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USER MANUAL 

 

Part Number: P3POE8-30   

8 Port 10/100/1000 Base-TX 8 PoE Switch 

 

INTRODUCTION 

Power-over-Ethernet (PoE) eliminates the need to run DC power to other devices on a wired LAN. Using a 
Power-over-Ethernet system, installers need to run only a single Category 5 Ethernet cable that carries both 
power and data to each device. This allows greater flexibility in the locating of network devices and, in many 
cases, significantly decreases installation costs. 
 
 There are two system components in PoE: 1. The PSE (Power Sourcing Equipment) and 2. The PD (Powered 
Device). The IEEE 802.3af/at specification defines PSE as a device that inserts power onto an Ethernet cable. 
The PSE may be located at the switch (Endspan configuration). or it may be a separate device located between 
the switch and the PD (Midspan configuration). The PD is the natural termination of this link, receiving the 
power, and could be an IP phone, a WLAN access point, or any other IP device that requires power. The 
current is transmitted over two of the four twisted pairs of wires in a Category-5 cable.  
 
Power-over-Ethernet follows the IEEE 802.3af/at specification and is completely compatible with existing 
Ethernet switches and networked devices. Because the Power Sourcing Equipment (PSE) tests whether a 
networked device is PoE-capable, power is never transmitted unless a Powered Device is at the other end of 
the cable. It also continues to monitor the channel. If the Powered Device does not draw a minimum current 
because it has been unplugged or physically turned off, then the PSE shuts down the power to that port. The 
standard permits Powered Devices to signal the PSEs as to exactly how much power they need.  
 
The PoE switch is a multi-port fast ethernet switch that can be used to build high-performance switched 
workgroup networks. This switch is a store-and-forward device that offers low latency for high-speed 
networking. It also features a “store-and-forward” switching scheme that allows the switch to auto-learn and 
store source addresses in a 1K-entry MAC address table. The switch is targeted at workgroup, department or 
backbone computing environments. 
 

 
 
 
 
 

Summary of Contents for P3POE8-30

Page 1: ...power The current is transmitted over two of the four twisted pairs of wires in a Category 5 cable Power over Ethernet follows the IEEE 802 3af at specification and is completely compatible with existing Ethernet switches and networked devices Because the Power Sourcing Equipment PSE tests whether a networked device is PoE capable power is never transmitted unless a Powered Device is at the other ...

Page 2: ... indicators RJ 45 Ports Auto MDI MDIX This product features Auto sensing ports of 10 100 N way for 10Base T or 100Base TX connections In general MDI means connecting to another Hub or Switch while MDIX means connecting to a workstation or PC Therefore Auto MDI MDIX means that you can connect to another Switch or workstation without changing pin to pin or crossover cabling All of these ports can su...

Page 3: ... of networked topology which are used PoE switch is designed as a segment switch that has a large address table and high performance to deal with interconnecting networking segments PC workstations and servers can communicate with each other by directly connecting with the PoE switch The switch automatically learns nodes addresses which are subsequently used to filter and forward all traffic based...

Page 4: ...00Mpbs connections or 100Ω Category 5e above cable for 1000Mbps connections Also be sure that length of any twisted pair connection does not exceed 100 meters 328 feet We suggest using Category 5e cable when connection to power a device Improper Network Topologies It is important to make sure that you have a valid network topology Common topology faults include excessive cable length and too many ...

Page 5: ...C 45 C Operating Humidity 10 90 Non Condensing Power Supply Built in Power Supply Input AC100 240VAC 50 60 Hz Power Consumption 250W EMI FCC Class B CE FCC STATEMENT This equipment has been tested and found to comply with the limits with a Class B device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a commercial inst...

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