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RS232 & RS422 Interface Products:

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    • Clear-Com EF-701M Four Wire RS-422 Interface with Call Signal

      Clear-Com EF-701M Four Wire RS-422 Interface with Call Signal

      4-Wire Interface with Call Signal, Matrix-to-Party-line

      The EF-701M interface converts a single channel of standard or TW party-line intercom to four-wire audio, while also converting call signals to RS-422 data (and back). The resulting four-wire audio plus RS-422 data can then be sent to a Clear-Com Matrix port, fiber-optic converter (modem) or connected to another EF-701M over twisted-pair cable such as CAT-5E.

      The EF-701M 4-Wire and Matrix Direct Interface is a flexible and powerful tool for c


       

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      Item #: CC-EF-701M

      Availability: Direct Ship From Manufacturer

      Our Price: $711.00

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    • DNF AIB-1 AnyWhere Interface Box GPI Control / Monitoring & Data Conversion Interface

      DNF AIB-1 AnyWhere Interface Box GPI Control / Monitoring & Data Conversion Interface

      Quickly and easily create control, monitoring, and interface solutions specifically for your project. This One Box Solution requires no adapters, no kludges and delivers "Smart" control where you need it most. Powered over Ethernet (or external power supply) and configured using web browser.

      The AnyWhere Interface Box (AIB) maps an EVENT input to an ACTION output.
      EVENT Inputs- GPI Input, Serial Receive, Ethernet Receive, and Periodic Timer
      ACTION Outputs- GPO Output, Serial Transmit, Ethernet Tran




















         

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        Item #: DNF-AIB-1

        Availability: Usually ships in 3-10 business days

        Our Price: $984.89

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      • Startech NETRS232485 1 Port RS-232/422/485 Serial to IP Ethernet Device Server - 2x 10/100Mbps Ports

        Startech NETRS232485 1 Port RS-232/422/485 Serial to IP Ethernet Device Server - 2x 10/100Mbps Ports

        The NETRS232485 Serial Device Server lets you remotely manage an industrial RS232/422/485 serial device over a local or wide area network (LAN/WAN), with redundant power inputs and dual 10/100Mbps Ethernet ports.

        To minimize downtime, this intuitive dual Ethernet serial over IP solution maintains connection to your critical equipment by automatically switching to its secondary LAN port within 10 milliseconds of a network failure or disruption.

        Ideal for industrial environments, the serial to Ether















           

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          Item #: ST-NETRS232485

          Availability: Direct Ship From Manufacturer

          Our Price: $174.95

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        • DNF EB-44-RV Four Ethernet Buttons with 4 GPI (in/out) & Serial Port - Vertical Mount Fits into 3-RU Panel

          DNF EB-44-RV Four Ethernet Buttons with 4 GPI (in/out) & Serial Port - Vertical Mount Fits into 3-RU Panel

          With DNF Controls EB-44RV the IP Control Buddy controls any Ethernet, RS422, or RS232 enabled device from a button push, GPI trigger, relay closure, or web page button. The IP Buddy helps Turn on/off, Start/Stop, Open/Close, whatever device you are using that you wish to control.

          One button press can Turn a GPI Output On or Off, Transmit a Serial Command and Transmit an Ethernet TCP, UDP, SNMP, or HTTP command. EB-44RV is Programmer-free and a browser-based setup that uses drop-down menus & fil

               

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              Item #: DNF-EB-44-RV

              Availability: Direct Ship From Manufacturer

              Our Price: $779.75

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            • DNF EB-44-RH Four Ethernet Buttons with 4 GPI (in/out) & Serial Port - Horizontal Mount Fits into 1-RU Panel

              DNF EB-44-RH Four Ethernet Buttons with 4 GPI (in/out) & Serial Port - Horizontal Mount Fits into 1-RU Panel

              With DNF Controls EB-44RH the IP Control Buddy controls any Ethernet, RS422, or RS232 enabled device from a button push, GPI trigger, relay closure, or web page button. The IP Buddy helps Turn on/off, Start/Stop, Open/Close, whatever device you are using that you wish to control.

