Setting Up Lines

Setting Up Lines

Connecting Through the Device Server

When a user connects through the Device Server, that user is authenticated and is usually set up with a User Service that, once authentication is completed successfully, passes the user onto the specified host. Therefore, the Line Service is set to DSLogin and the User Service is set to whatever protocol the user will use to access the host; in this example, the User Service is set to Dir Telnet. When User Service Dir Telnet is selected, the IP address of the HR_Server is specified as the target Host IP.

User Dennis will always have to log into the same server with this configuration.

Dumb Terminal

perle

Dennis	Device Server
Dennis

Network

HR_Server

Line and port is often used interchangeably. They are almost the same, that is, each line has an associated port number (Line 1 is port 10001 by default), so port buffering settings are the same as the buffering settings for the line.

How you set up a line is really determined by the device that is connected to the line. This section goes over some of the common ways a line is used and things that you will want to keep in mind when configuring the line.

Direct/Silent/Reverse Connections

Direct connections bypass the Device Server, enabling the user to log straight into a specific host. A direct connection is recommended where a user logging in to the Device Server is not required. It is also recommended where multiple sessions are not a requirement. Direct connections require user interaction: the message Press return to continue is displayed on the user’s screen and the session to the host is not initiated until Enter is pressed, after which the host login prompt is displayed. The message is redisplayed on logout.

Silent connections are the same as direct connections except that they are permanently established. The host login prompt is displayed on the screen. Logging out redisplays this prompt. Silent connections, unlike direct connections, however, make permanent use of pseudo tty resources and therefore consume host resources even when not in use.

Reverse connections enable a host on the local network to establish a connection through the Device Server port to a serial device.

Configuring the Device Server 37

DS1 specifications

Perle Systems TS2 and DS1 are advanced serial-to-Ethernet devices designed to facilitate seamless integration of serial devices with modern IP networks. These devices serve as crucial tools for businesses looking to enhance their communication capabilities while leveraging existing infrastructure.

One of the standout features of the Perle TS2 and DS1 is their ability to support multiple serial protocols including RS232, RS422, and RS485. This versatile support allows businesses to connect various legacy devices to their networks, ensuring that critical equipment can still communicate effectively in an increasingly digital landscape.

The TS2 model is particularly noted for its dual serial ports, enabling simultaneous communication with multiple devices. This capability is invaluable for applications requiring real-time data transmission, such as remote monitoring and automated control systems. The DS1 model, on the other hand, is designed for single-port use, making it an ideal solution for smaller-scale operations or specific single-device connections.

Both the TS2 and DS1 incorporate advanced features such as configuration through a web interface, which simplifies setup and management. Users can easily access device settings and monitor performance metrics remotely, enhancing operational efficiency. These devices also support various network protocols such as TCP/IP, UDP, and ICMP, ensuring compatibility with a wide range of network architectures.

In terms of security, Perle Systems prioritize user data protection. The TS2 and DS1 offer features including SSL encryption and SSH protection, providing an added layer of security for sensitive information transmitted over the network. This is particularly important for industries where data integrity and security are paramount, such as healthcare and finance.

Additionally, the rugged design of both devices ensures reliable performance even in harsh environments. With extended temperature ratings and robust housing, the TS2 and DS1 can operate in diverse conditions without compromising functionality.

To summarize, the Perle Systems TS2 and DS1 provide a reliable and flexible solution for connecting legacy serial devices to modern networks. With their support for multiple serial protocols, web-based management, robust security features, and rugged design, these devices cater to a variety of industries looking to modernize their communication infrastructure while maintaining existing equipment. Whether for large-scale operations or smaller implementations, the TS2 and DS1 equip businesses with the tools needed for effective serial communication in an IP-driven world.