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RS232
to RS422 Converters
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RS232 TO RS422 CONVERTER / RS232 TO RS422 CONVERTERS
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Other products |
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FREE
Worldwide Shipping |
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(Same-Day Shipping) |
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Within USA
(Ship
from Maryland) |
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USPS Priority:
FREE |
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Customer FedEx/UPS/DHL
acc#: FREE |
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2Day: From $8 |
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Overnight: From $12 |
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(Guaranteed FedEx: Close at 5:30pm EST) |
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International |
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Registered Airmail:
FREE |
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Customer FedEx/UPS/DHL
acc#: FREE |
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FREE Express:
Orders >$150 |
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Legend |
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-1: Port-powered
-2: Externally-powered
-3: Port-powered/Isolated
-4: Externally-powered
/Isolated
Examples:
CVT-422-1
(Port-powered)
CVT-485_422-4
(Externally-powered/Opto-isolated) |
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Testimonials |
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"I am communicating with kWh (energy)
meters that have the RS485 built in, the
port-powered converter's auto-turnaround feature
works really well for my application, and I don't
have to change any configuration."
- Peter
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"The built-in 120 Ohm
terminator helps us to build a reliable data comm.
system, thanks for saving our valuable engineering
time."
- Austin
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Industrial RS232 to RS422 Converters
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CommFront offers a
range of
rugged,
industrial-grade, easy-to-use, non-isolated or
opto-isolated, port or externally-powered RS232 to RS422
converters. These industry-proven RS232 to RS422
converter products
are designed to
interface with mission-critical equipment, such as
computers, PLC, SCADA and HMI. Whether your environment is in the field, server room, factory, control room, or
fire command center, "clean" or "noisy",
these popular RS232 to RS422 converter products provide
safe, reliable, simple, and cost-effective solutions for
your data-conversion and device-protection applications. We
back our
high-quality products with a 30-day risk-free money-back guarantee
and a 5-year replacement warranty.
* A "noisy" environment
is an area
surrounded by ground loops, transient surges,
remote lightning and spikes, which could potentially harm your expensive
equipment such as computers and data communication
devices.
The CommFront opto-isolated
RS232 to RS422 converter
products provide
simple and effective ways to protect your devices from such
potential harms.
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Industrial
Port-Powered RS232
to RS422 Converter
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$32.95
Order Here
Volume Discounts
Qty: 10+ $29.66
Qty: 50+ $28.00
Other Qty:
Ask |
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Port-Powered / Non-Isolated / 300 to 115.2K Baud
/
9-Pin RS232 to 4-wire RS422/RS485
The CVT-422-1 is
a compact, rugged, industrial-grade,
port-powered, bi-directional
RS232 to RS422 converter,
which can be used to convert any standard RS232C port into a
four-wire balanced full-duplex RS485 / RS422 port and vice
versa.
The unit is powered from the
RS232 data line,
and the full-duplex RS232 to
full-duplex RS422 conversion eliminates the need of
auto-turnaround feature. Therefore,
no external power, software drivers or flow control is
required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper
setting, thus making the unit an ideal solution for all
types of mission-critical applications.
more info |
datasheet |
FAQs
|
product selection guide
|
 rs485/rs422
application note
 testing
info |
 declaration
of conformity
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Industrial
Port-Powered RS232
to RS485 / RS422 Converter
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Order Here
10%
Instant
Discount
Qty: 10+ $41.36
Other Qty:
Ask |
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Port-Powered / Non-Isolated / 300 to 115.2K Baud
/
9-Pin RS232 to 2-wire RS485 or 4-wire RS422/RS485
The CVT-485_422-1 is
a dual-function, compact, rugged, industrial-grade,
port-powered, bi-directional
RS232 to RS485 converter / RS232 to
RS422 converter,
which can be used to convert any standard RS-232C port into a
two-wire balanced half-duplex RS485,
or a four-wire balanced full-duplex RS485 / RS422 port, and
vice versa.
