Connectivity Rules; 1000Base-T Cable Requirements; 1000 Mbps Gigabit Ethernet Collision Domain - AMX NXA-ENET8-2POE Instruction Manual

Making Fiber Port Connections
FIG. 22
4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid.
The 1000BASE-SX, 1000BASE-LX, 1000BASE-LH fiber optic ports operate at 1 Gbps, full duplex, with auto-negotiation of

flow control.
The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed in the 1000
MBPS Gigabit Ethernet Collision Domain section on page 29.
The 100BASE-FX fiber optic ports operate at 100 Mbps, full duplex, with auto-negotiation of flow control.

The maximum length for fiber cable operating at 100 Mbps is listed in the 100 MBPS Fast Ethernet Collision Domain section
on page 30.

Connectivity Rules

When adding hubs (repeaters) to your network, please follow the connectivity rules listed in the manuals for these products.
However, note that because switches break up the path for connected devices into separate collision domains, you should not
include the switch or connected cabling in your calculations for cascade length involving other devices.

1000BASE-T Cable Requirements

All Category 5 UTP cables that are used for 100BASE-TX connections should also work for 1000BASE-T, providing that all four wire
pairs are connected. However, it is recommended that for all critical connections, or any new cable installations, Category 5e
(enhanced Category 5) or Category 6 cable should be used.
The Category 5e and 6 specifications include test parameters that are only recommendations for Category 5. Therefore, the first
step in preparing existing Category 5 cabling for running 1000BASE-T is a simple test of the cable installation to be sure that it
complies with the IEEE 802.3-2005 standards.

1000 MBPS Gigabit Ethernet Collision Domain

Maximum 1000BASE-T Gigabit Ethernet Cable Length
Cable Type
Category 5, 5e, or 6 100-ohm UTP or STP
Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths
Fiber Size
62.5/125 micron multimode fiber
50/125 micron multimode fiber
Maximum 1000BASE-LX Gigabit Ethernet Cable Length
Fiber Size
9/125 micron single-mode fiber
Maximum 1000BASE-LH Gigabit Ethernet Cable Length
Fiber Size
9/125 micron single-mode fiber
NXA-ENET8-2POE - Instruction Manual
Maximum Cable Length
100 m (328 ft)
Fiber Bandwidth Maximum Cable Length
160 MHz/km 2-220 m (7-722 ft)
200 MHz/km 2-275 m (7-902 ft)
400 MHz/km 2-500 m (7-1641 ft)
500 MHz/km 2-550 m (7-1805 ft)
Fiber Bandwidth Maximum Cable Length
N/A 2 m - 10 km (7 ft - 6.2 miles)
Fiber Bandwidth Maximum Cable Length
N/A 2 m - 80 km (7 ft - 50 miles)
Network Connections
Connector
RJ-45
Connector
LC
LC
LC
LC
Connector
LC
Connector
LC
29