Avocent SPC420 Oscar interface, Power device, Positive hysteresis, PPP Point to Point Protocol

Appendices 397

OSCAR interface

The OSCAR interface is a tool that is built in to Avocent appliances and allows a user connected to the local KVM port to display and change settings in a KVM switch. The OSCAR interface also allows a local user to connect to target devices.

Power device

An Avocent or supported third party cascade device that allows the remote controlling of target device power.

Positive hysteresis

Positive hysteresis is the unsigned number of counts subtracted from the raw threshold value, which creates the re-arm point for all sensor thresholds that are greater than zero (0). A positive hysteresis value of 0 indicates that any thresholds greater than zero do not contain hysteresis.

PPP(Point to Point Protocol)

PPP is a set of industry-standard framing and authentication protocols included with Windows NT Remote Access Service to ensure interoperability with third party remote access software. PPP negotiates configuration parameters for multiple layers of the OSI (Open Systems Interconnection) model.

SDR repository device

An SDR repository device is the logical management device that provides a sensor data records (SDR) system interface, which in turn, provides a set of SDR storage and retrieval commands.

Serial console appliance

Serial console appliance refers to a unit that allows serial sessions to a target device and is supported by the DSView 3 software. Serial console appliances include the ACS console server, the legacy CCM and CPS appliances and other units supported by plug-ins. The ACS console server is supported by a plug-in; for detailed procedures and what DSView 3 operations the ACS console server supports, see the corresponding plug-in documentation for detailed procedures.

Serial session

A serial session is a type of target device session in which the target device contains a serial connection (typically a Linux server TTY port or a router) and is connected through a serial console appliance. A Telnet Viewer connection exists between the DSView 3 software client and the serial console appliance. The appliance converts the Telnet information to serial information.

Server

A server is a computer or device on a network that manages network resources. For example:

•A file server is a computer and storage device dedicated to storing files. Any user on the network can store files on the server.

•A print server is a computer that manages one or more printers.