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SERIAL RS232, RS485 AND RS422 CONVERTERS |
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PORT POWERED
RS232 TO RS485 CONVERTER
CE Certified
Model CVT-485-1
DB9-Female To DB9-Male or Terminal
Plug-and-Play, port powered, and
bi-directional RS232 to RS485 (2 WIRE) converter. No power supply
required. Completely Auto-Sensing and Self-Adjusting Baud Rates and
Data Formats. Extend the RS232 transmission distance up to
4000 feet.
300 To 115.2K Baud Operation
CVT-485-1 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$59.95 $48.95
ORDER HERE |
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PORT POWERED
RS232 TO RS485/RS422 CONVERTER
CE Certified
Model CVT-485_422-1
DB9-Female To DB9-Male or Terminal
Plug-and-Play, port powered. and
bi-directional RS232 to RS485
(2 WIRE) or
RS232 to RS422 (4 WIRE) converter. No power supply required.
Completely Auto-Sensing and Self-Adjusting Baud Rates and Data
Formats. Extend the RS232 transmission distance up to 4000
feet.
300 To 115.2K Baud Operation
CVT-485_422-1 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$69.95 $59.95
ORDER HERE |
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PORT POWERED
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OPTICALLY ISOLATED
RS232 TO RS485/RS422 CONVERTER
CE Certified
Model CVT-485_422-3
DB9-Female To DB9-Male or
Terminal
Plug-and-Play, port powered,
bi-directional and optically isolated
RS232 to RS485 (2 WIRE) or RS232 to RS422 (4 WIRE) converter. This converter features optical isolation,
which protects your RS232 devices from transient surges,
ground loop, and remote lightning.
300 To 19.2K Baud Operation
CVT-485_422-3 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$94.95 $84.95
ORDER HERE |
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9 PIN AND 25 PIN
SERIAL GENDER CHANGERS
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RS232 9 PIN
MALE TO MALE
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RS232 9 PIN
FEMALE TO FEMALE
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RS232 25 PIN
MALE TO MALE
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RS232 25 PIN
FEMALE TO FEMALE
$4.95
9 PIN TO 25 PIN
SERIAL CONVERTERS
$5.95
SERIAL NULL MODEM
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OUR QUALITY GUARANTEE!
We back our high
quality products
with a 30 DAY Satisfaction Guarantee and a 3 year workmanship
Warranty. When you buy CommFront products you are buying the best quality,
and that is very important
when interfacing with expensive equipment. CommFront's
products are widely used by industry leaders. Here are some of our
valued customers, just to name a few:
| Allied
Electronics |
AT&T |
| BAE
Systems Corp. |
Cisco |
| Comcast
Corp. |
General
Electric |
| Harris
Corp. |
Hewlett
Packard |
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Honeywell Corp. |
IBM |
| Intel
Corp. |
ITT
Corp. |
| Johnson
Controls |
L-3
Communications |
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Lockheed Martin |
Mitre Corp. |
| NASA |
Northrop Grumman |
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Panasonic |
Princeton University |
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Raytheon Corp. |
Seagate
Technologies |
| Siemens
Corp. |
Sirius
Satellite Radio |
| The
Boeing Company |
Tyco
Telecomm. |
| Union
Switch & Signal |
USAF Academy |
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3-YEAR
WARRANTY |
NEXT
DAY
DELIVERY |
WORLD
SHIP |
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EXTERNALLY
POWERED
RS485 TO RS422 CONVERTER / REPEATER
CE CERTIFIED
Model RPT-485_422-2
DB9-Male or Terminal To
DB9-Male or Terminal
Plug-and-Play bi-directional and externally powered RPT-485_422-2 is a RS485
to RS422
converter, which can be used to extend the RS485 or RS422
distance to up to 4000 ft (1.2km). It can also be used to convert a
two-wire RS485 signal into a four-wire RS422 signal, and vice
versa.
300 To 115.2K Baud Operation
OPTIONAL 5V POWER SUPPLY AVAILABLE
RPT-485_422-2 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$79.95 $74.95
ORDER HERE |
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SERIAL RS232 TTL CONVERTERS |
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PORT POWERED
RS232 TO TTL-5V
CONVERTER
CE CERTIFIED
Model TTL-232-1
DB9-Female To DB9-Male or
Terminal
Plug-and-Play, port powered
bi-directional RS232 to TTL-5V converter, which can be used to convert
from RS232 to 5V DC TTL
compatible levels and vice versa. Completely
Auto-Sensing and Self-Adjusting Baud Rates and Data Formats. No power supply required.
