User guide

Maintenance
56
840 USE 115 00 Version 1.0
6.1.7 Collision LED
If the twisted pair cable has not been connected properl
y
, the
Coll
LED will shine
steadil
y
and the
Link
LED will be extin
g
uished.
(
This condition does not occur with
fiber optic modules.
)
Troubleshooting 1.
Make sure the cable has been installed properl
y
and is workin
g
properl
y
.
2.
Verif
y
that the Ethernet hub is functionin
g
properl
y
.
Figure 27 LED Display for Improperly Connected Twisted Pair Cable
Ready
Coll
ETHERNET TCP/IP
Active
140
NOE 211 10
Figure 28 LED Display When Ethernet Collisions Are Occurring
Ready
Link
Run Coll
ETHERNET TCP/IP
Active
140
NOE 211 10