              One button press can Turn a GPI Output On or Off, Transmit a Serial Command and Transmit an Ethernet TCP, UDP, SNMP, or HTTP command. EB-44RH is Programmer-free and a browser-based setup that uses drop-down menus & fil

                   

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                  Item #: DNF-EB-44-RH

                  Availability: Usually ships in 3-10 business days

                  Our Price: $769.99

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                • GoldX GXMU-1200 USB to DB 9 Serial Converter Cable 6 Foot

                  GoldX GXMU-1200 USB to DB 9 Serial Converter Cable 6 Foot

                  Even though many computers and peripherals have changed the interface to the new USB standard, there are many broadcast devices and automated systems which still use the old standard serial interfaces. This device allows the computer to communicate with those devices when there is not a serial port native on the computer anymore. By having a USB A male connector on one end and a DB 9 serial connector on the other, which emulates a serial port that is found on the back of some computers, the comm

                   

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                  Item #: GXMU-1200

                  Availability: In Stock

                  Our Price: $22.40

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                • StarTech NM9FF DB9 RS232 Serial Null Modem Cable Adapter (F/F)

                  StarTech NM9FF DB9 RS232 Serial Null Modem Cable Adapter (F/F)

                  A cost-saving way to convert a straight through cable into a null modem cable.

                  The ST-NM9FF Null Modem Cable Adapter features two DB9 female connectors.

                  The ST-NM9MF Null Modem Cable Adapter features one DB9 male and one DB9 female connector.

                  The ST-NM9MM Null Modem Adapter features two DB9 male connectors.

                  Lifetime warranty and free lifetime technical support.

                   

                  3 Types Available

                  Item #: ST-NM9FF

                  Availability: In Stock

                  Our Price: $6.95

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                • 12 Point RS-422 9-Pin Female-Female Patch Panel 1RU/12 Across

                  12 Point RS-422 9-Pin Female-Female Patch Panel 1RU/12 Across

                  Connectronics Patch panels feature DB9 to DB9 feed-thru connectors. Excellent for a serial data (RS422 or RS232) patching requirements. Mounted on 16 gauge rack mount panel. Perfect for all broadcast/network applications.Model 24XDB9F/F shown.

                   

                  4 Patch Points Available

                  Item #: 12XDB9F/F

                  Availability: In Stock

                  Our Price: $151.50

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                • Black Box IC1473A-F RS232 to RS-422 Interface Bidirectional Converter

                  Black Box IC1473A-F RS232 to RS-422 Interface Bidirectional Converter

                  Async RS232 to RS-422 Interface Bidirectional Converter, DB9 Female to Terminal Block

                  • Converts unbalanced RS-232 signals to balanced RS-422 signals.
                  • The RS-232 side has a DB9 port configured as DCE.
                  • The RS-422 side has a terminal block.
                  • For DB9 equipment, if the peripheral operates on the RS-422 signal, use only one DB9 converter. But if the transmitting and receiving equipment only operates on RS-232, use two converters.
                  • All provide 115.2-kbps speed for distances up to 4000 feet (1219.2 m).
                  • Operatio

                   

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                  Item #: BBX-IC1473A-F

                  Availability: Usually ships in 3-10 business days

                  Our Price: $102.29

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                • Black Box IC1473A-F-ET Async RS-232 to RS-422 Interface Converter - DB9 Female to Terminal Block

                  Black Box IC1473A-F-ET Async RS-232 to RS-422 Interface Converter - DB9 Female to Terminal Block

                  For DB9 equipment, if the peripheral operates on the RS-422 signal, use only one DB9 converter. But if the transmitting and receiving equipment only operates on RS-232, use two converters.
                  All provide 115.2-kbps speed for distances up to 4000 feet (1219.2 m).

                  • Converts unbalanced RS-232 signals to balanced RS-422 signals.
                  • The RS-232 side has a DB9 port configured as DCE.
                  • The RS-422 side has a terminal block.
                  • This converter operates under extreme temperatures, making it an appropriate choice for indust

                     

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                    Item #: BBX-IC1473A-F-ET

                    Availability: Usually ships in 3-10 business days

                    Our Price: $94.40

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                  • Contemporary Research ICC1-232 RS-232 TV Controller

                    Contemporary Research ICC1-232 RS-232 TV Controller

                    The ICC1-232 RS-232 TV Controller delivers versatile 1-way control for power, volume, channels, and available control lockout commands, receiving iC-Net network commands over the same broadband coax that carries the CATV channels. Compact in size and price, the ICC1-232 features discrete power control, channel tuning, volume control, and local control lockout. Tuning options include analog and HDTV format channels, as well as AV inputs.

