Manualsbrain.com
  1. Manuals
  2. Brands
  3. 3com
  4. 3C16980
  5. User Manual

3com 3C16980 User Manual

Download
Page of 62
14
C
HAPTER
 1: I
NTRODUCING
 
THE
 S
WITCH
 3300
Table 3   LED behavior
LED
Color
Indicates
Port Status LEDs
*
* If your Switch has 24 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 24. If your 
Switch has 12 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 12. For both 
models, ports supplied through an Expansion Module are numbered sequentially from the last 
fixed port on the front of the unit.
Packet
Yellow
Packets are being transmitted/received on the port.
Off
No packets are being transmitted/received on the 
port.
Status
Green
A link is present, and the port is enabled.
Green flashing
A link is present, but the port is disabled.
Off
No link is present.
Expansion Module Port Status LEDs
Packet
Yellow
Packets are being transmitted/received on the 
Expansion Module port(s).
Off
No packets are being transmitted/received on the 
Expansion Module port(s).
Status
Yellow
A valid Expansion Module is installed.
Yellow flashing
An unrecognized Expansion Module is installed.
Off
No Expansion Module is installed.
Unit LEDs
1–8
Green
The Switch forms a stack with other Switch units; 
the LED indicates the position of the Switch in the 
stack and that a link is present. Note that although 
there are eight LEDs, only four Switch units can be 
stacked at present.
Off
The Switch is stand-alone.
Power/Self Test LED
Green
The Switch is powered-up.
Green flashing
The Switch is either downloading software or is 
initializing (which includes running a Power On Self 
Test).
Yellow
The Switch has failed its Power On Self Test.
Off
The Switch is not receiving power.
16980ua.bk  Page 14  Friday, April 30, 1999  9:03 AM