METRObility Optical Systems CenturyStack 8112-01-M, Installation And User Manual

Page: 13 / 132

Introduction 13
LED Indication
The hub’s LEDs indicate status information for the device, its ports for
both segments (10Mbps and 100Mbps), and switch status.
LED Indicators 12 Port
CenturyStack
®
8124-01-S
Power
100M
Collision
Forward
Int.
Switch
Ext.
Switch
Link/RX
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
ID
10M
CenturyStack
®
8112-01-S
Power
100M
Collision
Forward
Int.
Switch
Ext.
Switch
Link/RX
1 2 3 4 5 6 7 8 8 10 11 12
ID
10M
®
®
LED Indicators 24 Port
• Power: The Power LED is on when the power cable is
plugged into the hub and a wall socket.
• Link/Rx: The Link/Rx LED is on for each connected port
and blinks for ports receiving transmissions.
• Collision: Collision LEDs indicate collision for either
segment (10Mbps and 100Mbps). If there is collision in a
segment the LED for that segment is on.
• Forward: Packet forwarding is active via the switch module
connecting both 10Mbps and 100Mbps domains. Forward
LED indicates the packet forward status through the switch
modules. Forward for both segments (10Mbps and
100Mbps) is indicated in the table on the next page.