User`s manual

VXI Technology, Inc.
118 Tektronix to VXI Technology Cross-Ref. Guide
1.) The VTI4101A has fixed input impedances. Calls to this function will not change these
impedances.
DC Voltage: 1 GΩ (<
10Vrange)
10 MΩ (>
100V range)
AC Voltage: 1 MΩ (in parallel with 50 pF)
2.) The VTI4101A has different input resistance ranges than the VX4101A.
VTI4101A Resistance Range VX4101A Resistance Range
20 Ω 30 Ω
200 Ω 300 Ω
2 kΩ 3 kΩ
20 kΩ 30 kΩ
200 kΩ 300 kΩ
2 MΩ 3 MΩ
20 MΩ 30 MΩ
300 MΩ
Measurements over 20 MΩ will return an 'out-of-range' reading
3.) 1 A and autorange are supported current ranges. Setting to 150 mA range will put device into
autorange.
4.) Trigger Delay functions are not supported and will return an error.
5.) Handshaking functions are not supported and will return an error.
6.) FDC and legacy functions are not supported and will return an error.