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BNC-2120 Installation Guide

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© National Instruments

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3

Figure 1.  

BNC-2120 Front Panel

1

RES/BNC Switch (AI 3)

2

Resistor Measurement 
Screw Terminals

3

Thermocouple Input 
Connector

4

Temperature Reference

5

BNC/Temp. Ref. Switch (AI 0)

6

BNC/Thermocouple 
Switch (AI 1)

7

Analog Input BNC 
Connectors

8

FS/GS Switches

9

Analog Output BNC 
Connector

10 Frequency Range Selection 

Switch

11 Sine/Triangle BNC Connector
12 TTL Square Wave BNC 

Connector

13 Sine/Triangle Waveform 

Switch

14 Frequency Adjust Knob
15 Amplitude Adjust Knob
16 Digital I/O Screw Terminals

17 Digital I/O LEDs
18 User-Defined Screw Terminals
19 User-Defined BNC 

Connectors

20 Timing I/O Screw Terminals
21 Quadrature Encoder Screw 

Terminals

22 Quadrature Encoder Knob
23 Timing I/O BNC Connector
24 Power Indicator LED

E

L

R

T

T

S

N

I

NA

M

U

N

O

I

A

S

T

N

_

+

Floating
Source (FS)

_ +

Ground Ref.
Source (GS)

AO

ANALOG OUTPUTS

ANALOG INPUTS

DIGITAL I/O

FUNCTION GENERATOR

Frequency Selection

Amplitude Adjust

Sine / Triangle

TTL Square Wave

Frequency Adjust

GS

FS

GS

FS

GS

FS

GS

FS

GS

FS

GS

FS

GS

FS

GS

FS

AI 0

AI 1

USER 1

USER 2

P0.7

P0.6

P0.5

P0.4

P0.3

P0.2

P0.1

P0.0

D GND

AI 2

BNC

RES+
AI GND
AI SENSE
RES-

1

2

3

4

Temp.

Ref.

0.1-10 kHz

LO

HI

LO

HI

1-100 kHz

13-1000 kHz

Thermo
couple

BNC

RE

S

AI 3

BNC

AI 3

AI 4

AI 5

AI 6

AI 7

AO 0

AO 1

USER-DEFINED

SIGNALS*

*For BNC connections, wire
 any Timing I/O or Digital I/O
 screw terminals here.

PWR

BNC-2120

TIMING I/O

PFI 0 / P1.0

96 Pulses / Rev

Quadrature

Encoder

PFI 1 / P1.1

PFI 2 / P1.2

PFI 3 / P1.3

PFI 4 / P1.4

PFI 5 / P1.5

PFI 6 / P1.6

PFI 7 / P1.7

PFI 8 / P2.0

PFI 9 / P2.1

PFI 12 / P2.4

PFI 13 / P2.5

PFI 14 / P2.6

+5 V

PULSES

UP / DN

D GND

1.

2.
3.
4

.

!

10

16

17

1

5

7

9

8

4

6

2

12

14

1

3

11

15

19

20

2

3

22

24

21

3

1

8

Содержание BNC-2120

Страница 1: ...ing I O TIO connection Two user defined BNC connectors A function generator with the following outputs Frequency adjustable TTL compatible square wave Frequency and amplitude adjustable sine wave or t...

Страница 2: ...Series User Manual the M Series User Manual the S Series User Manual or the X Series User Manual BNC cables 28 16 AWG wire Wire strippers Flathead screwdriver Installing the BNC 2120 Caution When this...

Страница 3: ...BNC Connector 24 Power Indicator LED E L R T T S N I NA M U N O I A S T N _ Floating Source FS _ Ground Ref Source GS AO ANALOG OUTPUTS ANALOG INPUTS DIGITAL I O FUNCTION GENERATOR Frequency Selectio...

Страница 4: ...damage the BNC 2120 all devices connected to it and the host computer Overvoltage can also cause an electric shock hazard for the operator National Instruments is not liable for damage or injury resu...

Страница 5: ...revised its terminal names so they are easier to understand and more consistent among NI hardware and software products The revised terminal names used in this document are usually similar to the nam...

Страница 6: ...Move the FS GS switch to the applicable position depending on whether you are measuring a floating source FS or ground referenced source GS analog input signal Refer to the Measuring Floating Signals...

Страница 7: ...the temperature reference and thermocouple connector To use the integrated circuit IC temperature reference on the BNC 2120 move the BNC Temp Ref switch above the AI 0 BNC to Temp Ref The integrated c...

Страница 8: ...renced single ended RSE mode 3 Connect the resistor to the RES and RES screw terminals You can measure resistors with values ranging from 100 to 1 M 4 Measure VCC on AI 3 and the voltage drop across t...

Страница 9: ...onnecting signals to the screw terminals use 28 16 AWG wire with the insulation stripped to 0 28 in Table 2 describes the timing I O BNC and terminal signals on the BNC 2120 Table 2 BNC 2120 Timing I...

Страница 10: ...to the general purpose counter 1 PFI 5 P1 5 Programmable Function Interface channel 5 or Port 1 Digital Input Output channel 5 AO SAMP CLK AO Sample Clock Signal As an output this pin is the ao Sample...

Страница 11: ...pin can be used to route signals directly to the RTSI bus As an output this pin emits the Ctr0InternalOutput signal PFI 13 P2 5 Programmable Function Interface channel 13 or Port 2 Digital Input Outp...

Страница 12: ...with counter 1 connect the PULSES terminal to PFI 3 and connect the UP DN terminal to the P0 7 digital I O terminal the up down pin of counter 1 Refer to Table 2 for more information about PFI 3 and P...

Страница 13: ...6 shows an example of how to use the USER 1 and USER 2 BNCs To access the PFI 8 P2 0 CTR 0 SOURCE signal from a BNC connect USER 1 on the screw terminal block to PFI 8 P2 0 with a 28 16 AWG wire Figu...

Страница 14: ...each digital line as listed in Table 3 Specifications This section lists the specifications of the BNC 2120 These specifications are typical at 25 C unless otherwise specified Note Refer to your DAQ...

Страница 15: ...tions 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 Vol 0 6 V 8 mA 1 6 V 24 mA Voh 4 4 V 8 mA 4 V 13 mA Function Generator...

Страница 16: ...terminals 2 Output signals PULSES 96 pulses revolution UP DN High for clockwise rotation low for counterclockwise rotation Pulse width 1 s Power Requirement 5 VDC 5 200 mA sourced from the multifuncti...

Страница 17: ...is used in a manner not described in this document Electromagnetic Compatibility This product meets the requirements of the following EMC standards for electrical equipment for measurement control an...

Страница 18: ...NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental information refer to the Minimize Our En...

Страница 19: ...t and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products technology refer to the appropriate location Help Pa...

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