                    High-speed 1-way control is possible through the same RF ca

                       

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                      Item #: CRC-ICC1-232

                      Availability: Direct Ship From Manufacturer

                      Our Price: $300.00

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                    • Burst GPI-10 GPI to RS232 Converter

                      Burst GPI-10 GPI to RS232 Converter

                      The GPI-10 generates an RS-232 output whenever a GPI switch is closed. Up to ten RS-232 strings can be programmed at the factory, corresponding to the ten GPI input connectors. The GPI-10K has the same features as the GPI-10 plus built-in keypad. See Specifications below for four standard firmware versions. Custom programming of the firmware is also available.

                      Standard Firmware for GPI-10
                      Version A: Used to communicate with our MCG-2 Micro Character Generator. This firmware will call selected page



                         

                        3 Models Available

                        Item #: GPI-10

                        Availability: Direct Ship From Manufacturer

                        Our Price: $241.35

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                      • Hall Research CNT-IP-2 Web Enabled Serial Controller

                        Hall Research CNT-IP-2 Web Enabled Serial Controller

                        The CNT-IP-2 is the latest addition to Hall Research’s Switch-Cat room control product line. It offers true flexibility in access and control making it ideal for K-12 classrooms, conference rooms and more. The CNT-IP-2 devices allow for up to 1 or more RS232 devices to be remotely controlled across a compatible LAN network using a web browser.

                        The CNT-IP-2 consists of a compact modular enclosure with (2) RS232 ports, (1) IP RJ-45 network port and a +5 vDC power connector. All models come with th

                             

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                            Item #: HRT-CNT-IP-2

                            Availability: Direct Ship From Manufacturer

                            Our Price: $351.50

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                          • Hall Research HR-16P 16-Channel Programmable Serial Device

                            Hall Research HR-16P 16-Channel Programmable Serial Device

                            The HR-16P is a programmable RS-232 serial device designed to control any device with a serial port based on sensing level changes (open-to-close and close-to-open, or digital high to low and vice versa).

                            The HR-16P has 16 discrete inputs that sense a DC voltage level or contact closure (see figure below for input terminal configuration). It detects both "low-to-high" and "high-to-low" transitions of these discrete inputs and issues corresponding commands out the serial port of the HR-16P to the

                               

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                              Item #: HRT-HR-16P

                              Availability: Direct Ship From Manufacturer

                              Our Price: $255.55

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                            • Hall Research HR-4P Programmable RS-232 Serial Device with Digital I/O - IR Remote Playback

                              Hall Research HR-4P Programmable RS-232 Serial Device with Digital I/O - IR Remote Playback

                              The Model HR-4P is a programmable RS-232 device designed for control & automation of a Projector, LCD, or any other device with serial or IR port.

                              The unit has 4 configurable I/O lines that can be defined individually to act as input or output. When configured as input, they sense contact closures or Voltage levels (user defined as pull-up or pull-down). Upon detecting "Low-to-High" or "High-to-Low" transitions the unit can issue programmed Serial RS-232 Commands, as well as IR commands for contr

                                   

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                                  Item #: HRT-HR-4P

                                  Availability: In Stock

                                  Our Price: $199.50

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                                • IO Gear GUC232A USB PDA Serial Adapter

                                  IO Gear GUC232A USB PDA Serial Adapter

                                  The USB PDA/Serial Adapter (GUC232A) provides you with an external serial (DB- 9 male) Plug-n-Play connection for use with computers, notebooks, and hand held computing devices that support USB. The PDA/USB Serial Adapter has a standard type A USB plug.

