ATTO Technology XstreamCORE FC 7550 Installation And Operation Manual page 7

Fibre Channel Port Activity: A lit green FC port activity LED
indicates FC traffic on the port, and OFF indicates no port
activity.
E 1 7550 C , LED
XHIBIT ONNECTORS
E 2 7550 LED
XHIBIT S ON THE FACEPLATE
S AND POWER RECEPTACLE ON THE CONNECTOR SIDE
.
Fibre Channel Port Speed: A bi-color FC port speed LED is lit
as follows: Yellow = 16Gb/s, Green = 8Gb/s, and OFF = 4Gb/s.
SAS/SATA Device Activity: A lit green LED for each SAS
connector indicates port activity on at least one PHY.
.