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A-2
SPARCcenter 2000 System Board Manual—October 1994
A
Caution – Never move the jumper after the battery has been turned on, or data
contained in the NVSIMM will be lost.
A.2 DSBE/S Link Integrity Test Jumper
Set the J0302 jumper (refer to Figure A-2) as required by 10BaseT Ethernet
devices. Sun Microsystems ships the card with the Link Integrity Test enabled.
Note – If the customer chooses to disable the test, it should be disabled both at
the hub and at the DSBE/S card. In the event of “loss of carrier” or “not
responding” problems, check the status of the link enable on both the DSBE/S
SBus card and the hub.
Figure A-2
DSBE/S SBus Card Jumper
To configure the Link Integrity Test jumper:
•
Put the shunt over both pins on the jumper to disable the test.
•
Put the shunt over only one pin of the jumper to enable the test.
!
J0302 jumper
RJ45
10Base-T
SCSI
SBus