5.1 Command Line Options

The QSP-200/300 Client Driver for OS/2 supports two methods of configuration: using "system assigned" resources and using "user assigned" resources. Both options provide full PCMCIA compliance and functionality (including "Hot-swapping") but each has some advantages and disadvantages as discussed in the following sections.

5.1.1 Configuring With "System Assigned" Resources

Allowing the OS/2 Plug-and-Play system to assign the hardware resources to the QSP-200/300 is the ideal choice when only OS/2 programs will access the serial ports. When configuring the hardware, the user simply specifies a list of COM port numbers. When a QSP-200/300 is inserted into a PCMCIA socket, the client driver will configure the card as a series of COM ports, starting with the lowest available port number in the list.

Configuring a QSP-200/300 with system assigned resources can be a problem, however, if DOS and/or Windows applications will be accessing the serial ports. This is because most DOS applications write directly to the communications hardware and the Windows' Control Panel also wants to know the hardware configuration of the serial ports. In these cases, the user may want to configure the QSP-200/300 with "user assigned" resources.

Example 1

DEVICE=C:\QSP-200\QSP200.SYS COM3

In example 1, the Client Driver will attempt to configure the QSP-200/300 as COM3 through COM6. If COM3, 4, 5, or 6 already exists in the system, the QSP-200/300 will not be configured. Furthermore, only one QSP-200/300 can be installed in this system.

Example 2

DEVICE=C:\QSP-200\QSP200.SYS COM7 COM3

In example 2, the Client Driver will attempt to configure the QSP-200/300 as COM3 through COM6. If COM3, 4, 5, or 6 already exists in the system, the Client Driver will attempt to configure the QSP-200/300 as COM7 through COM10. If COM7, 8, 9, or 10 already exist in the system, the QSP-200/300 will not be configured. Up to two QSP-200/300s can be installed in this system.

QSP-200/300 User's Manual

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Quatech QSP-200/300 user manual Command Line Options, Configuring With System Assigned Resources

QSP-200/300 specifications

Quatech QSP-200/300 is a robust series of serial device servers designed to facilitate seamless communication between legacy serial devices and modern Ethernet networks. These innovative solutions are engineered for industries that require reliable connection to serial peripherals, making them ideal for a range of applications including industrial automation, point-of-sale systems, and equipment monitoring.

One of the standout features of the QSP-200/300 series is its dual-port and quad-port configurations, which allow users to connect multiple serial devices simultaneously. This multi-port capability not only enhances connectivity options but also streamlines operations by reducing cabling complexity. Each model typically supports RS-232, RS-422, and RS-485 serial interfaces, catering to a wide array of serial devices.

The QSP series employs advanced technologies to ensure high performance and reliability. Utilizing a powerful ARM-based processor, these device servers can handle multiple data streams without compromising speed or efficiency. The QSP-200/300 also incorporates Ethernet technologies such as TCP/IP, UDP, and HTTP, ensuring versatile networking and easy integration into existing infrastructures.

Security is another crucial aspect of the QSP-200/300 series. Equipped with features like SSL/TLS encryption, the device servers offer secure data transmission, making them suitable for environments where sensitive information is processed. Furthermore, the device supports a variety of network protocols, including DHCP and Static IP, allowing for flexible deployment options in diverse network environments.

The installation of the QSP-200/300 is notably user-friendly, with a web-based interface that simplifies setup and configuration. Additionally, the units are designed for durability and longevity, built to withstand harsh industrial conditions with operating temperature ranges from -40°C to +70°C.

In summary, the Quatech QSP-200/300 series is a feature-rich solution that addresses the need for reliable serial-to-Ethernet conversion. Its multi-port capabilities, advanced processing technology, strong security features, and ease of installation position it as an optimal choice for organizations looking to modernize their connectivity solutions without discarding existing legacy devices.