SWD.de/+ Manufacturer +/CommFront Ltd./CFR-SERIAL CONVERTERS / ISOLATORS / REPEATERS / HUBS/CFR-RS232 / RS485 / RS422 OPTO ISOLATORS/ ISOLATED CONVERTERS products

CFR-HUB-SERIAL-4 159,75 �

Sun, 09 Dec 2018 12:50:22 +0100

HUB-SERIAL-4 Opto-Isolated RS232/RS485/RS422(4-Wire) 4-Port Hub / Splitter (Industrial)

The HUB-Serial-4 is a rugged, industrial-grade, optically-isolated RS-232/485/422 Hub / Splitter, which can be used to expand 3-wire RS-232 or 4-wire RS-485 / RS-422 networks by splitting one network into four (star wiring), in turn increasing the maximum number of nodes and the distance covered by an RS-232 / RS-485 / RS-422 network. This industrial opto-isolated RS-232/RS-485/RS-422 Hub / Splitter operates within a temperature range of -40ºF to 185ºF (-40ºC to 85ºC), features 600W surge protection, 15kV ESD static protection and 2500V opto-isolation circuitry, which effectively protect your RS232 / RS485 / RS422 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit comes with options for RS485, RS422, or RS232 input, for easy installation. It was designed so that data coming from the input (RS-232, RS-485, or RS-422) will transmit to all four loops of networks. However, each loop of RS232 / RS485 / RS422 devices will transmit data back to the input only, thus reducing any possible interference between each loop of the RS-232 / RS-485 / RS-422 devices. Also, the failure of any individual loop will not affect other loops, making the RS-232 / RS-485 / RS-422 networks more robust and reliable. The unit supports data rates up to 115.2K Baud and features data format auto-sensing and self-adjusting; therefore, no DIP switch, jumper settings, software drivers or flow control is required. A separate external 5VDC power supply is included in the package, and the product can be mounted directly on a wall or panel.

CFR-HUB-485-4-EU 138,96 �

Mon, 15 Feb 2021 15:55:54 +0100

Industrial Opto-Isolated RS485 Hub (Externally-powered)

Model: HUB-485-4

The HUB-485-4 is a rugged, industrial-grade, optically-isolated RS-485 Hub/Splitter/Repeater, which supports multi-drop 2-wire RS485 networks and can be used to expand RS485 networks by splitting one RS485 network into four (star wiring), in turn increasing the maximum number of nodes and the distance covered by an RS485 network. The product features 2500V opto-isolation circuitry and supports data direction auto-turnaround. The unit is powered from an external 9 to 30VDC power supply (included), and it can be mounted directly on a wall, panel or DIN Rail, without a need of using any unsecured DIN-Rail or wall-mount brackets.

2-wire RS485 | 300 to 115.2K Baud

CFR-HUB-485-4 127,45 �

Tue, 05 Oct 2021 16:05:43 +0200

Industrial Opto-Isolated RS485 Hub (Externally-powered)

Model: HUB-485-4

2-wire RS485 | 300 to 115.2K Baud

CFR-RPT-485_422-4 101,95 �

Thu, 25 Nov 2021 09:20:26 +0100

Industrial Opto-Isolated RS485 RS422 Converter / RS485 to RS422 Repeater

Model: RPT-485_422-4

The RPT-485_422-4 is a rugged, industrial-grade, optically-isolated RS485 / RS422 repeater / converter, which can be used to extend the RS485 or RS422 distance to up to 4000 ft (1.2km), it can also can be used to convert a 2-wire RS485 signal into a 4-wire RS422 signal, and vice versa. This product features 2500V opto-isolation circuitry, which effectively protects your RS422 / RS485 devices from transient surges, ground loop, remote lightning and spikes. The unit supports serial data rates up to 115,200bps and features data format auto-sensing and self-adjusting, and, therefore, no DIP switch or jumpers are required. When working with RS485 signals, the CommFront’s auto-turnaround feature eliminates the need for software drivers and flow control.

