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Serial Port Powered Media Conversion Solution

TCC-82 User’s Manual P/N: 1802000820012 Fourth Edition.

RS-232 Pinouts

The female DB9 port and RS-232 pinouts for the

port are shown below.

54321

9 68 7

PIN RS-232

1 DCD

2 TxD

3 RxD

4 DSR

5 GND

6 DTR

7 CTS

8 RTS

The male DB9 port and RS-232 pinouts for the port

are shown below.

12345

6789

PIN RS-232

1 DCD

2 RxD

3 TxD

4 DTR

5 GND

6 DSR

7 RTS

8 CTS

Note: The DTR, DSR and DCD pins are shorted

as shown above so that users do not need

to worry about signal control cable wiring.

TCC-82 V2.0

4-channel, self-powered RS-232 signal isolator

(4KV RMS for 1 min. isolation) with 15 KV ESD

protection

Overview

The TCC-82 is a signal isolator that provides

bi-directional serial communication with full

electrical isolation between two RS-232 devices.

This compact isolator isolates both sides of the

connection, providing perfect protection from

ground loops, lightning surge coupling, and

accidental high voltage shorts. The internal

magnetic coupler is tested to ensure that it can

withstand more than 4 KV rms input-to-output for 1

minute. This guarantees that the TCC-82 not only

meets the requirements of general serial data

communications, but also the high standards

required by industrial automation and medical

applications. In addition to the TxD and RxD data

lines, the TCC-82 also protects the RTS/CTS

handshake lines on its two D-type connectors.

Package Checklist

• TCC-82 RS-232 Signal Isolator

• 2 USB Power Cords

• User’s Manual

Applications

• Medical facilities

• Terminal connections

• Factory automation

• Remote serial device control

• Building security automation

• Critical industrial control

• Surveillance systems

Features and Specifications

• Serial interface: RS-232

• Serial port type: DB9 (1 male, 1 female)

• Compact size

• Auto senses baud rates up to 115.2 Kbps

• Signals:

RS-232 Isolation: TxD, RxD, RTS and CTS;

• RS-232 loop back: DTR to DSR and DCD

• 15 KV ESD protection for all RS-232 signals

• Serial Power Source: TxD, RTS, or DTR

• External Power (jack connector): DC +5V to

+12V adaptors or by USB power cords.

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

• Dimensions: 42 x 80 x 23.6 mm

• Casing: ABS + PC

• Weight: 60 ± 5g

• CE, FCC Class B approval

• Power Consumption: 20 mA at +5 VDC

• Warranty: 5 years

shorted

TCC-82 User’s Manual TCC-82 User’s Manual

Installation

Independent Serial Port Power

TCC-82 has two power inputs, which means that

both sides of the isolator must be powered

independently and separately to maintain the

isolation. Ideally, both sides can get power directly

from the RS-232 TxD data lines and the RTS/DTR

handshake lines, regardless of whether the signal is

high or low. This also eliminates the need to use

external power supplies for most systems. The

configuration of the wires and the entire system can

be maintained easily.

In most situations, the TCC-82 can get enough

power from the attached Tx line. If the attached

serial device does not provide enough power

through the Tx line, additional handshake lines can

used to power the TCC-82.

Implementing External Power

When connecting the TCC-82, all output signals

should be connected, since the TCC-82 derives

power from these signals, even if they are not used

by your system to transmit data signals. Care should

be taken when implementing the external power

supply. Usually, one side of the TCC-82 is attached

to the host PC by a short serial cable. On the other

side, the serial cable may be too long and the power

from the remote device will not be sufficient to

activate the other end of the TCC-82. Refer to the

following figure to see an example that implements

external power.

It is also important to use the external power supply

if the TCC-82’s full 4 KV of isolation is required to

operate correctly. Most of the commercial power

supplies that are available on the market only

provide 1500 VAC or less of isolation between the

primary and secondary windings. If both sides of

the isolator require external power, then two

separate isolated 4 KV protected power supplies are

required.

NOTE: Be sure to connect the two power adaptors

to different power channels.

Using different power inputs for the two power

channels is an integral part of the isolation design.

DO NOT implement your power system as follows:

Compatibility of Serial Interfaces

Different kinds of serial ports use different interface

chips, and provide different power levels. In fact,

some ports will not provide enough power to

activate the TCC-82.

You will seldom encounter problems with a PC’s

onboard COM1 and COM2 ports. Refer to the

following table for add-on cards and

serial-to-Ethernet device server that are guaranteed

to provide sufficient power.

Multiport Serial Boards Serial Device Servers

Moxa Boards

CP-168U Series

CP-104U Series

CP-102U Series

C168H Series

C104H Series

Moxa NPort Servers

CN2510

CN2610

NPort5110

NPort5210

NPort5410

NPort5610

NPort6150

NPort6250

NPort6450

NPort6650

Optional USB Power Cord

If additional external power is required, the TCC-82

can be connected to a standard 5 to 12 VDC power

supply, or a USB power cord.

CBL-USBAP-50

USB “A” Male Connector

Front:

4 3 2 1

Top:

TCC-82 USB Connector

Connector Pinouts Signals

1 +5 VDC

2 --

3 --

4 GND

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05-PABSU-LBC

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elameF epyT A

CDV 5+

DNG

gniriW elbaC

12 VDC

10 mA (max.)

Ø2.1±0.1

Ø5.1±0.1

Produktspezifikationen

Marke:	Moxa
Kategorie:	Nicht kategorisiert
Modell:	TCC-82
Gewicht:	60 g
Betriebstemperatur:	0 - 60 °C
Relative Luftfeuchtigkeit in Betrieb:	5 - 95 %
Zertifizierung:	CE, FCC
Gehäusematerial:	ABS Synthetik
Temperaturbereich bei Lagerung:	-20 - 75 °C
Energieverbrauch:	20 mA
Abmessungen (BxTxH):	42 x 80 x 23.6 mm
Eingangsspannung:	5 - 12 V
Anzahl serielle Anschlüsse:	2
Hostschnittstelle:	RS-232
Ausgangsschnittstelle:	RS-232
Baudrate:	921.6 Kbit/s
Elektrostatischer Entladunsschutz (ESD):	15 kV
RS-232 Signale:	CTS, RTS, Rx, Tx
Entkopplung:	4 kV