BVME4000/6000
16
Copyright
1993,1995,1998,2001 BVM Ltd.
5.2.9
LK13 SCSI Termination Disable
Figure 12 LK13 SCSI
Termination Disable Location
This link allows the SCSI bus terminators to be enabled on the BVME4000/6000. This is necessary if
the BVME4000/6000 is at the end of the SCSI bus cable, otherwise the terminators should be
disabled.
LK13
Function
1 & 2 Omitted
#
SCSI bus terminated on BVME4000/6000
1 & 2 Fitted
NO SCSI bus termination on BVME4000/6000
5.2.10 LK18,19 CPU 5/3.3V Selection
Figure 13
LK18,19 CPU
5/3.3V Selection
Location
These are factory set links – when a 68040 series CPU is fitted, 5V is selected, when a 68060 series
CPU is fitted 3.3V is selected. They must all be set in conjunction.
Setting these links incorrectly will cause damage to the CPU device.
LK18,19 (5V/3V)
Function
1 & 2
5 VOLTS SELECTED FOR 68040 SERIES
2 & 3
3.3 VOLTS SELECTED FOR 68060 SERIES
LK13
PROM
PROM
BATTERY
1 2
VME BUS
CONTROLLER
MC68040
OR
MC68060
M3 M2
LK18
IC 2
INTERRUPT
CONTROLLER
ABORT
RESET
LEDS
SERIAL B
3V
5V
1 2 3
1 2 3
LK19