Installation Guide
7
SFP Ports
The 12-port 1000BASE-X expansion module, model AT-A61, features the
following:
■
two rows of 6 SFP ports
■
support for hot-swappable SFP modules
■
status LEDs
■
two 16MByte DDR-SDRAM for packet buffering
■
cable fault detection and distance-to-fault diagnostics for copper SFP ports
(see the
Test Facility
chapter in the Software Reference for the switch)
Front view AT-A61
The following LEDs report operations on AT-A61 expansion modules.
LED
State
Description
L/A
(Link Activity)
Green
An SFP transceiver is installed and a link has
been established.
Green flashing
An SFP transceiver is installed and link
activity is occurring.
Amber
An SFP transceiver is installed but a link has
not been established.
Amber flashing
An SFP is installed but there is a transmission
fault.
1 2 3 4 5 6 7 8 9 10 11
12
PORTS 1-12
LINK
SFP
ACT
INSTALLED
FAULT
AT
-A
6
1
