Appendix A
Specifications
VXI-MXI-Express Series User Manual
A-10
ni.com
Front Panel I/O Connectors
EXT CLK SMB Connector
Output drive ............................................50
Ω
source terminated
output driver
Voltage level.................................................... 0.1 to 4.9 V into open circuit (typical)
0.1 to 2.5 V into 50
Ω
(typical)
Absolute maximum DC current..............±50 mA
Output coupling ......................................DC
TRIG IN SMB Connector
Input buffer .............................................TTL compatible
Input coupling.........................................DC
TRIG OUT SMB Connector
Output drive ............................................50
Ω
line driver
Voltage level................................................2.0 V minimum into 50
Ω
(typical)
Output coupling ......................................DC
Figure A-2.
Front Panel SMB Connectors
1
2
TRIG IN
1
2
1
2
TRIG OUT
EXT CLK (CLK10)