                                  This USB PDA/Serial Adapter provides PDAs, digital cameras, modems, and ISDN terminal adapters with high quality serial connections at a data transfer rate of over 115Kbps. This makes the USB interface transparent to serial peripherals, allowing t

                                   

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                                  Item #: IOG-GUC232A

                                  Availability: Usually ships in 3-10 business days

                                  Our Price: $29.95

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                                • JLCooper eBOX Quad Serial to Ethernet Interface

                                  JLCooper eBOX Quad Serial to Ethernet Interface

                                  eBOX is a 10/100BASE-T (Ethernet) to Quad RS-232/422 (9-Pin) and GPI hard- ware interface.

                                  It acts as a portal for controlling devices across your facility or across the world.

                                  It eliminates information bottlenecks and overcomes distance limitations typically inherent to serial communication.

                                  It simplifies long distance cabling by using IP addressable, point-to-point architecture to send control messages over existing 10/100 BASE-T wiring.

                                  eBOX features four serial connectors, activity LED's, 24 GPI







                                   

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                                  Item #: JLC-EBOX

                                  Availability: In Stock

                                  Our Price: $791.90

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                                • JLCooper EBOX GPI8 Ethernet/GPI Interface- 8 Opto-Isolated Inputs/8 Relay Output

                                  JLCooper EBOX GPI8 Ethernet/GPI Interface- 8 Opto-Isolated Inputs/8 Relay Output

                                  eBOX GPI8 is an uncomplicated Ethernet/GPI interface for users who need GPI functions, but have no need for the advanced serial over ethernet capabilities offered by the original eBOX. It provides the added benefit of including the eBOX IO functionality (with Opto-Isolated Inputs and Relay Outputs) and it's sBOX compatible.

                                  eBOX GPI8 simplifies long distance cabling by using IP addressable, point-to-point architecture to send control messages over existing 10/100 BASE-T wiring. It's ideal for LAN

                                   

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                                  Item #: JLC-EBOX-GPI8

                                  Availability: Usually ships in 3-10 business days

                                  Our Price: $749.95

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                                • Kramer FC-132ETH 32 Port Serial Control Gateway and Advanced Serial Communication Matrix

                                  Kramer FC-132ETH 32 Port Serial Control Gateway and Advanced Serial Communication Matrix

                                  The FC?132ETH is an advanced Ethernet control gateway and serial communication matrix, capable of plug and play deployment over a customer Ethernet LAN. Serving as an advanced serial communication matrix, the FC?132ETH has 32 RS?232 and one RS?232/RS?485 output ports. Serial communication data is switchable to one or more of the eight RS?232 input ports. This can be done according to local control of panel buttons or RS?232 control port, or remote control via Ethernet port control protocol or we

                                       

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                                      Item #: KR-FC-132ETH

                                      Availability: Direct Ship From Manufacturer

                                      Our Price: $1,436.00

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                                    • Kramer FC-24ETH 4 Port Serial Control Gateway

                                      Kramer FC-24ETH 4 Port Serial Control Gateway

                                      The FC?24ETH is an Ethernet control gateway, capable of plug and play deployment over a customer Ethernet LAN for remote control of customer controlled devices via bidirectional RS?232 or RS?485 serial control connections. Multiple control clients can be IP?connected to the FC?24ETH control gateway for concurrent control of two RS?232 or RS?485 controllable devices, such as AV scalers, video displays, and audio amplifiers.

                                      • 1 RS-485 or RS-232 Selectable Bidirectional Control Port - Controls a devi

                                         

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                                        Item #: KR-FC-24ETH

                                        Availability: Direct Ship From Manufacturer

                                        Our Price: $336.00

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                                      • Kramer FC-50 RS-232 Range Extender

                                        Kramer FC-50 RS-232 Range Extender

                                        The FC-50 is a bidirectional range extender for RS-232 signals. The unit converts an RS-232 signal to a twisted pair signal and sends it to a second FC-50 that converts the twisted pair signal back into an RS-232 signal.

