EtherHub 1500 System User’s Guide
Alert
Color: Yellow
Label: Alert
Function: Indicates hardware or hub ID setting problems
LED Activity
BLINKING LIGHT
NO LIGHT
Condition
ON
OFF
Indication
Hardware or hub ID setting error has occurred.
No abnormal occurence.
ΦThe Alert LED indicates that the device has encountered a problem in one or more hardware components (e.g., EEPROM checksum error, or Configure button is locked). However, the unit can still function even if the Alert LED is on. It is also used as a diagnostic test LED. Refer to the section on Diagnostic Test LED Indicators later in this chapter for more information.
Utilization
Label (%)
1% 5% 15%
30%
65+%
Color
Green
Amber (yellow)
Red
Function
Indicates percentage utilization of LAN bandwidth.
The Utilization LEDs indicate the percentage of network bandwidth used by valid data. The hub updates this display every 0.5 seconds.
There are 5 LEDs representing the percentage of network utilization. The corresponding LEDs light to show that the percentage utilization of LAN bandwidth has reached this level. When active, these LEDs look like a stereo’s equalizer display.
For example, if network utilization reaches 1%, the LED labeled 1% will light. However, if network utilization rises above 1% (e.g., 30%), the LED labeled 30 and all the other LEDs before it (i.e., 1, 5, and 15) will light in rapid succession.
Hardware Description |
