3Com 3C16895 7-slot Chassis Fabric 32 Submodules, Module LEDs, Power LEDs, Fan LED, Reset Button

12CHAPTER 1: SWITCH 7750 COMPONENTS

Table 8 Ethernet Port LEDs (continued)

	LED	Description
	ACTIVE	Green — No data is being transmitted or received.
		Green flashing — Data is being transmitted or received.
Module LEDs
	The module LEDs show the status of the I/O modules, as described in Table 9.
	Table 9 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.
Power LEDs
	PWR1, PWR2, and PWR3 LEDs show the status of the power modules, as
	described in Table 10.
	Table 10	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.
Fan LED
	Fan LEDs show the status of the fan frame, as described in Table 11.
	Table 11	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.
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-Port1000BASE-X-GBIC Submodule (3C16874)
	■ 4-Port10/100/1000BASE-T Submodule (3C16873)
4-Port 1000BASE-X-GBIC	The 4-port 1000BASE-X-GBIC submodule provides four GE full-duplex Ethernet
Submodule	GBIC ports.

Figure 4 illustrates the 4-port 1000BASE-X-GBIC submodule.