Technical data

Operating the ARN
114200-D Rev 00
3-3
Ethernet 10BASE-T LEDs
Table 3-2
describes the base module Ethernet 10BASE-T LEDs.
Pwr Lights and remains on when the ARN is on and receiving power.
RPS Lights and remains on when the redundant power supply (optional) is
operating.
Fan Lights and remains on if one or more ARN cooling fans stop operating.
Base Lights and remains on when the base module is operating properly.
Flashes slowly to indicate that the module is running its diagnostic
tests. Flashes rapidly to indicate that the module failed its diagnostic
tests.
Adapter1 Lights and remains on when adapter module #1 is operating properly.
Flashes slowly to indicate that the module is running its diagnostic
tests. Flashes rapidly to indicate that the module failed its diagnostic
tests.
Adapter2 Lights and remains on when adapter module #2 is operating properly.
Flashes slowly to indicate that the module is running its diagnostic
tests. Flashes rapidly to indicate that the module failed its diagnostic
tests.
Expansion Lights and remains on when an expansion module is installed and
operating properly. Flashes slowly to indicate that the module is running
its diagnostic tests. Flashes rapidly to indicate that the module failed its
diagnostic tests.
DCM Lights and remains on when an RMON DCM is installed and operating
properly. Flashes slowly to indicate that the module is running its
diagnostic tests. Flashes rapidly to indicate that the module failed its
diagnostic tests.
PCMCIA Lights and remains on when the ARN contains a flash memory card in
its PCMCIA slot.
Table 3-2. Base Module Ethernet 10BASE-T LEDs
LED Meaning
Tx (Transmit) Lights when the Ethernet interface transmits data.
Rx (Receive) Lights when the Ethernet interface receives data.
Cl (Collision) Lights when the Ethernet interface detects a collision.
Table 3-1. Base Module Diagnostic LEDs
(continued)
LED Meaning