
14 CHAPTER 1: SWITCH 7750 COMPONENTS
Module LEDs The module LEDs show the status of the I/O modules, as described in Tabl e 10.
Power LEDs PWR1, PWR2, and PWR3 LEDs show the status of the power modules, as
described in Tabl e 11.
Fan LED Fan LEDs show the status of the fan frame, as described in Tabl e 12.
Reset Button The reset button resets the entire system.
Fabric 32 Submodules The Fabric 32 provides a slot for one submodule. The Fabric 32 supports the
following submodules:
■4-Port 1000BASE-X-GBIC Submodule (3C16874)
■4-Port 10/100/1000BASE-T Submodule (3C16873)
4-Port 1000BASE-X-GBIC
Submodule
The 4-port 1000BASE-X-GBIC submodule provides four GE full-duplex Ethernet
GBIC ports.
Figure 4 illustrates the 4-port 1000BASE-X-GBIC submodule.
ACTIVE Green — No data is being transmitted.
Green flashing — Data is being transmitted.
Table 9 Ethernet Port LEDs (continued)
LED Description
Tabl e 10 I/O Module LEDs
LED Status description
RUN Green or off — The module failed or has not been inserted.
Green flashing — The module is working normally.
ALM Off — The module is working normally or has not been
inserted.
Green or green flashing — The module failed or is not
working normally.
Tabl e 11 Power LEDs
LED Description
OK Green — The corresponding power module is working
normally.
Off — The corresponding power module is not working or
has not been installed.
FAIL Green — The corresponding power module is not working.
Off — The corresponding power module works normally or
has not been installed.
Tabl e 12 Fan LEDs
LED Description
OK Green — The fan is working normally.
Off — The fan is not working or has not been installed.
FAIL Green — The fan is not working.
Off — The fan is working normally or has not been installed.