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 - the PSE (Power Sourcing Equipment) and 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 802.3at/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 nol draw a minimum current. because it has been unplugged or physically turned off, the PSE shuts down the power to that port Optionally, the standard permits Powered Devices to signal th the PSEs 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 BK-entry MAC address table The switch is targeted at workgroup, department or backbone computing environments
SPECIFICATIONS
| HA PW2026-24P |
| Standard |
IEEE 802 310Base-T Ethernet |
| Compliance |
IEEE 802 3u 100Base-TX Fast Ethernet
IEEE 802 3ab 1000Base-TX Gigabit Ethernet
IEEE 802.3af/at Power over Ethernet
|
| Transfer Rate |
148.800 pps for 100Mbps
1.488.000 pps for 1000Mbps |
| Connector |
10/100TX: 24 × RJ-45 with auto MDI/MDI-X functions.
10/100/1000.2 × RJ-45/SFP Combo
Port 1-24 support PoE injector function |
| PoE pin assignment |
V+ (RJ45 Pin 3, 6), V- (RJ45 Pin 1, 2) |
| MAC Address |
8K MAC address table |
| Switching capacity |
8.8G |
| LED Indicator |
Per port Link/Activity
Per PoE port: PoE
Per unit Power |
| Network Cable |
2-pair UTP Cat. 5e cable (100m).
EIA/TIA-568 100-ohm STP (100M) |
| Dimen sion |
440mm × 200mm × 44mm (W × D × H) |
| Ventilation |
Built'in Noiseless FAN |
| Operating Temp |
0°C to 45°C (32°F to 113°F) |
| Operating Humidity |
10% to 90% (Non-condensing) |
| Power Supply |
Built-in power supply
Input: AC 100-240V 5O/60Hz |
| PoE Power Buget |
370 Watt |
| EMI |
FCC Class A, CE |
