SWAN 2 Concentrator Installation and Support Guide

SWAN 2 Concentrator Installation and Support Guide—429593-010
2-32
Power On the SWAN 2 Concentrator and Run the
Power-On Self-Test (POST)
Power
Supply (See
Figure 2-5 on
page 2-33)
Power-on Green Lights when the power supply is receiving power.
Fault Amber Lights when the power supply is not within the
12-volt limit.
LAN BIC
(See
Figure 2-7
on
page 2-34)
(TXD)
(Transmit)
Green Flashes on and off when a SWAN 2 concentrator
is transmitting data from this Ethernet port.
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 does not cause the LED to flash.
(LNK)
(Link integrity)
Green Lights when a link is established with the
Ethernet. There is a LNK indicator for each of
the two Ethernet ports.
(RXD)
(Receive)
Green Flashes on and off when a SWAN 2 concentrator
is receiving RXD data from this Ethernet port.
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 does not cause the LED to flash.
The receive LED flashes whether or not the
frame is addressed to this SWAN 2 concentrator.
(COL)
(Collision)
Green Lights when a collision occurs between a
SWAN 2 concentrator and another station on the
same Ethernet collision domain.
The collision LED flashes at either 0, 2.5, 5, or
10 Hz, depending on the rate of collisions.
Collisions are a normal and expected part of
Ethernet half duplex operation, and they are a
problem only when they reach an excessive
level. Determining what is an excessive number
of collisions is specific to each site. You cannot
tell what is excessive by the LED.
100
(100 Mbits)
Green Lights when a SWAN 2 concentrator is operating
at 100 Mbits speed. This indicator is unlit during
10 Mbps operation.
FD
(Full Duplex)
Green Lights when a SWAN 2 concentrator is
performing a full duplex operation on the
Ethernet connection. The LED is unlit during a
half duplex operation.
Table 2-4. Status LEDs and Their Functions (page2of2)
Location LED Name Color Function