Moxa TCC-80I - Manual

Isolated High-Speed Serial Port Powered

Serial Media Conversion Solution

Transio TCC-80I User’s Manual

P/N: 1802000801000

First Edition.

www.moxa.com

©2006

MOXA

Technologies.

MOXA Technologies Co., Ltd.

All rights reserved.

RS-422/485 Connection

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(-).

RS-422/4w RS-485 2w RS-485

T+
T

.

R+/D+

R

.

/D

.

GND

R+
R

.

T+
T

.

GND

T+
T

.

R+/D+

R

.

/D

.

GND

D+
D

.

GND

RS-232 Pinouts

The female DB9 port for the RS-232 signal is
shown in the following figure.

5 4 3 2 1

9

6

8 7

PIN RS-232

1 DCD

2 TxD

3 RxD

4 DSR

5 GND

6 DTR

7 CTS

8 RTS

Note:

As shown above, RTS and CTS are

shorted, and DTR, DSR, DCD are shorted.
This frees users from the hardware flow
control cable wiring problem.

USB Power Cord

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

.

USB “A” Male Connector

Front:

4 3 2 1

Top:

TCC-80I
USB Connector
Connector Pinouts Signals

1 +5

VDC

2 --
3 --
4 GND

TCC-80

I

inner

outer

DC Power Plug

CBL-USBAP-50

USB

USB Host
A Type Female

+5 VDC
GND

Cable Wiring

1
4

5-12 VDC

20 mA (max.)

Ø2.1±0.1

Ø5.1±0.1

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.

Overview

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.

Package Checklist

•

TCC-80I

•

USB Power Cord

•

User’s Manual

Applications

•

Multipoint data acquisition

•

Factory automation

•

Remote serial device control

•

Building security automation

•

Critical industrial control

Features and Specifications

•

Signals:
RS-232:

TxD, RxD and GND

RS-422:

TxD+(B) / -(A),

RxD+(B) / -(A), GND

RS-485:

Data+(B) / -(A), GND

•

Port types: RS-232: Female DB9

RS-422/485:

Terminal

Block

•

Supports baudrate up to 115.2 Kbps

•

RS-232 loopback: RTS to CTS; DTR to DSR
and also DCD

•

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)

•

Operating temperature: 0 to 60°C
(32 to 140°F)

•

Dimensions: 42

×

80

×

22 mm

•

Case: ABS + PC

•

Weight: 50

±

5 g

•

CE, FCC Class B approval

•

Power Consumption: 20 mA at +5 VDC
(termination disabled)

•

Warranty: 2 years

shorted

shorted