Moxa TCC-80-RP Manual de Usario

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Isolated High-Speed Serial Port Powered
Serial Media Conversion Solution
TCC-80I/80I-DB9 User’s Manual P/N: 1802000801012 Third Edition.
www.moxa.com ©2008 Moxa Inc.
Moxa Inc. All rights reserved.
RS-422/485 Pinouts
The RS-422/RS-485 port with Terminal Block
Connector is shown below. Note that some for some
RS-422/485 devices, “B” is used in place of “+”
and “A” is used in place of “-“. That is, Data(B)
Data(A) are equivalent to Data (+) and Data(-),
respectively.
+T
T
+D/+R
R D/
DNG
54321
9876
PIN RS-422/485
1 T+
2 T-
3 R+/D+
4 R-/D-
5 GND
RS-232 Pinouts
The female DB9 port for the RS-232 signal is
shown in the following figure.
5 4 3 12
9 68 7
PIN RS-232
1 DCD
2 TxD
3 RxD
4 DSR
5 GND
6 DTR
7 CTS
8 RTS
Note: The RTS and CTS pins are shorted, and the
DTR, DSR, and DCD pins are shorted, so
that users do not need to worry about the
hardware flow control cable wiring
problem.
USB Power Cord
If additional external power is required, the
TCC-80I can be connected to a standard 5 to 12
VDC power supply, or the USB power cord
(CBL-USBAP-50) can be used.
USB “A” Male Connector
:tnorF
1 2 3 4
:poT
TCC-80I
USB Connector
Connector Pinouts Signals
1 +5 VDC
2 --
3 --
4 GND
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4
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2.1–0.1
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TCC-80I / TCC-80I-DB9
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
protection.
Overview
The TCC-80I is the world’s first high-speed,
isolated, self-powered converter. It is powered
through 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 provides comprehensive 15 KV ESD
protection for all serial lines. 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 or TCC-80I-DB9
• 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 or Male DB9
• Auto-senses baudrates from 50bps to 921.6Kbps
• RS-232 loopback:
RTS to CTS; DTR to DSR and DCD
• Supports automatic RS-485 data direction control
with no baudrate switch settings
• 15 KV ESD for all serial RS-232/422/485 signals
• 2.5 KV 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, or DTR
(RTS/DTR ON is recommended)
• LED Port Power Indicator (switch settings)
• External Power (jack): DC +5V to +12V adaptors
or USB Power cord (DC +5V)
• Operating temperature: 0 to 60°C
(32 to 140°F)
• × × Dimensions: 42 80 22 mm
• Case: ABS + PC
shorted • Weight: 50 ± 5 g
• CE, FCC Class B approval
• Power Consumption: 20 mA at +5 VDC
(termination disabled)
• Warranty: 5 years
shorted
TCC-80I/80I-DB9 User’s Manual TCC-80I/80I-DB9 User’s Manual
Installation
Serial (RS-232) Port Power
The RS-232 port of TCC-80I is designed with a
female DB9 socket to connect directly to the host
PC, with power drawn from the TxD, RTS, or DTR
lines. TCC-80I is capable of taking enough power
from the attached Tx line only. For those attached
serial RS-232 devices which does not provide
enough power on its Tx line, additional handshake
lines should be connected to TCC-80I. The DC jack
of TCC-80I is also provided for connecting a 5 to
12 VDC power supply via a USB power cord or
external power adaptor.
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RTD
ataD / ecruoS rewoP laireS
584/224-SR
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Port Power Dissipation
When installing an RS-232 port-powered TCC-80I
converter, pay attention to the power consumption,
RS-232 cable length, power provided by the serial
port, and the RS-422 /485 transmission distance. In
general, TCC-80I itself derives 70 mW from the
power source; a standard COM port on a host PC
can provide 70 to 90 mW of power if the TxD, RTS,
and DTR lines are connected. Moreover, the
RS-232 cable length should be shorter than 15 m
(@ 9600 bps) to ensure that less power is lost from
the host/device to the TCC-80I.
Serial Port Power Compatibility
Serial ports use a diversity of interface chips, but
the power provided by the different ports is not
always the same. In fact, some of the ports do not
provide enough power to activate the TCC-80I. The
on-board COM1 and COM2 ports seldom have
problems. The table shows the add-on cards and the
serial-to-Ethernet device servers that have been
tested as a good power source to drive the TCC-80I.
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
LED Port Power Indicator
The best way to ensure the attached serial port
provides enough electricity to the TCC-80I is to
check the power indicator LED at the front panel.
To do this, connect the TCC-80I to the target
RS-232 port, and then turn the SW4 switch to the
right side to the “Test” mode. The TCC-80I is
receiving enough power if the LED lights up after
activating the attached serial device. If the LED
does NOT light up, you will need to attach the
external power cord to the TCC-80I.
Note: Be sure to turn the SW4 switch back to Std.
mode (the default) when you finish testing.
When in Test mode, the TCC-80I WILL
NOT transmit data.
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edoM
4WS
.dtS
edoM
Optional External Power
Termination is a critical requirement for port-power
devices such as the TCC-80I. In most circumstances,
termination resistors are used when the RS-422/485
cable length is longer than 100 m. Regardless of
how much the data signal is dissipated, the
termination resistors absorb more than 75 mW of
power from the power source when TCC-80I is
unable to use the limited serial 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 (in this
case, DIP SW3 must be ON).
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ataD
droC rewoP troP BSU
/egnaR gnoL
detanimreT
584/224-SR
noitcennoC
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detanimreT
584/224-SR
noitcennoC
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ataD
By testing the TCC-80I at different baudrates and
transmission distances, we have determined the
maximum transmission distance that can be
achieved when using serial port power. The test
results are shown in the following table.
Baudrate
(bps)
RS-422/485
Transmission
Distance (m)
Embedded
Terminator
External
Power
Required
9600 1200 (ON) 120Ω NO
19200 1200 (ON) 120Ω NO
38400 600 (ON) 120Ω NO
57600 300 (ON) 120Ω NO
115200 150 (ON) 120Ω NO
Switch and Jumper Settings
To change the operation mode, check the DIP
Switch settings on the back panel.
321
NO
DIP Switch Settings
SW1 SW2 SW3 RS-422 with
Terminator OFF OFF ON
SW1 SW2 SW3
RS-422 OFF OFF OFF
SW1 SW2 SW3 4-wire RS-485 with
Terminator ON OFF ON
SW1 SW2 SW3
4-wire RS-485 ON OFF OFF
SW1 SW2 SW3 2-wire RS-485 with
Terminator ON ON ON
SW1 SW2 SW3
2-wire RS-485 ON ON OFF
DIP SW1 and SW2 are used to select the operation
modes (RS-422, 4W or 2W RS-485). The
termination is controlled by DIP SW3.
Ext. Power supply
If additional external power is required, TCC-80I is
designed to be connected to a standard 5 to 12 VDC
power adapter.

Especificaciones del producto

Marca: Moxa
Categoría: No categorizado
Modelo: TCC-80-RP

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