Components Located on Bottom of FCO | Qualstar 501440 Rev. G

Component	Description

Fibre Channel 0	Small Form Factor Pluggable (SFP) transceiver socket. The receptacle is a 2
	Gbit Fibre Channel SFP transceiver.
SCSI Channel 0 and 1	The SCSI Ultra 160 channels used to attach the TLS medium changer and
	tape drives.
Serial Jumper Connectors	The serial bridge cable provides a serial communication link between the
	FCO and the TLS library. This interface is used to configure the FCO.
Reset Button	The reset button is used to reset the Q-Link processor.
Q-Link 10 BaseT	The Q-Link Ethernet interface connection.
Activity LED	On (green) when the Fibre Channel is active. Off when there is no Fibre
(Fibre Channel)	Channel I/O activity.
Link LED	On (green) when the Fibre Channel link is connected and established.
(Fibre Channel)	Off when the Fibre Channel link is disconnected and/or not established.
Activity Channel 0 &1 LEDs	On (green) when SCSI bus is active or busy.
(SCSI)
Fault LED	Solid on (red) when a fatal error condition is present. This indicator will be on
	during power-on diagnostics, and is extinguished after successful completion
	of the power-on sequence.
Status OK LED	Solid on (yellow) when the FCO is operational.
+5V FCO LED	Solid on (green) when the FCO +5volt power is present.

+5V EXEC LED	Solid on (green) when the Executive PCBA +5volt power is present.

+12V LED	Solid on (green) when the Executive PCBA +12volt power is present.

Link LED	Solid on (green) when the 10BaseT link is connected.
(Q-Link)
Activity LED	On (yellow) when then 10BaseT link is active or busy.
(Q-Link)

Table 6-1 Components Located on Bottom of FCO

501440 Rev. G

6-3