XVME-6700A
USER
’S
MANUAL
Acromag, Inc. Tel: 248-295-0310
- 16 -
http://www.acromag.com
- 16 -
https://www.acromag.com
3.1 Module Hardware Switch Configuration
3.1.1 Core Configuration Switch SW1
Table 3.1.a summarizes the functions, settings, and descriptions for dip
switches SW1-1 thru SW1-4.
Table 3.1.a: Core Configuration Switch SW1
Core Configuration Switch SW1
Position
Function
Switch Setting
Description
1
Front Panel
Reset Button
OFF
No Pushbutton Reset
ON (default)
Front Panel Reset Button
Causes Local Reset
2
ORB GND
OFF (default)
ORB GND Isolated
ON
ORB GND tied to digital
GND
3
BIOS Recovery
OFF (default)
Normal Operation
ON
Restore BIOS Defaults
4
Onboard 3.3V
Regulator
OFF (default)
Auto Enable Onboard 3.3V
Regulator if Not on
Backplane
ON
Force Onboard 3.3V
Regulator On
SW1-1 is used to configure whether the front panel reset switch can be used to
reset the XVME-6700A (and subsequently the whole VME chassis depending
on SW4-6).
SW1-2 is used to isolate ORB GND (the front panel's chassis connection) from
digital ground, if necessary to isolate ground loops.
SW1-3 is reserved and should be left in the OFF position for normal operation.
SW1-4 is used to configure the operation of the onboard 3.3V regulator. When
the switch is OFF the onboard 3.3V regulator is automatically enabled
whenever 3.3V is not detected on the backplane. Setting this switch to ON
forces the onboard 3.3V regulator to be enabled always.