Installation Instructions

AT-GS950/8, AT-GS950/16, and AT-GS950/24 Switches Installation Guide
21
has not established a link to an end node.
 The twisted pair port automatically changes to the
redundant status mode when an SFP module
establishes a link with an end node.
 A twisted pair port automatically transitions back to the
active status when the link is lost on the SFP module.
 In nearly all cases, a twisted pair port and an SFP
module share the same configuration settings,
including port settings, VLAN assignments, access
control lists, and spanning tree.
 An exception to the shared settings is port speed. If
you disable Auto-Negotiation on a twisted pair port and
set the speed and duplex mode manually, the speed
reverts to Auto-Negotiation when an SFP module
establishes a link with an end node.
LEDs
Table 2 describes the system LEDs.
Table 2. System LEDs
LED State Description
POWER Off Either the switch is not receiving power or
the AC input power is outside the normal
operating range.
Blinking
Green
The switch is in the process of initializing the
management software.
Steady
Green
The input AC power is within the normal
operating range.