BNC-2120 Installation Guide
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© National Instruments
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15
Resistor measurement range............................. 100
Ω
to 1 M
Ω
Resistor measurement error ..............................
≤
5%
Screw terminals ................................................ 4 positions, 28–16 AWG wire
Switches
Floating source/grounded source ............. 8
BNC/temperature reference IC ................ 1
BNC/thermocouple connector ................. 1
BNC/resistor screw terminals .................. 1
Analog Output
Field connection ............................................... 2 BNC connectors
Digital Input/Output
Screw terminals ................................................ 9 positions, 28–16 AWG wire
LED state indicators ......................................... 8, 1 each for lines P0.<0..7>
Protection (DC max V)
Powered off............................................... ±5.5 V
Powered on ............................................... +10/–5 V
Drive
V
ol
............................................................. 0.6 V, 8 mA
1.6 V, 24 mA
V
oh
............................................................. 4.4 V, 8 mA
4 V, 13 mA
Function Generator
Square wave...................................................... TTL-compatible
Frequency range ....................................... 100 Hz to 1 MHz
Frequency adjust....................................... Through the Frequency Adjust knob
Rise time ................................................... 2 ns
Fall time.................................................... 2 ns
Sine/triangle wave
Frequency range ....................................... 100 Hz to 1 MHz
Frequency adjust....................................... Through the Frequency Adjust knob
Amplitude range ....................................... 200 mV
p-p
to 4.8 V
p-p
Amplitude adjust....................................... Through the Amplitude Adjust knob
Output impedance..................................... 453
Ω
(sine/triangle wave)
50
Ω
(square wave)