Introduction; Hardware Description; Front Panel; Led Indicators - Vitek VT-24P370WS Manual

16 port l2 web smart ethernet switch with poe injector

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VT-16P250WS / VT-24P370WS: 16 / 24 Port L2 Web Smart Ethernet 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 - 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 (End-span configuration). or it may be a separate device located between the switch and the

PD (Mid-span 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, the PSE shuts down the power to that port. Optionally, the standard permits Powered Devices

to signal to 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

8K-entry MAC address table. The switch is targeted at workgroup, department or backbone computing

environments.

The front panel consists of LED indicators, reset button & 16/24x10/100 PoE ports + 2x10/100/1000 Uplink ports.

Power LED: The Power LED lights up when the switch is connected to a power source.

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