TTL-232-1 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$49.95 $39.95
ORDER HERE |
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PORT
POWERED
RS232 TO LOW VOLT TTL-3.3V CONVERTER
CE CERTIFIED
Model TTL33-232-1
DB9-Female To DB9-Male or Terminal
Plug-and-Play, port powered
bi-directional RS232 to Low Voltage TTL-3.3V converter, which can be used to convert RS232 to
3.3V CMOS DC TTL
compatible levels and vice versa. Completely
Auto-Sensing and Self-Adjusting Baud Rates and Data Formats. No power supply required.
TTL33-232-1 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$49.95 $39.95
ORDER HERE |
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EXTERNAL POWERED
RS485 TO TTL-5V CONVERTER
CE CERTIFIED
Model TTL-485-2
DB9-Male or Terminal To
DB9-Male or Terminal
Plug-and-Play, bi-directional RS485 to TTL converter,
which can be used to convert RS485 to 5V DC TTL compatible levels
and vice versa. It is also ideal for extending the TTL
distance. The unit is powered from an external 5V DC
power supply.
OPTIONAL 5V POWER SUPPLY AVAILABLE
TTL-485-2 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$59.95 $49.95
ORDER HERE |
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SERIAL ISOLATORS & OPTO-ISOLATED CONVERTERS |
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PORT
POWERED - OPTICALLY ISOLATED
3-WIRE RS232 ISOLATOR
CE CERTIFIED
Model CVT-232A-3
DB9-Female To DB9-Male
Plug-and-Play, port powered RS232
Isolator optically isolates three RS232 lines (TX, RX and GND),
which effectively protects your RS232 devices from transient surges,
ground loop, and remote lightning. Optical isolation also
eliminates ground loop and noise problems. The isolator is
powered from the rs232 data line, and therefore, no external power
or RTS, DTR is required.
300 To 38.4K Baud Operation
CVT-232A-3 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$74.95 $64.95
ORDER HERE |
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PORT POWERED
- OPTICALLY ISOLATED
7-WIRE RS232 ISOLATOR
CE CERTIFIED
Model CVT-232B-3
DB9-Female To DB9-Male
Plug-and-Play, port powered RS232
Isolator which optically isolates seven RS232 lines (TX, RX, RTS, CTS, DTR,
DSR and GND), which protects your RS232 devices from
transient surges, ground loop, and remote lightning. Optical
isolation also eliminates ground loop and noise problems. The
isolator is powered from the rs232 data line, and therefore, no
external power or RTS, DTR is required.
300 To 19.2K Baud Operation
CVT-232B-3 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$84.95 $74.95
ORDER HERE |
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PORT POWERED
-
OPTICALLY ISOLATED
RS232 TO RS485/RS422 CONVERTER
CE Certified
Model CVT-485_422-3
DB9-Female To DB9-Male or Terminal
Plug-and-Play, port powered,
bi-directional and optically isolated
RS232 to RS485 (2 WIRE) or RS232 to RS422 (4 WIRE) converter. This converter features optical isolation circuitry,
which effectively protect your RS232 devices from transient surges,
ground loop, and remote lightning. Completely Auto-Sensing and
Self-Adjusting Baud Rates and Data Formats.
300 To 19.2K Baud Operation
CVT-485_422-3 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
$94.95 $84.95
ORDER HERE |
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FIBER OPTIC MEDIA CONVERTERS |
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RS232 / RS485 / RS422 TO
FIBER OPTIC MEDIA CONVERTER
CE, and FCC Certified
Model FBR-SERIAL-2
SINGLE-MODE OR MULTI-MODE
ST OR SC CONNECTION TYPE
The FBR-Serial-2 is a multi-functional
serial to fiber optic converter (fiber optic modem) that supports
asynchronous serial communications (RS232, RS485, and RS422) through
fiber optic links.
FBR-SERIAL-2 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
MM (Multi-Mode)/ST - $174.95
MM (Multi-Mode)/SC - $174.95
SM (Single-Mode)/ST - $234.95
SM (Single-Mode)/SC - $234.95
ORDER
HERE
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MEDIA
CONVERTERS
EXTEND THE
DISTANCE
OF YOUR SERIAL OR
ETHERNET DATA
UP TO 12 MILES
USING
FIBER OPTIC |
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ETHERNET TO FIBER OPTIC
MEDIA CONVERTER
CE, and FCC Certified
Model FBR-SERIAL-2
SINGLE-MODE OR MULTI-MODE
ST OR SC CONNECTION TYPE
The FBR-Ethernet-2 is a 10/100M Ethernet to
fiber optic media converter, which provides one channel for media
conversion between 10/100BaseTX and 100BaseFX.
FBR-ETHERNET-2 CONVERTER DETAILS
QUALITY/PRICE GUARANTEE!
MM (Multi-Mode)/ST - $114.95
MM (Multi-Mode)/SC - $114.95
SM (Single-Mode)/ST - $144.95
SM (Single-Mode)/SC - $144.95
ORDER HERE
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