal.
which the RS-485 driver is enabled automatically when the circuitry
senses the TxD output from the RS-232 signal. This means that no
programming effort is required to control the transmission direction of
the RS-485 signal.
Port Power over RS-232
Optional External Power
External Power Adaptor
USB Power
than 75 mW of power. In other words, if long distance RS-422/485
transmission or termination is required, then an external USB power
cord or DC power supply should be used.
transmission or termination is required, then an external USB power
cord or DC power supply should be used.
TCC-80
TCC-100: RS-232 to RS-422/485 converter
TCC-100I: RS-232 to RS-422 converter with optical isolation
TCC-100I: RS-232 to RS-422 converter with optical isolation
TxD
RTS
DTR
Long Range/
Teminated
RS-422/485
Connection
´ xÊ6ÊÌÊ´£ÓÊ6
Ê
-iÀ>Ê-}>
,/-
,-{ÓÓÉ{nx
iÛViÃ
/,
/8
USB Port Power Cord
TxD
RTS
DTR
Long Range/
Teminated
RS-422/485
Connection
The certifi cation logos shown here apply to some or all of the products in this
section. Please see the Specifi cations section or Moxa’s website for details.