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- RS-232 to RS-485 Converter
- Extend RS-232 data signals up to 1.2 km (4,000 ft.)
- Data rate: 115.2 kbps
- Quick, inline installation
- DIP switch selectable RS-422 or RS-485
- RS-232 port power or external 12 Vdc power jack (power supply not included, sold separately)
Model 4WSD9R, a universal serial converter, provides RS-232 to RS-422/RS-485 conversion using either port-power or an external power supply.
Data is converted in both directions. RS-232 Transmit Data is converted to balanced RS-422 or RS-485 Transmit Data. Received RS-422/485 signals are converted to RS-232.
The RS-232 port is a DB9 female connector (DCE) with pins 2(RD), 3(TD), and 5(Signal Ground) supported. Pins 7(RTS) and 8(CTS) are tied together. Pins 6(DSR), 1(DCD), and 4(DTR) are also tied together.
Model 4WSD9R has a DB9 female RS-485 connector.
Automatic Send Data Control - Unlike converters that require programming hardware handshaking signals to control RS-422 or RS-485 operation, Model 4WSD9R provides automatic Send Data Control. No handshaking is required to control the RS-422/485 driver. Operating mode is set via a dipswitch.
In RS-485 mode, the RS-485 driver is enabled by special circuitry which senses the RS-232 TD input. In half-duplex RS-485 mode, the receiver is enabled when not transmitting. For full-duplex operation, the receiver is set as always enabled.
In RS-422 mode, the transmitter and receiver are always enabled.
Port Power via RS-232 - Incoming RS-232 data lines in either the high or low state are used to port power the converter. If two RS-232 output handshake lines are available and the cable run is short, no external power is needed. The more handshake lines available, the more likely the unit can be port powered. If the handshake lines are raised and no termination is used, power efficiency is greatly increased.
External Power Supply - Less than 3 mA is required to operate the converter - plus the load current. If not enough power is available from the RS-232 port, or not enough handshake lines are available, or a larger load current is required, the converter may be powered by an external 12 VDC power supply with a 2.5mm plug (tip positive). A DC jack on the converter supports external power. (Power supply not included, sold separately.)
製品詳細 詳細ダウンロード
- パーツナンバー
- 詳細
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BB-4WSD9R
- Temperature
- Serial Type
- RS-232 Connector
- RS-422/485 Connector
- 0 to 70C
- RS-422/485
- DB9 Female
- DB9 Female
- Serial Converter
- Serial Port Connector Type
- Serial Port Number
- Maximum Serial Transmission Speed
- RS-232 to RS-422/485
- 1 x DB9 Female, 1 x DB9 Female
- 1
- 115.2 Kbps
- Temperature (Operating Range)
- 0 ~ 70°C (32 ~ 158°F)
- Power Input (DC)
- Power Input (Serial)
- 12 VDC
- Port-Powered from RS-232
- Mounting
- Inline
General
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Temperature
BB-4WSD9R 0 to 70C -
Serial Type
BB-4WSD9R RS-422/485 -
RS-232 Connector
BB-4WSD9R DB9 Female -
RS-422/485 Connector
BB-4WSD9R DB9 Female
Serial Communication
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Serial Converter
BB-4WSD9R RS-232 to RS-422/485 -
Serial Port Connector Type
BB-4WSD9R 1 x DB9 Female, 1 x DB9 Female -
Serial Port Number
BB-4WSD9R 1 -
Maximum Serial Transmission Speed
BB-4WSD9R 115.2 Kbps
Environment
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Temperature (Operating Range)
BB-4WSD9R 0 ~ 70°C (32 ~ 158°F)
Power
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Power Input (DC)
BB-4WSD9R 12 VDC -
Power Input (Serial)
BB-4WSD9R Port-Powered from RS-232
Accessory General
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Mounting
BB-4WSD9R Inline
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