Fast EtherHub 3500 System User’s Guide
5-2 Hardware Reference
Indicator Panel
The SmartWatch panel includes comprehensive indicators
for monitoring the hub. It displays the status of the network
connections for each port, the hub’s connection to the stack,
and the status of the on-board SNMP agent. (Note that Master
and Backup LEDs are not provided for the Fast EtherHub-12i.)
A quick glance can provide critical information, such as if a
power module has failed or if a problem exists on the network.
The following sections describe the function of each indicator.
Figure 5-2 Indicators for the EtherHub-12mi
Power Indicator
Color: Green
Label: PWR 1 / PWR 2
Function: Indicators for primary and backup power modules.
State Indication
ON Unit is receiving power via indicated module.
OFF Power is disconnected; or module not installed.
BLINKING Power supply module has failed.
Table 5.1 Power Indicator
SmartExtender Module Indicator
Color: Green
Label: SEM
Function: Displays status of the SmartExtender Module.
State Indication
ON Unit is installed and functioning properly.
OFF No module is installed in the expansion slot.
BLINKING Module has failed.
Table 5.2 SmartExtender Module Indicator