
Extreme Networks Consolidated Hardware Guide 10-19
Installing I/O Modules
The slowly blinking LEDs cycle once per second. The rapidly blinking LEDs cycle twice
a second.
Installing I/O Modules
You can insert I/O modules at any time, without causing disruption of network
services.
To install an I/O module:
1 Select a slot for the module:
• Slots are numbered 1 through 8 in the Alpine 3808 chassis
• Slots are numbered 1 through 4 in the Alpine 3804 chassis
• Slots are numbered 1 through 3 in the Alpine 3802 chassis
Caution: Do not install I/O modules into the top unnumbered slot of the Alpine
3808 or Alpine 3804 chassis; this slot is designated for SMMi modules only. I/O
modules do not fit in the top slot of the Alpine 3808 or Alpine 3804 chassis.
Forceful insertion can damage the I/O module.
WAN port
(1-4)T1/E1
(1)T3
Amber
Amber rapidly blinking
Amber slowly blinking
Green
Alternating green and
amber
Green rapidly blinking
Green slowly blinking
Near-end fault has been detected (for example, no
cable)
Far-end fault has been detected
Physical link is present, but no higher-layer link
(port is misconfigured or disabled)
Physical link is present, higher-layer link is
established, but no traffic is present
Physical link is present, higher-layer link is
established, and traffic is present
Loopback testing mode is in progress
Port is active, but disabled
10/100 port
(5,6)T1/E1
(2,3)T3
Off
Green
Alternating green and
amber
No link is present
Link is present
Traffic is present
Table 10-5: Access I/O Module LEDs (continued)
LED Color Indicates
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