Specifications

Network Planning
8
NXA-ENET8POE Gigabit PoE Ethernet Switch
Installing the NXA-ENET8POE
Selecting a Site
The NXA-ENET8POE can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to
follow the guidelines below when choosing a location. The site should:
Be at the center of all the devices you want to link and near a power outlet.
Be able to maintain its temperature within 0 to 45 °C (32 to 113 °F) and its humidity within 10% to
90%, non-condensing
Provide adequate space (approximately five centimeters or two inches) on all sides for proper air
flow
Be accessible for installing, cabling and maintaining the devices
Allow the status LEDs to be clearly visible
Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures
and other sources of electrical interference, such as radios and transmitters.
Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240
VAC, 50 to 60 Hz, is within 2 m (6.6 feet) of each device and is powered from an independent
circuit breaker. As with any equipment, using a filter or surge suppressor is recommended.
Ethernet Cabling
To ensure proper operation when installing the NXA-ENET8POE into a network, make sure that the current
cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria
against the current installation of your network:
Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45
connectors; Category 3 or better for 10BASE-T, Category 5 or better for 100BASE-TX, and
Category 5, 5e or 6 for 1000BASE-T.
Protection from radio frequency interference emissions
Electrical surge suppression
Separation of electrical wires (switch related or other) and electromagnetic fields from data based
network wiring
Safe connections with no damaged cables, connectors or shields
Installing an Optional SFP Transceiver
The NXA-ENET8POE supports the following optional transceivers:
1000BASE-SX
1000BASE-LX
1000BASE-LH
To install an SFP transceiver, do the following:
1. Consider network and cabling requirements to select an appropriate transceiver type.
2. Insert the transceiver with the optical connector facing outward and the slot connector facing down. Note
that SFP transceivers are keyed so they can only be installed in one orientation.
3. Slide the transceiver into the slot until it clicks into place.
SFP transceivers are hot-swappable. The NXA-ENET8POE does not need to be
powered off before installing or removing a transceiver. However, always first
disconnect the network cable before removing a transceiver.
If an SFP transceiver is installed in the slot and has a valid link on its port, the
associated RJ-45 port is disabled and cannot be used.