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Advantech BB-485CON
€79
Tax excluded
RS-232 to RS-485 Converter
- Convert unbalanced, full-duplex RS-232 to balanced, full-duplex or half-duplex RS-485.
- Extend RS-232 data signals up to 1.2 km (4000 ft).
- 240 kbps baud rate (typical).
- Quick, easy inline installation.
- Power supply required (not included, sold separately).
Terms and Conditions
* Advantech product versions are identified by the last two characters in the product name, with later letters indicating newer versions (e.g., AE, BE, CE, etc.). To see other versions of this product, please click here: Advantech BB-485CON
Model 485CON, RS-232 to RS-485 converter, converts unbalanced, full-duplex RS-232 signals to balanced, full-duplex or half-duplex RS-485 signals. RS-485 is an enhanced version of the RS-422 balanced line standard. It allows multiple drivers and receivers on a two-wire system.
The RS-232 port uses a male DB-25P type of connector with pins 2 (TD input) and 3 (RD output) supported. Protective Ground (pin 1) and Signal Ground (pin 7) are also connected. The RS-485 port uses a female DB-25S type of connector with Send Data outputs on pins 2 and 14, and Receive Data inputs on pins 5 and 17. Protective Ground (pin 1) and Signal Ground (pin 7) are connected through to the RS-232 connector.
The polarity of the two RS-485 lines must be correct. With no data being sent, the RS-232 line should be negative and the RS-485 "A" terminal should be negative with respect to the "B" terminal. If your equipment uses a " " and "-" naming scheme, in most cases the "A" line will be connected to the "-" and the "B" line will be connected to the " ". The RS-485 driver must be enabled when checking the polarity of the output of a RS-485 driver. On this connector, the RTS input (pin 4), on the RS-232 side must be raised to enable the RS-485 driver.
Figure 1 shows how to interconnect two RS-485 converters using two signal wires. The resistors Rt are optional, depending on the line length, baud rate, etc. The resistors should be about the impedance of the line used, which is normally about 120 Ohms each. Termination resistors are installed only at each end of the RS-485 multi-drop network. RTS must be off (low or marking) to receive and on (high or spacing) to transmit. Both RTS’s should not be on at the same time. Although you will not damage anything, the data sent will be garbled. If both RTS lines are off, the line may be floating and random data may appear on the outputs. Your protocol should allow for this if it can happen.
Up to 32 receivers can be driven by any one generator. This allows you to put together large systems with many drop points. The termination resistors should be located at approximately opposite ends of the system.
An external power supply is required (not included, sold separately).
General | Technology | Serial |
Mounting | Inline | |
Power | 12VDC | |
Serial Type | RS-422/485 |
Download
BB-485CON_1921ds20210512232541.pdf
BB-485CON_1921ds20210512232541.pdf
Why Choose Us
- Transparent Purchasing Experience: Upon placing an order, you'll be promptly provided with a comprehensive deposit invoice that clearly outlines the most optimal shipping costs. We maintain transparency by excluding hidden fees and ensuring that shipping costs aren't disguised within the product price. Additionally, we offer a clear estimated delivery timeline. By confirming the deposit invoice, you provide us with the authorization to process your order in accordance with our established delivery terms.
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Guaranteed Quality: We are honored to be certified partners with esteemed brands such as Advantech, Westermo, Elproma, and Korenix. This partnership underscores our commitment to providing you with high-caliber and verified products directly from reputable sources. Please feel free to validate our affiliations on the respective official websites through the provided link.
- Industry-leading Expertise: Our seasoned team brings extensive experience in conceptualizing and executing large-scale industrial projects. We have forged collaborations with notable industrial entities, urban metro systems, and railway sectors. Whether you're undertaking a substantial project or seeking consultation, our specialists stand ready to provide guidance and tailor solutions to your specific needs.
- Timely and Efficient Support: Have queries or require immediate assistance? Our dedicated customer service team is primed to respond with accuracy and expedience, ensuring you receive the information you need without delay.
- Unwavering Commitment to Satisfaction: Our confidence in the quality of our products and services is unwavering. Should any aspect of your experience be less than satisfactory, we are committed to addressing it and finding an optimal solution.