Enterasys A4H124-24, Hardware Installation Manual

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Features
Enterasys A4 Fast Ethernet Switch Hardware Installation Guide 1-3
Figure 1-3 A4 Switch Back Panels
A4H124-24 Back Panel
A4H124-48 Back Panel
A4H124-24P and A4H124-48P Back Panel
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 156 watt DC power supply capable of providing power to a fully-loaded
non-PoE A4 switch. Use with the A4H124-24 and A4H124-48.
• STK-RPS-500PS, a 500 watt DC power supply for redundant PoE power capability. Use with
the A4H124-24P and A4H124-48P
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.
9 AC power input connector 10 Redundant power supply connector