Limitation, Installation, Uninstalling | Black Box RS-485, RS-422

Chapter 5: Using Virtual COM

5.1.3 Limitation

The Virtual COM driver enables you to select up to 256 COM ports as Virtual COM ports in a SerialManagerPC. You can select from a list of COM ports from COM1 to COM256.

5.1.4 Installation

Turn off all anti-virus software before beginning the installation. Run the Virtual COM setup file included in the CD to install Virtual COM driver for your operating system.

Select one or two COM ports to become the Virtual COM ports.

5.1.5 Uninstalling

1.From the Windows Start menu, select “Setting,” “Control Panel,” “Add/Remove Programs.”

2.Select “Serial IP”in the list of installed software.

3.Click on the “Add/Remove” button to remove the program; or, from the Windows Start menu, select “Programs,” “Serial IP,” “Uninstall Serial IP.”

5.2Virtual COM Communication 5.2.1 Enable Virtual COM on LES301A

From a Web browser, access the LES301A by typing its IP address, then click on the COM1 link to access the COM1 page. On the top half of the page, click on “TCP Server” and enable Virtual COM by putting a check in front of the “Enable” button, then type in the local port number in the “Local Port” field.

Figure 5-2. Enable VirtualCOM.

Or, you can enable Virtual COM through Telnet configuration by setting COM1 as TCP server (Figure 9-2), and type in the local port number for COM1, then enable Virtual COM as shown in Figure 5-3.

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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.