Hardware Connectivity
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B+B SmartWorx Port - Powered RS-232 to RS-422 Converter - 1 Pack - 1 x RS-232 Serial - 1 x RS-422 Serial
The 422LP9R is a port - powered two - channel RS - 232 to RS - 422 converter. It converts TD and RD RS - 232 lines to balanced RS - 422 signals. The unit is powered from the RS - 232 handshake lines DTR an d RTS. One of these handshake lines must be asserted (high) in order to power the unit (See Table 1). The RS - 422 driver is enabled when RTS is asserted. Therefore, RTS must be asserted in order to transmit data. The RS - 422 receiver is always enabled. If DT R is always asserted and the RTS is used to control the driver, the 422LP9R can be used as a RS - 232 to RS - 485 4 - wire converter. To insure reception, it is recommended that DTR is asserted.
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In order to maximize the amount of power available to the RS - 422 d river, the RS - 232 handshake lines are not looped back (tied together). As a result the following handshake lines will appear as disasserted (low): CTS, DCD, and DSR. Care should be taken to insure that any software being used doesn't require any of these handshake lines be asserted. If existing software requires any of the handshake lines to be asserted, you can loop back the required handshake lines in your cable.$187.90 -
B+B SmartWorx Battery Powered RS-232 to RS-422/485 Converter - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x Terminal Block RS-485 Serial
Model 485BAT3 features power versatility, making it perfect for field testing solutions. It converts unbalanced RS-232 signals to balanced RS-422 or RS-485 signals. RS-485 is an enhanced version of the RS-422 standard, allowing multiple drivers and receivers on a two-wire system.
Learn More$131.63 -
B&B ISO.RS232 TO RS485 DB9 DINRAIL - 1 Pack - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x Terminal Block RS-422/485 Serial
Our industrial RS-232 to RS-422 and RS-485 converters are ideally suited for the automation market and other "control panel" applications. Terminal blocks are used to input the power and data signals. Most offer isolation and are hardened for use in areas exposed to temperature extremes. The EMC and emissions specifications run the gambit from light industrial EN 61000-6-1to heavy industrial EN 61000-6-2 with IEEE 1613. Each product also carries a UL listing or recognition. Check out the specs on each product and select the one best suited for your needs.
Learn More$178.65 -
B+B SmartWorx Optically Isolated RS-232 to RS-422/485 Converter - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x Terminal Block RS-485 Serial
Wide temperature and power ranges make B&B Electronics isolated converters ideal for your harsh duty applications. Automatic Send Data Control, Modbus compatible. The RS-232 side has both a terminal block connector and a DB9 female connector; the RS-485 side has a terminal block. Requires external power supply not included.
Learn More$112.21 -
B&B USB TO SERIAL 1 PORT RS-485, 2 WIRE WITH DB9F - 1 Pack - 1 x Type B USB 2.0 USB Female - 1 x 9-pin DB-9 RS-485 Serial Female
These compact USB to Asynchronous Serial RS-232 and
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RS-485 mini-converters allow you to add a serial port to your USB only PC. They are perfect connecting to a remote device to gather data or upload a program. USB 2.0 compatibility makes installing them on your PC easy. Versions are available with DB9 connectors and Terminal Blocks for quick wiring. We support RS-232, RS-485
(2-Wire) and RS-485 (4-Wire) protocols. Need 5 Volt and 3.3 Volt TTL? We even have a converter for that. Our driver software supports operating systems up to Windows 7 with 32 and 64 bit support.$114.15 -
B+B SmartWorx USB to RS-485 Mini-Converter - 1 x Type B USB 2.0 USB Female - 1 x 9-pin DB-9 RS-485 Serial Female
- Connect RS-485 Devices to your USB Port
- Perfect for Field Service Applications
- Small - Fits easily into any laptop bag
- USB Port Powered
- USB 2.0 (12 Mbps) Compatible
- RS-485 Data rates up to 921.6 Kbps
- Supports Windows 98, ME, 2000, XP, Vista & 7
$114.15