Справочник Пользователя для Enterasys Networks 24-Port

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Mid-Span Power Hub 24-Port User’s Guide 1-1
1
Introduction
Functions and Features
The BL-69524ENT, Enterasys Networks’ 24-port Mid-Span Power Hub, supports 
applications in which AC power is difficult to access, such as VoIP phones, wireless LAN 
access points, or IP network cameras.
The Enterasys 24-port Mid-Span Power Hub acts as a “patch panel” and adds ~48 VDC to 
unused (non-data) wires in standard Category 5, 5e, or 6 Ethernet cable. The power unit 
delivers both data and power over a single standard Ethernet cable.
Main features of the 24-port Mid-Span Power Hub:
Fully hot-swappable module banks
Remote power feeding; powered devices receive power over the Ethernet cable
Centralized power distribution; one powered device can be connected to a single 
in-line unit
IEEE 802.3af standard powering scheme
Acts as a normal patch panel and places ~48 VDC on unused Ethernet pins
Total power available: 15.6 W per port per IEEE specification
Automatic power-control circuitry to detect a powered device before providing 
power
Fused power surge protection
Port Indicators
Each port has its own LEDs, which display the following:
Detect/Power Forwarding (blue)
Power from Chassis (green)
For information on Troubleshooting, refer to