Cisco SGE2000 - Cisco - Gigabit Switch Administration Guide

Managing Power-over-Ethernet Devices
Defining PoE Settings
Cisco Small Business SFE/SGE Managed Switches Administration Guide 336
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Managing Power-over-Ethernet Devices
Power-over-Ethernet (PoE) provides power to devices over existing LAN cabling,
without updating or modifying the network infrastructure. Power-over-Ethernet
removes the necessity of placing network devices next to power sources.
Power-over-Ethernet can be used in the following applications:
• IP Phones
• Wireless Access Points
• IP Gateways
• Audio and Video Remote Monitoring
Powered Devices are devices which receive power from the device power
supplies, for example IP phones. Powered Devices are connected to the device
via Ethernet ports. Guard Band protects the device from exceeding the maximum
power level. For example, if 400W is maximum power level, and the Guard Band is
20W, if the total system power consumption exceeds 380W no additional PoE
components can be added. The accumulated PoE components power
consumption is rounded down for display purposes, therefore remove value after
decimal point.
This section contains the following topic:
• Defining PoE Settings
Defining PoE Settings
The PoE Settings Page contains system PoE information for enabling PoE on the
device and monitoring the current power usage.
To configure PoE Settings:

Cisco SGE2000 - Cisco - Gigabit Switch Specifications

General

Form Factor	Rack-mountable
Switching Capacity	48 Gbps
Forwarding Rate	35.7 Mpps
Layer	Layer 2
Power Supply	Internal
Management	Web-based, SNMP, CLI
MAC Address Table Size	8000 entries
VLANs	256
Features	Quality of Service (QoS), IGMP snooping, Port mirroring
Dimensions (W x D x H)	440 x 257 x 44 mm (17.3 x 10.1 x 1.73 in)
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-20 to 70°C (-4 to 158°F)
Relative Humidity	10% to 90% non-condensing
Standards Compliance	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3x