Sun Microsystems 280R manual RSC Jumpers, RSC Monitoring

The preconfigured RSC back panel ports provide the following connectors:

■One RJ-45 connector for connecting a Category-5 twisted-pair Ethernet (TPE) cable, see “Reference for the Twisted-Pair Ethernet (TPE) Connector” on page 206

■One standard Personal Computer Memory Card International Association (PCMCIA) modem pop-out RJ-11 connector

All RSC connection ports can be used simultaneously. The modem supports regular asynchronous serial protocol, and can also support the Point-to-Point Protocol (PPP). When running PPP, a standard internet TCP/IP 10-Mbps protocol stack is available over the modem interface.

RSC Jumpers

The following table describes the RSC flash PROM jumper addresses, functions, and settings. Default jumper settings are marked with an asterisk.

Address	Function	Shunt on Pins	Description
J0403	FRU SEEPROM access	P1-P2	Write enable*
		P2-P3	Write protect
J0501	Flash PROM boot selection	P1-P2	Normal booting*
		P2-P3	Not used
J0502	Flash PROM mirror	P1-P2	Not used
		P2-P3	Disable mirror*

Note –Never change RSC card address J0502 default jumper setting, as the RSC card will not boot.

RSC Monitoring

The RSC card contributes significantly to improvements in environmental monitoring. The Sun Fire 280R system RSC monitors the following devices or events:

■Power supplies

■System keyswitch

■System fans

■CPU module(s) temperature(s)

■System ambient temperature

108 Sun Fire 280R Server Owner’s Guide • January 2001