Allied Telesis Uplink Module - Manual (Page 7)

Quick Install Guide 7
C613-04022-01 REV H
1. 10/100/1000 Mbps operation is available only if the AT-A39/T Uplink Module is installed in a Rapier
G6, Rapier G6F, Rapier i or AT-8700XL model, otherwise operation is fixed at 1000 Mbps. Early
versions of the AT-A39/T operate at 1000 Mbps only, regardless of the switch model.
1. AT-A40 and AT-A41 Uplink Modules can only be installed in Rapier G6, G6F, Rapier i and
AT-8700XL switches.
Activity Flashing Amber Frames are being transmitted or received
through the port
Off No activity is occurring
Table 2: AT-A39/T LEDs.
LED State Function
Full Dup/Half
Dup/Col Green The port is operating at full-duplex
Amber The port is operating at half-duplex
Flashing amber Collisions are occurring
Off No link is present
Activity Green A 1000 Mbps link is open
Flashing green 1000 Mbps activity is occurring
Amber
1
A 10/100 Mbps link is open
Flashing Amber 1 10/100 Mbps activity is occurring
Off No link is present
Table: 3 AT-A40/SC, AT-A40/MT, AT-A41/SC and AT-A41/MT LEDs
1
.
LED State Function
Activity/Link/Fault Green A link is open and the port is enabled
Flashing green 100 Mbps activity is occurring
Flashing amber
(and lower LED is Off) The link has failed at the remote end
Off No link is present
Full Dup/Half
Dup/Col Green The port is operating at full-duplex
Amber The port is operating at half-duplex
Flashing amber Collisions are occurring
Off No link is present
Both LEDs Alternate flashing of
upper and lower LED,
amber The switch does not support this model
of uplink module
Table 1: AT-A35/SX and AT-A35/LX LEDs.
LED State Function