2-wire RS485 or 4-wire RS422/RS485 | 300 to 115.2K Baud

CFR-CVT-232A-4 40,75 �

Thu, 07 Nov 2019 11:33:29 +0100

CVT-232A-4 HIGH-SPEED EXTERNALLY-POWERED RS232 ISOLATOR (3-WIRE)

Model: CVT-232A-4In stock

The CVT-232A-4 is a high-speed (300 to 115,200bps), externally-powered, 3-wire RS232 isolator that can be used to protect your RS-232 devices from ground loops, noise problems, transient surges, remote lightning, and spikes. This industrial 3-wire RS232 isolator operates within a temperature range of -40ºF to 185ºF (-40ºC to 85ºC), and features 5000V opto-isolation, 600W surge protection, and 15kV ESD static protection. The unit is powered from an external 5V DC regulated power supply (included), and it comes with the auto-sensing and self-adjusting features, which automatically adjust baud rate, parity, stop bit and other COM port parameters to the devices that it is connected to. Therefore, it requires no manual settings or software drivers, making the unit a highly reliable and truly plug-and-play device.

CommFront's product quality is ensured by our strict ISO 9001:2008 quality control system, and we back our high-quality RS232 isolator products with a 30-day risk-free money-back guarantee and a 5-year replacement warranty.

CFR-CVT-232A-3 30,55 �

Thu, 03 Jun 2021 23:20:59 +0200

CVT-232A-3, 3-Wire Industrial Port-Powered RS232 Isolator

The CVT-232A-3 is a compact, rugged, industrial-grade, port-powered, 3-wire RS232 isolator. This 3-wire RS232 opto-isolator features 5000V opto-isolation circuitry and optically isolates three (3) RS-232 lines (TX, RX and GND), which effectively protects your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit operates within a temperature range of -40ºF to 185ºF (-40ºC to 85ºC), and features 600W surge protection and 15kV ESD static protection. This 3-wire RS232 isolator is efficiently powered from the RS232 data line, and it comes with the auto-sensing and self-adjusting features, which automatically adjust baud rate, parity, stop bit and other COM port parameters to the devices that it is connected to. Therefore, it requires no external power, manual settings or software drivers, making the unit a highly reliable and truly plug-and-play device.

See also: A custom-made product of CVT-232A-3 with reversed bolts and nuts (Part Number: CVT-232A(C)-3).

CFR-CVT-232B-3 50,95 �

Fri, 15 Jan 2021 20:55:23 +0100

CFR-CVT-232B-3 7-Wire Industrial Port-Powered RS232 Isolator

The CVT-232B-3 is a compact, industrial-grade, port-powered RS-232 isolator. The unit optically isolates seven (7) RS-232 lines (TX, RX, RTS, CTS, DTR, DSR and GND), which effectively protects your RS-232 devices from ground loops, transient surges, remote lightning and spikes. The 2500V optical isolation also eliminates ground loop and noise problems. The unit is efficiently powered from the RS-232 data line, and therefore, no external power, software drivers or RTS, DTR is required.

7-wire RS232 | 300 to 19.2K Baud

CFR-CVT-422-3 55,20 �

Thu, 02 Apr 2020 14:57:32 +0200

CVT-422-3 Industrial Opto-Isolated Port-Powered RS232 to RS422 Converter

CFR-CVT-485-3 55,20 �

Tue, 08 Sep 2020 11:00:31 +0200

Industrial Opto-Isolated Port-Powered RS232 to RS485 Converter

Model: CVT-485-3

The CVT-485-3 is a industrial-grade, optically-isolated, port-powered RS232 to RS485 converter, which supports multi-drop RS485 networks and can be used to communicate with one loop of up to 64 units of 2-wire RS485 devices. This product features 2500V opto-isolation circuitry, which effectively protect your RS232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit is efficiently powered from the RS-232 data line and it supports data direction auto-turnaround. The ALL-IN-ONE rugged terminal block, which was professionally designed for different requirements, comes with an optional 5V DC input and a selectable 120-Ohm terminator, thus making it an ideal solution for all types of installations.

2-wire RS485 | 1.2K to 57.6K Baud | Optional 5V DC input

CFR-CVT-485_422-3 59,45 �

Fri, 24 Jan 2020 14:39:35 +0100

CVT-485_422-3 Industrial Opto-Isolated Port-Powered RS232 to RS485 / RS422 Converter

Model: CVT-485_422-3

The CVT-485_422-3 is a dual-function, industrial-grade, optically isolated, port-powered RS232 to RS422 converter / RS232 to RS485 converter, which supports multi-drop RS422 / RS485 networks and can be used to communicate with one loop of up to 64 units of 2-wire RS485 or 4-wire RS422 / RS485 devices. This product features 2500V opto-isolation circuitry, which effectively protect your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit is efficiently powered from the RS-232 data line and it supports data direction auto-turnaround. The ALL-IN-ONE rugged terminal block, which was professionally designed for different requirements, comes with an optional 5V DC input and a selectable 120-Ohm terminator, thus making it an ideal solution for all types of installations.

