APPENDIX B: SERIAL PORT CONNECTIONS

The next four sections will cover the required serial port connections on the 232SPS2. Each section will list the required connections and the optional connections that some systems may require. Connections to the serial port of the 232SPS2 are made on a female DB-25 connector.

SERIAL TO PARALLEL MODE, HARDWARE HANDSHAKING

The serial port of the 232SPS2 module is wired as a DCE device. For proper operation the following connections must be present:

1.Transmit Data (TD) from the host (DTE) must be connected to Pin #2 on the 232SPS2 module.

2.Data Set Ready (DSR) from the host must be connected to Pin #6 on the 232SPS2 module.

3.Signal Ground (SG) from the host must be connected to Pin #7 on the 232SPS2 module.

If port powering the 232SPS2, these connections are recommended:

4.Request to Send (RTS) from the host must be connected to Pin #4 on the 232SPS2 module.

5.Data Terminal Ready (DTR) from the host must be

connected to Pin #20 on the 232SPS2 module. Some software may require one or more of the following connections:

6.Clear To Send (CTS) from the host should be connected to Pin #5 on the 232SPS2 module.

7.Data Carrier Detect (DCD) from the host should be connected to Pin #8 on the 232SPS2 module.

NOTE: IBM PC’s (or compatible) serial ports and serial printers are both DTE devices. Therefore, a null modem cable (like a serial printer cable!) must be used when connecting a PC’s serial port to a printer. A null modem cable or serial printer cable should not be used to connect to the 232SPS2 (unless your device is a DCE -- such as a modem).

SERIAL TO PARALLEL MODE, SOFTWARE HANDSHAKING

For proper operation the following connections must be present:

1.Transmit Data (TD) from the host (DTE) must be connected to Pin #2 on the 232SPS2 module.

2.Receive Data (RD) from the host (DTE) must be connected to Pin #3 on the 232SPS2 module.

3.Signal Ground (SG) from the host must be

connected to Pin #7 on the 232SPS2 module. If port powering the 232SPS2, these connections are recommended:

4.Request to Send (RTS) from the host must be connected to Pin #4 on the 232SPS2 module.

5.Data Terminal Ready (DTR) from the host must be

connected to Pin #20 on the 232SPS2 module. Some software may require one or more of the following connections:

6.Data Set Ready (DSR) from the host must be connected to Pin #6 on the 232SPS2 module.

7.Clear To Send (CTS) from the host should be connected to Pin #5 on the 232SPS2 module.

8.Data Carrier Detect (DCD) from the host should be connected to Pin #8 on the 232SPS2 module.

NOTE: IBM PC’s (or compatible) serial ports and serial printers are both DTE devices. Therefore, a null modem cable (like a serial printer cable!) must be used when connecting a PC’s serial port to a printer. A null modem cable or serial printer cable should not be used to connect to the 232SPS2 (unless your device is a DCE -- such as a modem).

232SPS2-3903 Manual

Appendix B: Serial Port Connections

B-1

B-2

Appendix B: Serial Port Connections

232SPS2-3903 Manual

B&B Electronics --

PO Box 1040 -- Ottawa, IL 61350

 

 

B&B Electronics -- PO Box 1040 --

Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5104

 

 

PH (815) 433-5100 -- FAX (815) 433-5104

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B&B Electronics 232SPS2 manual Appendix B Serial Port Connections, Serial to Parallel MODE, Hardware Handshaking
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232SPS2 specifications

B&B Electronics 232SPS2 is a versatile, high-performance converter that serves as both a parallel to serial and serial to parallel converter. This dual functionality makes it an essential tool for various communication applications where data transfer between different formats is required. With its compact design and integrated technologies, the 232SPS2 streamlines data communication processes across various systems.

One of the main features of the 232SPS2 is its ability to convert data formats seamlessly. It enables users to bridge the gap between parallel data interfaces found in older hardware and the serial interfaces commonly used in modern devices. This adaptability makes it an ideal choice for industries that rely on legacy systems and need to integrate with new technology without extensive system overhauls.

The 232SPS2 boasts several advanced technologies that enhance its performance and reliability. The device features a robust data rate up to 115.2 kbps, ensuring that it can handle high-speed data transfer requirements. This capability is further complemented by a comprehensive error checking mechanism, which helps in maintaining data integrity during transmission. The compact, rugged design also ensures that it is suitable for industrial environments where durability is crucial.

Another key characteristic of the 232SPS2 is its ease of use. It is designed with user-friendly configurations, allowing for quick setup and operation. The device is equipped with clear indicator LEDs that provide real-time feedback on status and data flow, making diagnostics straightforward for users.

The 232SPS2 supports a wide range of applications, from automation systems to data acquisition, and can interface with multiple devices. Its support for both standard and extended transmission distances provides additional flexibility, making it useful in diverse operational scenarios.

In conclusion, the B&B Electronics 232SPS2 parallel to serial and serial to parallel converter is a highly effective solution for anyone needing to integrate serial and parallel communication systems. With its excellent data transfer speeds, reliability, and user-friendly design, the 232SPS2 stands out as a leading choice for professionals seeking efficient data conversion and communication in their projects. Whether in industrial automation, telecommunications, or data acquisition, this converter demonstrates a perfect blend of technology and practicality.
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