Network Connections; Connecting Network Devices; Twisted-Pair Devices; Power-Over Ethernet (Poe) Connections - AMX NXA-ENET8-2POE Operation/Reference Manual

Network Connections

Connecting Network Devices

The NXA-ENET8-2POE is designed to be connected to 10, 100, or 1000 Mbps network cards in PCs and
servers, as well as to other switches and hubs.
It may also be connected to remote devices using optional 1000BASE-SX, 1000BASELX, 1000BASE-LH, or
100BASE-FX SFP transceivers.

Twisted-Pair Devices

Each device requires an un-shielded twisted-pair (UTP) cable with RJ-45 connectors at both ends.
Use Category 5, 5e, or 6 cable for 1000BASE-T connections, Category 5 or better for 100BASE-TX
connections, and Category 3 or better for 10BASE-T connections.

Power-Over Ethernet (PoE) Connections

The NXA-ENET8-2POE automatically detects a PoE-compliant device by its authenticated PoE signature and
senses its required load before turning on DC power to the port. This detection mechanism prevents damage to
other network equipment that is not PoE compliant.
Power-over-Ethernet connections work with all existing Category 3, 4, 5, 5e, or 6
network cabling, including patch cables and patch-panels, outlets, and other
connecting hardware, without requiring modification.
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Configuring PoE Settings

Use the Power Over Ethernet Configuration page in the Web Console to set the maximum PoE power
provided to a port, the maximum power budget for the switch (power available to all RJ-45 ports), the port PoE
operating mode, power allocation priority, and the maximum power allocated to each port.
See the Power Over Ethernet section on page 115 for details.
NXA-ENET8-2POE Gigabit Ethernet Layer 2 PoE Switch
The NXA-ENET8-2POE delivers power to a device using the wire pairs in UTP or STP cable
(RJ-45 pins 1, 2, 3, and 6). The switch can provide up to 34.2 W of power continuously on each of
the eight RJ-45 ports. If a device tries to draw more than 34.2 W from a port, an overload condition
occurs and the port disables the power.
The NXA-ENET8-2POE controls the power and data on a port independently. Power can be
requested from a device that already has a data link to the switch. Also, the NXA-ENET8-2POE
can supply power to a device even if the port's data connection has been disabled. The power on a
port is continuously monitored by the NXA-ENET8-2POE and it will be turned off as soon as a
device connection is removed.
Network Connections
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