Configuring Virtual COM Ports | Black Box RS-422, RS-232, RS-485

Chapter 5: Using Virtual COM

Figure 5-4. Serial/IP configuration.

On the right side of Figure 5-4 is a sample Virtual COM Control Panel window. On the left side is the list of the COM ports that you have selected (in the Select Ports window) for use by the Virtual COMRedirector. If you want to change which ports appear in this list, use the “Select Ports” button.

Each COM port has its own settings. When you click on a COM port, the Control Panel display changes to reflect the settings for that COM port.

NOTE: When you change settings for a COM port, the changes are effective immediately. There is no separate confirmation dialog to confirm or cancel your changes.

5.3 Configuring Virtual COM Ports

Configure each Serial/IP COM port as follows:

1.Select a COM port in the list.

2.For IP Address of Server, enter a numeric IP address for the serial server.

3.For Port Number, enter the TCP port number that the serial server uses to provide its serial ports to the network.

4.For Server Credentials, the default is “No Login Required.” If your serial server does require a login by the Virtual COMRedirector, the Virtual COMRedirector needs to provide a username and/or password every time an application tries to use the serial server.

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		LES301A user manual

RS-422, RS-485, 1-Port 10/100 Device Server, RS-232 specifications

The Black Box IC113C and IC175C are part of a series of versatile RS-485 interface converters designed to facilitate reliable data transmission over long distances. RS-485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems, and these specific Black Box converters exemplify the technology's adaptability and robustness.

The IC113C is an RS-485 to RS-232 converter, providing a seamless transition between these two common serial communication protocols. With a compact design, it boasts an operating temperature range of -40 to 85 degrees Celsius, making it suitable for harsh environmental conditions. Its key feature includes the ability to extend the communication distance up to 4,000 feet, which is ideal for industrial applications where devices may be far apart. Additionally, the IC113C includes built-in surge protection, ensuring that the device can withstand electrical noise and spikes, ultimately increasing the system's reliability.

On the other hand, the Black Box IC175C serves as an RS-485 to USB converter, bridging older serial devices with modern USB interfaces. This converter is critical for users wanting to connect legacy equipment to contemporary computing systems. Featuring a plug-and-play design, the IC175C is easy to install with no external power supply required, as it is powered directly through the USB connection. It also supports data rates up to 115.2 Kbps, ensuring fast and efficient data transfer.

Both models employ differential signaling, which enhances noise immunity and allows for greater transmission distances compared to single-ended communication standards. Furthermore, the converters support multiple nodes on the same bus, accommodating a network of devices without requiring complex wiring schemes.

In summary, the Black Box IC113C and IC175C offer essential features that cater to diverse industrial and commercial applications. With their robust construction, extensive operating ranges, and compatibility with various communication protocols, these converters enhance system interoperability and provide durable solutions for long-distance data communication needs. Whether connecting legacy systems or extending communication capabilities, these devices exemplify reliability and efficiency in modern data transmission technologies.