                                        • Bidirectional RS-232 Operation.
                                        • Operation - 2 units are required.
                                        • Mode Selection - Connects the RS-232 port to a PC or a controlled device.
                                        • Mode Indicator LED - Red for device and green for PC.
                                        • System Range - Up to 1000m (3300ft).
                                        • Cable - UTP (unshielded twisted pair) or STP (shielde

                                           

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                                          Item #: KR-FC-50

                                          Availability: Direct Ship From Manufacturer

                                          Our Price: $156.00

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                                        • Kramer FC-54P 4-Port Multi-Function Serial/IR & GPIO/Relay PoE Control Gateway

                                          Kramer FC-54P 4-Port Multi-Function Serial/IR & GPIO/Relay PoE Control Gateway

                                          Kramer's FC-54P is a multifunction PoE control gateway, capable of plug and play deployment over a customer Ethernet LAN for GPI/O, relay, IR and serial control of customer devices. Multiple control clients can be IPconnected to the FC-54P control gateway for concurrent control of devices such as projectors, displays, DVD players, lights, shades and screens.

                                          • 4 selectable multi-function ports, as either 4 GPI/O or 4 relay and 2 bidirectional RS-232 (one as RS-485 too) or 4 IR emitter
                                          • 1 Ethernet por

                                             

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                                            Item #: KR-FC-54P

                                            Availability: Usually ships in 3-10 business days

                                            Our Price: $536.00

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                                          • Kramer FC-7 2-Port Multi-Function GPIO/Relay Control Gateway

                                            Kramer FC-7 2-Port Multi-Function GPIO/Relay Control Gateway

                                            Kramer's FC-7 is a GPIO/relay multi-function control gateway, capable of plug and play deployment over a customer Ethernet LAN for remote GPI/O and relay control of customer devices. Multiple control clients can be IP-connected to the FC-7 control gateway for concurrent control of devices such as lights, shades and screens.

                                            • Compact, Piggy-back Installation
                                            • Two Dual-Function Ports
                                            • Up to 40 IP Connected Clients
                                            • Remote IP-Based Control
                                            • Easy Plug-and-Play IP Installation
                                            • Power Options - USB, optional PS

                                               

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                                              Item #: KR-FC-7

                                              Availability: Usually ships in 3-10 business days

                                              Our Price: $280.00

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                                            • Kramer FC-7P 2-Port Multi-Function GPIO/Relay PoE Control Gateway

                                              Kramer FC-7P 2-Port Multi-Function GPIO/Relay PoE Control Gateway

                                              The FC-7P is a GPIO/relay multi-function control gateway with Power over Ethernet, capable of plug and play deployment over a customer Ethernet LAN for remote GPI/O and relay control of customer devices. Multiple control clients can be IP-connected to the FC-7P control gateway for concurrent control of devices such as lights, shades and screens.

                                              • 2 multi-function ports, each selectable as either 2 GPI/O or 2 relays
                                              • 1 Ethernet port
                                              • Power over Ethernet
                                              • Built-in control & support Web pages
                                              • Size- TOOLS -

                                                 

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                                                Item #: KR-FC-7P

                                                Availability: Usually ships in 3-10 business days

                                                Our Price: $328.00

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                                              • Kramer NT-52P 2-Port Universal I/O PoE Control Gateway

                                                Kramer NT-52P 2-Port Universal I/O PoE Control Gateway

                                                The NT-52P is a PoE-powered control gateway, capable of plug and play deployment over customer Ethernet LAN for remote control of customer controlled devices via two universal I/O ports. The ports can be configured as bidirectional RS-232, RS-232 cross, RS-485, IR, GPI/O or relay control connections. Multiple control clients can be IP-connected to the NT-52P control gateway for concurrent control of devices, such as AV scalers, video displays, audio amplifiers, DVD players, sensors, screens, sha

                                                     

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                                                    Item #: KR-NT-52P

                                                    Availability: Usually ships in 3-10 business days

                                                    Our Price: $496.00

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                                                    RS232 & RS422 Interface Products

                                                    RS-232 & RS422 are a standard communication protocol for linking a computer and its peripheral devices to allow serial data exchange and RS232 & RS422 Interface Products are needed to make this happen. Both RS232 & RS422 define the voltage for the path used for data exchange between the devices. Handshaking is a process in which RS232 & RS422 Interface Products sends a signal to establish a connection between the devices before the actual transfer of data. RS232 & RS422 Interface Productshelp to set the parameters of the communication channel established between two pieces of equipment before normal communication begins. Markertek carries a wide variety of RS232 & RS422 Interface Products.

                                                     

                                                     
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