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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