Agilent Technologies Agilent E5810A Guia do Utilizador Página 111

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Troubleshooting Guidelines
Troubleshooting LAN Interfaces
Hardware Checks
The first step in troubleshooting LAN networks is to check the hardware
setup for all devices connected to the LAN. This table shows some possible
causes and corrective actions.
After you have made the hardware checks and taken corrective actions as
required, again check for normal operation as shown in Checking for Normal
Operation. If normal operation has not been established, go to
Communication Checks
..
Possible Cause(s) Corrective Action(s)
PC Suspended or Network
Interface Card (NIC) not
operational.
Verify that the PC is not in a Suspended
power state. If the lights on the NIC are
ON, the NIC is probably operational.
Ethernet Hub or Switch not
ON or not operational.
Verify that the hub/switch is powered ON.
If the hub/switch lights are ON, the hub/
switch is probably operational.
Instruments are not ON or
are not operational.
Verify that all instruments are powered ON.
If the power-on light is ON, the instrument
is probably operational. Also, check the
NIC lights on the instruments. If the NIC
lights are ON, the hardware LAN
connection to the instrument is OK.
Cables are not properly
connected
Check LAN cable connections between
PC, hub/switch, and instruments. Tighten
connectors or replace cables as required.
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