User guide

Operational Diagnostics
Ethernet Switch Module User Guide Page 5-3
5.2 OPERATIONAL DIAGNOSTICS
Built-in local and remote loopback tests can be used to test individual
ports while the ATX is operational. When in local loopback, a port is
disconnected from its network. The ATX generates loopback packets for
the port, and the port loops the packets back without sending them onto its
network.
Table 5-4 Meaning of 3E02-04 LED Indicators
LED Meaning
COL
Receiver and transmitter active at the same time on 10BASE-T
port and when port enters jabber state (LED flashes)
LNK
10BASE-T port is connected to another device by a cable; both
cable and port are working correctly (LED is turned on)
RX 10BASE-T port is receiving data (LED flashes)
TX 10BASE-T port is transmitting data (LED flashes)
PROC Processor is ready for operation
POWER Module hardware is receiving power
Table 5-5 Meaning of 3E02-08-ATX LED Indicators
LED Meaning
COL
Receiver and transmitter active at the same time on 10BASE-T
port
ACT 10BASE-T port is receiving and transmitting data
LINK
10BASE-T port is connected to another device by a cable; both
cable and port are working correctly (LED is turned on)
PROC Processor is ready for operation
POWER Module hardware is receiving power