2-wire RS485 or 4-wire RS422/RS485 | 1.2K to 38.4K Baud | Optional 5V DC input

CFR-CVT-485_422-3(25) 59,45 �

Tue, 05 Feb 2019 16:19:16 +0100

CVT-485_422-3(25) Industrial 25-pin Opto-Isolated Port-Powered RS232 to RS485 / RS422 Converter

Model: CVT-485_422-3(25)

The CVT-485_422-3(25) is a 25-pin version, dual-function, industrial-grade, optically-isolated, port-powered RS232 to RS422 converter / RS232 to RS485 converter, which supports multi-drop RS485/RS422 networks and can be used to communicate with one loop of up to 64 units of 2-wire RS485 or 4-wire RS422 / RS485 devices. This product features 2500V opto-isolation circuitry. It is efficiently powered from the RS-232 data line and it supports data direction auto-turnaround. The ALL-IN-ONE rugged terminal block, which was professionally designed for different requirements, comes with an optional 5V DC input and a selectable 120-Ohm terminator, thus making it an ideal solution for all types of installations.

2-wire RS485 or 4-wire RS422/RS485 | 1.2K to 38.4K Baud | Optional 5V DC input

CFR-CVT-485_422-4 83,25 �

Mon, 15 Apr 2019 15:24:14 +0200

CVT-485_422-4 industrial Externally-Powered Opto-Isolated RS232 to RS485 / RS422 Converter incl. PS (optional Stecker/Plug CFR-PLUG-US-EU2 =EUR 4,-)

CFR-CVT-232A(C)-3 37,37 �

Sun, 09 Feb 2020 15:18:29 +0100

CVT-232A(C)-3 RS232 Opto-Isolator (3-Wire / Industrial / Port-Powered / Custom-made with Reversed Bolts and Nuts)

Note: This is a custom-made product of CVT-232A-3 with reversed bolts and nuts.

The CVT-232A(c)-3 is a compact, rugged, industrial-grade, port-powered, 3-wire RS232 isolator. This 3-wire RS232 opto-isolator features 5000V opto-isolation circuitry and optically isolates three (3) RS-232 lines (TX, RX and GND), which effectively protects your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit operates within a temperature range of -40ºF to 185ºF (-40ºC to 85ºC), and features 600W surge protection and 15kV ESD static protection. This 3-wire RS232 isolator is efficiently powered from the RS232 data line, and it comes with the auto-sensing and self-adjusting features, which automatically adjust baud rate, parity, stop bit and other COM port parameters to the devices that it is connected to. Therefore, it requires no external power, manual settings or software drivers, making the unit a highly reliable and truly plug-and-play device.

CFR-CVT-232B(C)-3 61,64 �

Sun, 09 Dec 2018 14:54:27 +0100

CVT-232B(C)-3 RS232 Opto-Isolator (7-Wire / Industrial / Port-Powered / Custom-made with Reversed Bolts and Nuts)

Note: This is a custom-made product of CVT-232B-3 with reversed bolts and nuts.

The CVT-232B(c)-3 is a compact, rugged, industrial-grade, port-powered, 7-wire RS-232 Isolator. This 7-wire RS-232 isolator optically isolates seven (7) RS-232 lines (TX, RX, RTS, CTS, DTR, DSR and GND), which effectively protects your RS-232 devices from ground loops, noise problems, transient surges, remote lightning and spikes. The unit operates within a temperature range of -40ºF to 185ºF (-40ºC to 85ºC), and features 600W surge protection and 15kV ESD static protection. This 7-wire RS-232 opto-isolator is efficiently powered from the RS232 data line, and it comes with the auto-sensing and self-adjusting features, which automatically adjust baud rate, parity, stop bit and other COM port parameters to the devices that it is connected to. Therefore, it requires no external power, manual settings or software drivers, making the unit a highly reliable and truly plug-and-play device.