Appendix A
Specifications
NI PXI-1042 Series User Manual
A-8
ni.com
Input impedance ..............................50
Ω
± 5
Ω
(rear connector)
Maximum jitter introduced
by backplane circuitry .....................1 ps RMS in 10 Hz to 1 MHz
range
External clock output
Connector ........................................BNC on rear of chassis
(ground-referenced)
Output amplitude .............................1 V
pp
±20% squarewave into 50
Ω
2 V
pp
into open circuit
Output impedance............................50
Ω
± 5
Ω
Mechanical
Overall dimensions
Standard chassis
Height .......................................6.97 in. (177 mm)
Width........................................10.68 in. (271.3 mm)
Depth ........................................15.61 in. (396.5 mm)
Note
0.57 in. (14.5 mm) is added to height when feet are installed. When tilted with front
feet extended on table top, height is increased approximately 2.08 in. (52.8 mm) in front
and 0.583 in. (14.8 mm) in rear.
Weight ....................................................8.4 kg (18.6 lb)
Chassis materials ....................................Sheet Aluminum (5052-H32,
3003-H14, and 6061-T6),
Extruded Aluminum (6060-T6),
and Cold Rolled Steel, PC-ABS,
Santoprene, Nylon
Finish ......................................................Conductive Clear Iridite
on Aluminum
Clear Chromate Zinc Plating
on Cold Rolled Steel
Polyurethane Enamel
