If the port is connected but the Port LED is dark, check the following items:
1. The switch and the connected device's power are on or not.
2. The connecting cable is good and with correct type
3. The cable is firmly seated in its connectors in the switch and in the
associated device
4. The connecting device, including any network adapter is well installed
and functioning
LINK; ACT LEDs (For Slide-in slots on the rear panel)
The slide-in slot has a LINK; ACT LED itself. When one slide-in module is well
installed and functioning, the relevant one lights green.
LINK LED ("STACK" port)
The LED lights green, when a management stack is made via the "STACK" port
and negotiates with associated devices successfully.
HUB ID Rotary Switch
All members of the cluster are ranked according to their "HUB ID"(Device ID). There
are eight degrees (0~7) in the rotary switch. The smaller number, the higher degree.
Device with smallest "HUB ID" will be the "Master" device. Then, system
management can perform by the way of the "Master Device".
Attention Every device in the management stack should have a unique
"HUB ID". In the meanwhile, a "HUB ID" which has been
using by a device, reused by another, the management stack
will fail.
RESET Button
The system will reboot when "RESET" button is pressed.
E-13