Version: 02/02/05 Page 3 of 22
1. Package Contents
•
Juice Box Ethernet Power Hub
•
AC Line Cord (AC Input Units)
•
DC Connector & Pins (DC Input Units)
•
Rack mounting hardware including 2 mounting brackets and 4 black 8/32 by
5/16” flat head screws.
•
Chassis feet for table mounting
•
Juice Box CD ROM
If any of the above items are missing please contact System Engineering International
customer support at 800-
765-4734, or
.
2. Introduction
The Juice Box is a Power over Ethernet, PoE, mid span power hub. It allows a compatible
device, such as a VoIP telephone or Wireless Access Point to receive both signal and power
over the same cable. The Juice Box is fully compliant with the IEEE 802.3af standard but will
also detect and power many legacy devices. Some legacy devices can be connected directly to
the Juice Box while others may need an adapter. Please contact System Engineering
International Technical Support if you need help determining your devices PoE compatibility.
The Juice Box is easy to install and takes only 1U of rack space. A WEB page based interface
simplifies installation and configuration. An SNMP interface allows for continuous monitoring
of port activity.
3.
Power over Ethernet Basics
As the name implies, Power over Ethernet, (PoE), allows the Ethernet cable to carry power as
well as signal to a device. A standard Ethernet cable has 8 conductors. On 10/100 Base T
Ethernet pins 1, 2, 3, and 6 carry the Ethernet signal; pins 4, 5, 7, and 8 are normally unused.
PoE uses the “unused” connections to supply power to compatible devices.
A Power over Ethernet mid span power hub has two RJ45 connectors per port, the DATA
connection and the DATA + POWER connection. The Ethernet signal from the network switch