The unit is powered from the RS232 data line; it also supports
data direction auto-turnaround, which automatically enables the
RS485 transceiver when data is present on the RS232 side. Therefore,
no external power, software drivers or flow control is required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper setting,
thus making the unit an ideal solution for all types of
mission-critical applications.
more info |
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity |
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Industrial
Opto-Isolated Port-Powered RS232 to RS422 Converter
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$64.95
Order Here
10%
Instant
Discount
Qty: 10+ $58.46
Other Qty:
Ask
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Port-Powered / Isolated / 300 to
38.4K Baud /
9-Pin RS232 to 4-wire RS422/RS485
The CVT-422-3 is
a compact,
rugged, industrial-grade, optically-isolated, port-powered,
bi-directional
RS232 to RS422 converter,
which can be used to convert any standard RS-232C port into
a four-wire balanced full-duplex RS485 / RS422 port and vice
versa. This product features opto-isolation circuitry, which
effectively protect your RS232 devices from
ground
loops, noise problems, transient surges, remote lightning
and spikes.
The unit is powered from the
RS-232 data line, and the full-duplex RS232 to full-duplex
RS422 conversion eliminates the need of auto-turnaround
feature. Therefore, no external power, software drivers or
flow control is required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper
setting, thus making the unit an ideal solution for all
types of mission-critical applications.
more info
|
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity
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Industrial
Opto-Isolated Port-Powered RS232 to RS485 / RS422 Converter
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$69.95
Order Here
10%
Instant
Discount
Qty: 10+ $62.96
Other Qty:
Ask
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Port-Powered / Isolated / 300 to
38.4K Baud /
9-Pin RS232 to 2-wire RS485 or 4-wire RS422/RS485
The CVT-485_422-3 is
a
dual-function, compact, rugged, industrial-grade, optically
isolated, port-powered, bi-directional
RS232 to RS485 converter /
RS232 to RS422 converter, which can be used to convert any
standard RS-232C port into a two-wire balanced half-duplex
RS485 port, or a four-wire balanced full-duplex RS485 /
RS422 port, and vice versa. This product features
opto-isolation circuitry, which effectively protect your
RS-232 devices from
ground
loops, noise problems, transient surges, remote lightning
and spikes.
The unit is powered from the
RS-232 data line;
it also supports data direction auto-turnaround, which
automatically enables the RS485 transceiver when data is
present on the RS232 side. Therefore,
no external power, software drivers or flow control is
required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper
setting, thus making the unit an ideal solution for all
types of mission-critical applications.
more info |
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity |
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Industrial
25-pin Port-Powered RS232 to RS485 / RS422 Converter
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$45.95
Order Here
10%
Instant
Discount
Qty: 10+ $41.36
Other Qty:
Ask |
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Port-Powered / Non-Isolated / 300 to 115.2K Baud
/
25-Pin RS232 to 2-wire RS485 or 4-wire RS422/RS485
The CVT-485_422-1(25) is
a 25-pin version, dual-function, compact,
rugged, industrial-grade, port-powered, bi-directional
RS232 to RS485 / RS232 to
RS422 converter,
which can be used to convert any standard 25-pin RS-232C
port into a two-wire balanced half-duplex RS485 port, or a
four-wire balanced full-duplex RS485 / RS422 port and vice
versa. The unit is powered from the RS232 data line;
it also supports data direction auto-turnaround, which
automatically enables the RS485 transceiver when data is
present on the RS232 side.
Therefore, no external power, software drivers or flow
control is required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper
setting, thus making the unit an ideal solution for all
types of mission-critical applications.
more info
|
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity
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Industrial
25-pin Opto-Isolated Port-Powered RS232 to RS485 / RS422
Converter
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Model:
CVT-485_422-3(25)
$69.95
Order Here
10%
Instant
Discount
Qty: 10+ $62.96
Other Qty:
Ask |
|
Port-Powered / Isolated / 300 to
38.4K Baud /
25-Pin RS232 to 2-wire RS485 or 4-wire RS422/RS485
The CVT-485_422-3(25) is
a 25-pin
version, dual-function, compact, rugged, industrial-grade,
optically-isolated, port-powered, bi-directional
RS-232 to RS-485 converter /
RS-232 to RS-422 converter, which can be used to convert any
standard 25-pin RS-232C port into a two-wire balanced
half-duplex RS-485 port or a four-wire balanced full-duplex
RS-422 port and vice versa. This product features
opto-isolation circuitry, which effectively protect your
RS-232 devices from
ground
loops, noise problems, transient surges, remote lightning
and spikes.
