User manual

Making Network Connections
26
NXA-ENET24 Hardware Installation Guide
3. Connect one end of the cable to the LC port on the switch and the other end to the port on the other
device. Since LC connectors are keyed, the cable can be attached in only one orientation.
4. As a connection is made, check the green Link LED on the switch corresponding to the port to be
sure that the connection is valid.
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
802.3ab standards.
FIG. 23 Making Fiber Port Connections
LC fiber
connector
13
14
15 1
6
17
18 19
20
2
1
22
23
2
4
26
L
in
k
/A
c
t
P
o
E
2
5
2
6
P
W
R
D
ia
g
Sta
c
k
in
g
M
o
d
e
P
o
E
/L
in
k
25
13
1
4
23
2
4