Connector Adapters
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B+B SmartWorx Serial RS-232 To RS-485 Converter - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x RJ-11 Phone
The 485SD9RJ is a port-powered, half-duplex RS-232 to RS-485 converter with send data control. The unit converts TD and RD RS-232 lines to balanced RS-485 signals and supports two-wire RS-485 communications only. The converter is powered from the RS-232 handshake lines, RTS, CTS and DTR, DSR, CD. The handshake lines are looped back on each other and can be in either state. No handshake change is necessary so no software is required to control the lines. The RS-485 driver is enabled with each bit of data. The RS-485 receiver is disabled when the driver is enabled and is enabled when the driver is disabled. This prevents data from being echoed back into the RS-232 device. The RS-232 side has a DB-9 female connector. The RS-485 side has a six-position RJ11 connector.
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B&B PT PWRD 9PIN 232/485 CONV W/SD - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x RS-485 Terminal Block - 1
The 485SD9TB is a port-powered two-channel RS-232 to RS-485 converter. It converts the TD and RD RS-232 lines to balanced half-duplex RS-485 signals. The unit is powered from the RS-232 data and handshake lines whether the lines are high or low. An external power supply can be connected to two terminals on the RS-485 connector if no handshake lines are available. The 485SD9TB has a DB-9 female connector on the RS-232 side and a terminal block connector on the RS-485 side.
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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 -
Advantech ULI-351DK - USB to RS-485 4 Wire (DB9 Female) Converter Locked Serial Number - 1 x DB-9 RS-485 Serial - Female - 1 x USB 2.0 Type B - Female
Advantech ULI-351DK - USB to RS-485 4 Wire (DB9 Female) Converter Locked Serial Number - 1 x DB-9 RS-485 Serial - Female - 1 x USB 2.0 Type B - Female Learn More$114.15 -
B&B 9PIN 232/485 ISOL CON W/TB&LED - 1 x 9-pin DB-9 RS-232 Serial Female - 1 x RS-485 Terminal Block - 1
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$142.93 -
B+B SmartWorx RS-232 to RS-485 Converter - 1 x 25-pin DB-25 RS-232 Serial Female - 1 x Terminal Block RS-485 Serial
The 485TBLED converts unbalanced, full-duplex RS-232 signals to balanced, full or half-duplex RS-422 or RS-485 signals. RS-485 is an enhanced version of the RS-422 Standard. It allows multiple drivers and receivers on a two-wire or four-wire system.
The RS-232 port, configured as a DCE port, has a female DB25 connector with pins 2 (TD input), 3 (RD output), and 7 (Signal Ground) supported. Pins 4 (RTS) and 5 (CTS) are tied together, and pins 6 (DSR), 8 (CD), and 20 (DTR) are also tied together. Pins 1 (Frame Ground) and 7 (Signal Ground) are connected straight through to the RS-485 terminal blocks. The RS-485 terminal blocks support Transmit Data (A-) and (B+), Receive Data (A-) and (B+), Frame Ground, Signal Ground, and +12 VDC input. See Schematic.
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