Specifications
Network Planning
7
NXA-ENET8POE Gigabit PoE Ethernet Switch
Application Notes
1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a
workstation, server or another switch). When the switch is connected to a hub, both devices must operate
in half-duplex mode.
2. For network applications that require routing between dissimilar network types, you can attach the switch
directly to a multi-protocol router.
3. As a general rule, the length of fiber optic cable for a single switched link should not exceed:
1000BASE-SX: 550 m (1805 ft) for multimode fiber
1000BASE-LX: 5 km (3.1 miles) for single-mode fiber
1000BASE-LH: 70 km (43 miles) for single-mode fiber
However, power budget constraints must also be considered when calculating the maximum cable length for
your specific environment.
FIG. 5 Making VLAN Connections
R&D
VLAN 1
VLAN 2
Testing
VLAN 3
Finance
Marketing
VLAN 4
Finance
VLAN 3
VLAN
aware
switch
Tagged
Ports
Untagged Ports
VLAN
unaware
switch
Tagged Port
R&D
VLAN 1
VLAN 2
Testing
When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use
untagged ports.










