BLACKBOX-PD-AS-801/12 PowerDsine High-Power PoE Splitter, 5.5 x 2.5 mm

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BLACKBOX-PD-AS-801/12 PowerDsine High-Power PoE Splitter, 5.5 x 2.5 mm

5249704

商品編號: BLACKBOX-PD-AS-801-12

BLACKBOX-PD-AS-801/12 PowerDsine High-Power PoE Splitter, 5.5 x 2.5 mm

Remote PoE monitoring and configuration, and power for non-PoE devices.

★★★★商品說明★★★★

Description

PowerDsine PoE Splitter, Active Splitter, High-Power Splitter 48 VDC to 12 VDC, 5.5 x 2.5 mm

Quick Facts

Power non-PoE devices over a PoE line.
　

A quick and easy way to integrate PoE with legacy equipment.
　

Further Details

Graphical user interface with iconic representation of remote devices.
　

Real-time remote PoE monitoring and configuration via Secure Web management (SSL), secure SNMP, and Telnet.
　

Separates PoE data and power streams into two lines, which attach to the connected device's Ethernet and power ports.
　

Save in installation costs.

　

Technical Specifications for PowerDsine High-Power PoE Splitter, 5.5 x 2.5 mm:

Data Rates — 10/100 Mbps
Environmental — Operating temperature: +32 to +104 °F (0 to +40 °C);
Operating humidity: Maximum 90%, noncondensing;
Storage temperature: -13 to +185 °F (-25 to +85 °C);
Storage humidity: Maximum 95%, noncondensing;
Altitude: -1000 to 10,000 ft. (-304.8 to 3048 m)
CE Approval — Yes
Connectors — (1) RJ-45 power and data in; (1) RJ-45 data out; (1) Circular connector type HRS RP34 power
Power — Input: 48 VDC nominal;
Output: 12 VDC
Size — 1.75"H x 3.0"W x 4.8"D (3.3 x 7.5 x 12.0 cm)
Warranty — 1 year

　

★★★★商品規格描述★★★★

Black Box Explains...Power over Ethernet (PoE)..

What is PoE?
The seemingly universal network connection, twisted-pair Ethernet cable, has another role to play, providing electrical power to low-wattage electrical devices. Power over Ethernet (PoE) was ratified by the Institute of Electrical and Electronic Engineers (IEEE) in June 2000 as the 802.3af-2003 standard. It defines the specifications for low-level power delivery—roughly 13 watts at 48 VDC—over twisted-pair Ethernet cable to PoE-enabled devices such as IP telephones, wireless access points, Web cameras, and audio speakers.

Recently, the basic 802.3af standard was joined by the IEEE 802.3at PoE standard, ratified on September 11, 2009, which supplies up to 25 watts to larger, more power-hungry devices. 802.3at is backwards compatible with 802.3af.

How does PoE work?
The way it works is simple. Ethernet cable that meets CAT5 (or better) standards consists of four twisted pairs of cable, and PoE sends power over these pairs to PoE-enabled devices. In one method, two wire pairs are used to transmit data, and the remaining two pairs are used for power. In the other method, power and data are sent over the same pair.

When the same pair is used for both power and data, the power and data transmissions don’t interfere with each other. Because electricity and data function at opposite ends of the frequency spectrum, they can travel over the same cable. Electricity has a low frequency of 60 Hz or less, and data transmissions have frequencies that can range from 10 million to 100 million Hz.

Basic structure.
There are two types of devices involved in PoE configurations: Power Sourcing Equipment (PSE) and Powered Devices (PD).

PSEs, which include end-span and mid-span devices, provide power to PDs over the Ethernet cable. An end-span device is often a PoE-enabled network switch that’s designed to supply power directly to the cable from each port. The setup would look something like this:

End-span device → Ethernet with power

A mid-span device is inserted between a non-PoE device and the network, and it supplies power from that juncture. Here is a rough schematic of that setup:

Non-PoE switch → Ethernet without PoE → Mid-span device → Ethernet with power

Power injectors, a third type of PSE, supply power to a specific point on the network while the other network segments remain without power.

PDs are pieces of equipment like surveillance cameras, sensors, wireless access points, and any other devices that operate on PoE.

PoE applications and benefits.
• Use one set of twisted-pair wires for both data and low-wattage appliances.
• In addition to the applications noted above, PoE also works well for video surveillance, building management, retail video kiosks, smart signs, vending machines, and retail point-of-information systems.
• Save money by eliminating the need to run electrical wiring.
• Easily move an appliance with minimal disruption.
• If your LAN is protected from power failure by a UPS, the PoE devices connected to your LAN are also protected from power failure.
　