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Appendix C
Front Panel and Connectors
C-18
www.ni.com
Speaker
Figure C-14 shows the location of the speaker connection on the
VXIpc 870 Series.
Switchcraft manufactures a mating speaker connector, part number 750.
Figure C-14.
Speaker Connection Location
Signal Characteristics
Refer to the relevant standard for the signal characteristics for VGA, SCSI,
Ethernet, keyboard, mouse, parallel, serial, and GPIB.
Table C-10 shows the signal characteristics for the SMB and speaker
connections.
Table C-10.
Signal Characteristics for SMB and Speaker Connections
Signal
Voltage
Range
Maximum
Current
Frequency
Range
SMB
(TRIG out, CLK out)
0 to 3.4 V
200 mA
DC-10 MHz
SMB (TRIG in)
0 to 5 V
100 mA*
DC-10 MHz
Speaker
0 to 4.3 V
75 mA
DC-20 kHz
* With 50
Ω
termination
Speaker