Chapter 2. SAN256N director components
11
• Sys Fan - System Fan LED lights red to indicate when one or more of the cooling fans
has failed.
LCD display
A 16-character alphanumeric LCD display is included on the TCM front panel. This
display is used to show system information, such as:
• Switch name
• IP address
• Status of the Field Replaceable Units (FRUs):
– TFIO blades
– TSW modules
– TCM modules
– Power supply assemblies
– Fans, upper and side assemblies
Ethernet connection
An RJ-45 connector, located on the TCM front panel, provides a 100 Mbps Ethernet
network connection between the SAN256N director and the Enterprise Manager PC.
TFIO 16-port I/O blade
Description
The SAN256N director Fibre Channel I/O blade (TFIO) is a sixteen-port input/output line
card that plugs into a slot in the front of the chassis. The chassis is capable of accepting
up to sixteen TFIO blades, providing a total port count of 256 ports per chassis.
The TFIO blade has 16 Fibre Channel ports to accept IBM certified SFP shortwave
(850nM) and longwave (1310-1550nM) modules. Depending on what devices they are
connected to, the SFP modules can auto negotiate at either 1.0625 Gbps or 2.125
Gbps.
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