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Appendix C Advanced Hardware Configuration Settings
VXI-1394 User Manual for Windows C-12 ni.com
Trigger Input Termination
Located within the group of CLK10 switches is switch S4, which controls
whether to put a 50 Ω termination on the external trigger input SMB.
Figure C-9A shows the default setting for a nonterminated trigger input
SMB. Use the setting of Figure C-9B to terminate the trigger input SMB.
Figure C-9. SMB Trigger Input Termination
EXT
CLK10
YN
SMB
TRIG TERM
OUT IN
NON INV
S1
S2
S3
S4
S5
CLK10 SOURCE
SMB ONBRD
A. Does Not Terminate
Trigger Input (Default)
B. Terminate Trigger Input
EXT
CLK10
YN
SMB
TRIG TERM
OUT IN
NON INV
S1
S2
S3
S4
S5
CLK10 SOURCE
SMB ONBRD
TERMINATE
TERMINATE
YN
YN