Installation Manual

Installing S25N and S25V Systems 11
Features
• Dual power supplies:
— S25N: Two 150W AC power supplies (two receptacles; see Figure 3 on page 10) acting in
load-sharing mode.
— S25V: Internal AC (110v/220v auto-detect) and DC (-48V) power supplies (see Figure 2 on
page 10) each capable of 470W, and acting in load-sharing mode. The S25V has built-in support
for 360W Power over Ethernet (PoE) — IEEE 802.3af — through the copper ports, with power
allocation controll available through the CLI. The optional Force10 470W DC Redundant Power
Supply can be attached in current-sharing mode to provide up to 940W (790W of PoE).
• Supports up to 16384 MAC address entries supported with hardware-assisted aging
• Stackable switch features
• 19-inch rack-mountable and standard 1U chassis height
•Fans:
— S25N: Four fans with automatic speed adjustment for temperature changes
— S25V: Five fans with automatic speed adjustment for temperature changes
• Supports 9252-byte jumbo frames
• Back-pressure support at half-duplex, IEEE 802.3x flow control at full duplex
• Extensive LED system with per-port LEDs
• 32MB internal Flash memory
•256MB RAM
Ports
• 24 fixed 10/100/1000 Mbps auto-sensing and auto-MDIX RJ45 ports (The S25V provides up to 15.4W
PoE to each port.)
• Four SFP ports that share port numbers 21–24 with the copper ports and capable of using 10/100/1000
Base-T or 1000 Base-X using auto-media detect
• Console port (see Chapter 5, Installing Ports, on page 37): Supplied with console cable
(straight-through Ethernet copper cable) and terminal adapter (DB-9 to RJ-45)
• Expansion slots that accept any combination of the following optional, high-capacity uplink modules:
10GbE XFP (two ports), 10GbE CX4 (two ports), 12G stacking (two ports) or 24G stacking (one port).
See
Inserting Optional Modules (10-Gigabit or Stacking) on page 19 and Connecting Stack Ports
(optional) on page 27.