Configuring Users

hotkey-prefix

The prefix that a user types to control the current session. The default value is hex 01, which corresponds to Ctrl-a(^a) (hex value 02 would be Ctrl-b (^b), etc.):

z^a number—To switch from one session to another, press ^a and then the required session number. For example, ^a 2 would switch you to session 2. Pressing ^a 0 will return you to the IOLAN Menu.

z^a n—Display the next session. The current session will remain active. The lowest numbered active session will be displayed.

z^a p—Display the previous session. The current session will remain active. The highest numbered active session will be displayed.

z^a m—To exit a session and return to the IOLAN. You will be returned to where you left off. The session will be left running.

z^a l—(Lowercase L) Locks the line until the user unlocks it. The user is prompted for a password (any password, excluding spaces) and locks the line. Next, the user must retype the password to unlock the line.

z^r—When you switch from a session back to the Menu, the screen may not be redrawn correctly. If this happens, use this command to redraw it properly. This is always Ctrl R, regardless of the Hotkey Prefix.

The User Hotkey Prefix value overrides the Line Hotkey Prefix value. You can use the Hotkey Prefix keys to lock a line only when the line Lock parameter is On.

idle-timer

The amount of time, in seconds, that the Idle Timer will run. Use this timer to close a connection because of inactivity. When the Idle Timer expires, because there has been no exchange of data within the specified time, the IOLAN will close the connection.

The default value is 0 (zero), meaning that the Idle Timer will not expire (the connection is open permanently). The maximum value is 4294967 seconds. The User Idle Timer will override the Line Idle Timer, with the exception of reverse SSH or reverse Telnet sessions.

host-ip

For outbound User Services such as Telnet, Rlogin, or SSH, this is the target host name or IP address. If no IP address is specified, the Host IP value in the Default User configuration will be used. The default is 0.0.0.0. or None.

language

You can specify whether a user will use English or Customlang as the language that appears in the Menu, CLI, or WebManager. The IOLAN supports one custom language that must be downloaded to the IOLAN; otherwise, Customlang defaults to English.

level

The access that a user is allowed:

zAdmin—The admin level user has total access to the IOLAN. You can create more than one admin user account but we recommend that you only have one. They can monitor and configure the IOLAN.

zNormal—The Normal level user has limited access to the IOLAN. Limited CLI commands and Menu access are available with the ability to configure the user’s own configuration settings.

zRestricted—The Restricted level user can only access predefined sessions or access the Easy Port Access menu.

zMenu—The menu level user will only be able to access predefined session or access the Easy Port Access menu. The Easy Port Access allows the user to connect to the accessible line without disconnecting their initial connection to the IOLAN. Does not have any access to CLI commands.

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Perle Systems SDS, MDC manual Hotkey-prefix
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SDS, MDC specifications

Perle Systems is a leading provider of connectivity solutions, renowned for its robustness and reliability in networking hardware. Among its expansive product offerings, the MDC (Multiport Device Converter) and SDS (Serial Device Server) stand out as pivotal solutions for industries requiring seamless data communication and device management.

The Perle MDC serves as a powerful multi-port device converter, providing the ability to connect multiple serial devices to a computer network without needing a separate connection for each device. This is particularly useful in environments with limited computing resources or high device density, such as railways, manufacturing plants, or remote field operations. It is designed to convert serial communication, which is commonly used in legacy devices, into Ethernet/IP or TCP/IP protocols, ensuring that older devices can integrate into modern networks.

Main features of the MDC include its robust design for industrial environments, support for a variety of serial protocols, and multiple device connections. It supports data rates of up to 115200 bps and provides easy monitoring and configuration via a web-based interface. Additionally, the MDC incorporates advanced security features including SSL and SSH encryption, ensuring data integrity and protection against unauthorized access.

On the other hand, the Perle SDS model exemplifies advanced serial device hosting capabilities, allowing users to connect Ethernet networks to serial devices. It acts as a bridge, enabling remote devices to be configured and managed over IP networks. The SDS series is known for its versatility, supporting a range of serial communication protocols, including RS-232, RS-422, and RS-485, making it suitable for various applications such as point-of-sale systems, industrial automation, and remote monitoring.

The SDS boasts several characteristics that enhance its functionality, such as automatic device discovery, real-time monitoring, and local or cloud-based management options. Its feature set also includes traffic management capabilities, allowing the optimization of device communication by controlling the flow of data, which is critical for applications requiring high reliability and low latency.

Both the MDC and SDS benefit from a strong emphasis on ease of deployment and management. They support a range of network topologies, facilitating seamless integration into existing infrastructures. Furthermore, these devices are backed by Perle Systems' reputation for customer support and a commitment to ongoing innovation, ensuring that organizations can rely on these solutions for future growth and technological advancement.
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