6.3 Auxiliary Channel Configuration

An auxiliary channel is provided which allows for handshaking between a QSP-200/300 RS-422/485 port and a peripheral device. This auxiliary channel may be configured in one of two ways:

￿RTS-CTS handshake enabled.

￿handshaking is disabled.

All ports must be configured in the same manner.

6.3.1 Auxiliary Channel: RTS-CTS Handshaking

The RTS-CTS handshake may be enabled so that RTS (Request To Send) is the auxiliary output signal on AuxOut+ and AuxOut- (pins 1 and 6 of the D9 female connector). Similarly, CTS (Clear To Send) is the auxiliary input signal on AuxIn+ and AuxIn- (pins 5 and 9 of the D9 female connector). This configuration is shown below.

16C550

 

RS-422/485

 

Drivers/Receivers

 

UART

 

 

 

 

 

 

 

 

 

DATA OUT

+

TXD

 

Driver

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

DATA IN

 

 

 

+

RXD

 

Receiver

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

AUX OUT

-RTS

 

 

+

 

Driver

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

AUX IN

 

 

 

+

-CTS

 

Receiver

 

 

 

 

 

 

 

 

 

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 5. Auxiliary Channel RTS-CTS Handshaking.

QSP-200/300 User's Manual

36

Page 42
Image 42
Quatech QSP-200/300 user manual Auxiliary Channel Configuration, Auxiliary Channel RTS-CTS Handshaking

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.