The unit is powered from the
RS-232 data line;
it also supports data direction auto-turnaround, which
automatically enables the RS485 transceiver when data is
present on the RS232 side.
Therefore, no external power, software drivers or flow
control is required.
The built-in 120-Ohm
terminator can be turned ON or OFF through a simple jumper
setting, thus making the unit an ideal solution for all
types of mission-critical applications.
more info |
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity |
|
Industrial
Opto-Isolated Externally-Powered RS232 to RS485 / RS422
Converter
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Model: CVT-485_422-4
$97.95
Order Here
10%
Instant
Discount
Qty: 10+ $88.16
Other Qty:
Ask |
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Externally-Powered / Isolated
/ 300 to 115.2K Baud
/
9-Pin RS232 to 2-wire RS485 or 4-wire RS422/RS485
The CVT-485_422-4 is
a rugged,
industrial-grade, high-speed (300 to 115,200bps),
optically-isolated, externally-powered, bi-directional
RS-232 to RS-485 converter /
RS-232 to RS-422 converter, which can be used to convert any
standard RS-232C port into a two-wire balanced half-duplex
RS-485 port or a four-wire balanced full-duplex
RS-485/RS-422 port and vice versa. This product features
opto-isolation circuitry, which effectively protect your
RS-232 devices from
ground
loops, noise problems, transient surges, remote lightning
and spikes;
it also supports data direction auto-turnaround, which
automatically enables the RS485 transceiver when data is
present on the RS232 side. Therefore,
no software drivers or flow control is required.
The built-in 120-Ohm terminator can be turned ON or OFF
through a simple jumper wire, thus making the unit an ideal
solution for all types of mission-critical applications.
The unit is powered from an external 9 to 30VDC power supply
(included), so you do not have to worry about the power
capability of your RS232 device.
more info
|
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity |
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Industrial
RS485 to RS422 Converter / RS485 RS422 Repeater
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Model:
RPT-485_422-2
$69.95
Order Here
10%
Instant
Discount
Qty: 10+ $62.96
Other Qty:
Ask |
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Externally-Powered
/ Non-Isolated / 300 to 115.2K Baud
/
2-wire RS485 to 4-wire RS422 / RS485 or RS422 Repeater
The RPT-485_422-2 is
a compact, rugged, industrial-grade,
bi-directional
RS485 to RS422 converter
/ RS485 RS422 repeater, which can be used to convert any
standard two-wire half-duplex RS-485 port into a four-wire
full-duplex RS422 port and vice versa. It can also be used
to extend the RS-485 or RS-422 distance to up to 4000 ft
(1.2km).
The
unit is powered from an external 5VDC regulated power supply;
it also
supports data direction auto-turnaround. Therefore, it
requires no software drivers or flow control, making the
unit a highly reliable and truly plug-and-play device
and an ideal solution for all
types of
mission-critical
applications.
A separate external 5VDC regulated power supply is included
in the package.
more info
|
datasheet |
FAQs
|
product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity
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Opto-Isolated
RS485 RS422 Converter / Repeater (DIN-Rail / Wall-Mount)
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Model: RPT-485_422-4
$119.95
Order Here
10%
Instant
Discount
Qty: 10+ $107.96
Other Qty:
Ask |
|
Externally-Powered
/ Isolated / 300 to 115.2K Baud
/
2-wire RS485 to 4-wire RS422 / RS485 or RS422 Repeater
The
RPT-485_422-4 is a rugged, industrial-grade,
optically-isolated RS-485/RS-422 repeater/converter, which
can be used to extend the RS-485 or RS-422 distance to up to
4000 ft (1.2km), it can also can be used to convert a
two-wire RS-485 signal into a four-wire RS-422 signal, and
vice versa.
This industrial RS485 / RS422 converter / repeater
features
opto-isolation circuitry, which effectively
protects your RS-485/RS-422 devices from ground loops, noise
problems, transient surges, remote lightning and spikes.
The unit supports data rates up to 115.2K
Baud, and comes with the baud rate auto-sensing and
self-adjusting feature.
Therefore, it requires no DIP switch setting, software
drivers or flow control, making the unit a highly reliable
and truly plug-and-play device
and an ideal solution for all types of mission-critical
applications.
more
info
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datasheet |
FAQs
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product selection guide
|
rs485/rs422
application note
testing
info |
declaration
of conformity |
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