NEC Express 5800/120Lg, Service Manual

Page: 160 / 204

5-28 Problem Solving
LAN Connector Lamps
Each of the two LAN connectors on the rear panel has two lamps as follows.
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LINK/ACT lamp
The link/ACT lamp indicates the state of each network port normally equipped with the
server. If the power is supplied to the server and the hub and they are correctly
connected with each other, the lamp is lit green (LINK state). If information is
transmitted through a network port, the lamp blinks green (ACT state).
If the lamp is not lit in the LINK state, check the network cable and the cable
connection. If the lamp is not lit still after the checking, the network (LAN) controller
may be defected. Contact your service representative.
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100/10 lamp (LAN1)
The 100/10 lamp indicates whether each of the network ports normally equipped with
the server is operated through the 100BASE-TX or 10BASE-T network interface. If the
lamp is lit amber, the network port is operated through 1000BASE-T. If the lamp is off,
the network port is operated through 10BASE-T.
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1000/100/10 lamp (LAN2)
The 1000/100/10 lamp indicates whether each of the network ports normally equipped
with the server is operated through the 1000BASE-T, 100BASE-TX or 10BASE-T
network interface. If the lamp is lit amber, the network port is operated through
1000BASE-T. If the lamp is lit green, the network port is operated through 100BASE-
TX. If the lamp is off, the network port is operated through 10BASE-T.
LINK/ACT lamp
1000/100/10 lamp
LAN2
LINK/ACT lamp
100/10 lamp
LAN1