Features
Enterasys A4 Fast Ethernet Switch Hardware Installation Guide 1-3
Features
Stack Connections
The switches have front panel RJ45 ports for connections in a stack configuration. The stacking
cables used for the connections must be standard Category 5 or better UTP cable.
Redundant Power Supply Capability
The A4 has power supply redundancy capability when connected to an optional external
redundant power supply:
• STK-RPS-150PS, a 150 watt DC power supply for redundant power for A4 switches.
If the internal power supply fails, the RPS automatically assumes the role of the internal power
supply without interrupting network traffic. The internal power supply and RPS each have their
own AC power connection, which enables the connection of each power supply to a different AC
power circuit for additional AC power source redundancy.
Management
Management of the switch can be either in-band or out-of-band. In-band remote management is
possible using Telnet, Enterasys Networks’ NetSight
®
management application, or the WebView
application. Out-of-band management is provided through the DB9 Console port connector on the
front panel using a VT100 terminal or a VT100 terminal emulator.
Switch Configuration Using WebView
Enterasys Networks’ HTTP-based Web management application (WebView) is an intuitive web
tool for simple management tasks.
Switch Configuration Using CLI Commands
The CLI commands enable you to perform more complete stackable switch configuration
management tasks.
For CLI command set information and how to configure the module, refer to the Enterasys A4 CLI
Reference.
Standards Compatibility
The 100BASE-T ports are compliant with the following standards and operations:
• IEEE 802.3
• IEEE 802.3u
• IEEE 802.3ab (Stack Ports)
• IEEE 802.3ad
• Full-Duplex operation
In addition to the 100BASE-T standards, the SFP ports are compliant with the following standards
and operations:
• IEEE 802.3z
• IEEE 802.3x Flow Control support for Full-Duplex mode
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