ECN Functions, Features and HW
1553-CNH 160 0787 Uen PA2 2005-09-23
17
Table 1 System and Port Status LEDs
LED Condition Status
System Status
On Green The unit’s internal power supply is operating normally. PWR
Off The unit has no power connected.
On Green The system diagnostic test has completed successfully.
Flashing
Green
The system diagnostic test is in progress.
DIAG
On Red The system diagnostic test has detected a fault in the
Switching unit.
On Red One or both cooling fans have failed. FAN
Off The unit’s cooling fans are operating normally.
Flashing
Green (fast)
ENC self test and boot in progress
(during start)
On Green ENC in normal operation
On Red Error in ENC (Fallback state and when booting)
CTRL
Off ENC not present
10/100 Mbps Ports
On or Flash-
ing Green
Port has established a valid 10 or 100 Mbps network
connection. Flashing indicates activity.
Flashing
Red
Port has detected a power overload or short circuit and
has shut down the power on the port.
1 ~24
(Link/Activity)
Off There is no valid link on the port.
100/1000 Mbps Combo Ports
On or Flash-
ing Green
Port has established a valid 10, 100, or 1000 Mbps
network connection. Flashing indicates activity.
25, 26
(E - RJ-45),
(O - SFP)
Off There is no valid link on the port.
10/100/1000 Mbps Ports
On or Flash-
ing Green
Port has established a valid 10, 100, or 1000 Mbps
network connection. Flashing indicates activity.
Port 27
(Link/Activity)
Off There is no valid link on the port.
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