Application notes – Milan Technology MIL-SM4804G User Manual
Page 30
Network Planning
2-6
2
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.
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:
• 1000BASE-SX: 550 m (1805 ft) for multimode fiber.
• 1000BASE-LX: 5 km (3.1 miles) for singlemode fiber.
• 1000BASE-LH: 70 km (43.5 miles) for singlemode fiber.
However, power budget constraints must also be considered when calculating
the maximum cable length for your specific environment.
4.
The maximum number of units that can be stacked together are:
• 4 MIL-SM4804G units