Application Notes - AMX NXA-ENET8-2POE Operation/Reference Manual

Network Planning
When connecting to a switch that does not support IEEE 802.1Q VLAN tags, use
untagged ports.

Application Notes

1.
Full-duplex operation only applies to point-to-point access (such as when a NXA-ENET8-2POE is
attached to a workstation, server, or another switch). When the NXA-ENET8-2POE is connected to a
hub, both devices must operate in half-duplex mode.
2.
Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem.
Otherwise back pressure jamming signals may degrade overall performance for the segment attached to
the hub.
3.
As a general rule the length of fiber optic cable for a single switched link should not exceed:




However, power budget constraints must also be considered when calculating the maximum cable length
for your specific environment.
16
1000BASE-SX: 550 m (1805 ft) for multimode fiber.
1000BASE-LX: 10 km (6.2 miles) for single-mode fiber.
1000BASE-LH: 80 km (50 miles) for single-mode fiber.
100BASE-FX: 20 km (12 miles) for single-mode fiber.
NXA-ENET8-2POE Gigabit Ethernet Layer 2 PoE Switch