SWAN Concentrator Installation and Support Guide

Installing a SWAN Concentrator
SWAN Concentrator Installation and Support Guide—429391-006
2-24
Step 6: Powering on the SWAN Concentrator and
Executing the Power-On Self-Test (POST)
The flowcharts in Figure 2-12 and Figure 2-13 provide a troubleshooting chart you can
follow to verify the following information that is tested as part of the POST:
•
Power supply
•
Fault LEDs
•
Link-integrity LEDs
This information corresponds to the descriptions of the LEDs in Table 2-3.
POST also checks for the presence of the loopback connector on each of the six WAN
ports. If a connector is found, driver and receiver tests for all four WAN interface types
are performed.
POST results can be examined in the OSM Service Connection or the TSM Service
Application.
TX
(transmit)
Green There are two transmit LEDs, one for each Ethernet port. The
transmit LEDs are
•
Flashing when the SWAN concentrator is transmitting data
onto the Ethernet.
•
Off when the SWAN concentrator is not transmitting data onto
the Ethernet.
The transmit LED flashes at either 0, 2.5, 5, or 10 Hz, depending
on the amount of traffic.
Sometimes the transmission of a single short data frame will not
cause the indicator to flash.
RX
(receive)
Green There are two receive LEDs, one for each Ethernet port. The
receive LEDs are
•
Flashing when the SWAN concentrator is receiving data from
the Ethernet.
•
Off when the SWAN concentrator is not receiving data from
the Ethernet.
The receive LED flashes at either 0, 2.5, 5, or 10 Hz, depending
on the amount of traffic.
Sometimes the reception of a single short data frame will not
cause the indicator to flash.
The receive LED flashes whether or not the frame is addressed to
this SWAN concentrator.
Table 2-3. Indicator LEDs (page 3 of 3)
Label Color Meaning