Agilent Technologies HSSI WanProbe J3916A - Manual (Page 30)

Introduction
Status LEDs
10
Status LEDs
The probe has status LEDs for the base hardware configuration (the 10Base-T/
100Base-TX telemetry interface), for the HSSI WAN interface, and for the
optional Token-Ring telemetry interface. These LEDs are located on the front and
back panels of the probe. (Figure 1-3 on page 11 shows the LEDs on the front of
the porbe and Figure 1-4 on page 12 shows the LEDs on the back of the probe.)
Front Panel LEDs
The ~ Line On, Activity, and Fault LEDs are on the front of the probe.
~ Line On or Power. This green LED is turned on when the probe is receiving
power.
Activity. This green LED is turned on when data is being received from the
Ethernet telemetry network or transmitted by the probe. When flashing, the
frequency shows the amount of traffic. During periods of steady traffic, it may
appear to stay on solid.
Fault. This yellow LED is turned on when the probe needs to be reset, repaired, or
replaced or when new firmware is downloaded. The Fault LED is normally on
during the power-on self-test, but turns off after a successful self-test or when a
cold or warm start is completed.