Moxa Technologies Computer Hardware TCC 80I User Manual

Isolated High-Speed Serial Port Powered  
Serial Media Conversion Solution  
RS-422/485 Connection  
USB Power Cord  
Package Checklist  
Transio TCC-80I  
First High-speed, Isolated, Self-powered  
RS-232 to RS-422, 2-wire/4-wire, RS-485  
Bi-directional Converter with 2.5 KV  
Isolation and 15 KV ESD Surge  
Protection.  
The RS-422/485 port to terminal block connector is  
shown below. Note that some RS-422/485 devices  
are labeled “+” and “-” and some are labeled “B”  
and “A”. In other words, Data (B) is equivalent to  
Data (+) and Data (A) is equivalent to Data(-).  
TCC-80I  
USB Power Cord  
User’s Manual  
If additional external power is required, TCC-80I  
can be connected to a standard 5 to 12 VDC power  
supply or the USB power cord CBL-USBAP-50.  
Applications  
RS-422/4w RS-485  
2w RS-485  
Multipoint data acquisition  
Factory automation  
Remote serial device control  
Building security automation  
Critical industrial control  
Overview  
T+  
T.  
R+/D+  
R./D.  
GND  
R+  
R.  
T+  
T.  
GND  
T+  
T.  
R+/D+  
R./D.  
GND  
The TCC-80I is the world’s first high-speed,  
isolated, self-powered converter. It is powered via  
the host’s RS-232 port and provides complete signal  
conversion between RS-232 and RS-422/485  
devices. The TCC-80I coverts back and forth  
between RS-232’s TxD and RxD lines to either half  
duplex 2-wire RS-485 or the balanced signal of full  
duplex 4-wire RS-422/485. In addition, the  
TCC-80I’s built-in 15 KV ESD surge protector  
provides the output ports with comprehensive  
protection against surges and spikes. Perhaps the  
most important feature is the 2.5 KV isolation  
designed to prevent ground loop currents, reduce  
damage caused by data loss, and prevent damage to  
the communication interfaces. The TCC-80I is also  
designed to provide RS-485 auto data direction  
control, in which the RS-485 driver is enabled  
automatically when the circuitry senses the TxD  
output from the RS-232 signal. Programming effort  
is not required to control the transmission direction  
of the half duplex RS-485 signal.  
D+  
D.  
GND  
Features and Specifications  
Signals:  
RS-232:  
RS-422:  
USB “A” Male Connector  
RS-232 Pinouts  
TxD, RxD and GND  
TxD+(B) / -(A),  
RxD+(B) / -(A), GND  
Data+(B) / -(A), GND  
Front:  
Top:  
The female DB9 port for the RS-232 signal is  
shown in the following figure.  
RS-485:  
Port types: RS-232: Female DB9  
RS-422/485: Terminal Block  
4 3 2 1  
54321  
TCC-80I  
Supports baudrate up to 115.2 Kbps  
RS-232 loopback: RTS to CTS; DTR to DSR  
and also DCD  
USB Connector  
Connector Pinouts  
Signals  
Supports automatic RS-485 data direction  
control with no baudrate switch settings  
15 KV ESD for all RS-232/422/485 signals  
2.5KV Optical Isolation  
Built-in 120 ohm termination resistors for  
RS-422/RS-485 (DIP switch selectable)  
Supports up to 32 units connected in an RS-485  
multi-drop network  
Serial Power Source: TxD, RTS and DTR  
(RTS/DTR ON are recommended)  
LED Port Power Indicator (switch settings)  
Ext. Power (jack): DC +5V to +12V adapters or  
a USB power cord (DC +5V)  
1
2
3
4
+5 VDC  
--  
--  
GND  
9876  
PIN  
1
RS-232  
DCD  
TxD  
2
USB  
DC Power Plug  
USB Host  
3
RxD  
DSR  
GND  
DTR  
CTS  
TCC-80  
I
A Type Female  
shorted  
shorted  
CBL-USBAP-50  
4
5
Cable Wiring  
6
inner  
outer  
1
4
+5 VDC  
GND  
7
Operating temperature: 0 to 60°C  
(32 to 140°F)  
8
RTS  
Dimensions: 42 × 80 × 22 mm  
Note: As shown above, RTS and CTS are  
Case: ABS + PC  
shorted, and DTR, DSR, DCD are shorted.  
This frees users from the hardware flow  
control cable wiring problem.  
Weight: 50 ± 5 g  
CE, FCC Class B approval  
Power Consumption: 20 mA at +5 VDC  
(termination disabled)  
Warranty: 2 years  
5-12 VDC  
20 mA (max.)  
Transio TCC-80I User’s Manual  
P/N: 1802000801000  
First Edition.  
©2006 MOXA Technologies.  
All rights reserved.  
MOXA Technologies Co., Ltd.  
 

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