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SCXI-1305 Installation Guide

6

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Configuring the Clock

Due to space limitations, a jumper, W1, inside the terminal block is used to 
select the clock that goes to the SMB connector. Figure 2 shows the 
location of jumper W1. Refer to the 

SCXI-1140 User Manual

 or 

SCXI-1141/1142/1143 User Manual

 for the use of these clocks.

Connecting the Signals

Note

Refer to the 

Read Me First: Safety and Radio-Frequency Interference

 document 

before removing equipment covers or connecting or disconnecting any signal wires.

To connect the signal to the terminal block, perform the following steps, 
while referring to Figures 1 and 2:

1.

Unscrew the top cover screws and remove the top cover.

2.

Configure each of the AC/DC coupling and ground-referencing 
switches, depending on the signal you are measuring and the SCXI 
module you are using. The top set of switches (S1, S2, and S3) 
corresponds to input channel 0, the next set down (S4, S5, and S6) 
corresponds to input channel 1, and so on. The bottom set of switches 
(S22, S23, and S24) corresponds to input channel 7.

3.

If using the SCXI-1305 with an SCXI-1140 or SCXI-1141/1142/1143, 
configure the SMB connector function (jumper W1).

4.

Reinstall the top cover and tighten the top cover screws.

5.

Connect the signal wires to the BNC and SMB connectors. When 
connecting the signals to the SCXI-1305, follow the labeling on the 
SCXI-1305 for the appropriate module.

Note

Signal names printed in black (the first name in the pair) are for the SCXI-1120/D, 

SCXI-1125, SCXI-1126, SCXI-1140, and SCXI-1141/1142/1143. Signal names printed in 
blue (the second name in the pair) are for the SCXI-1121.

6.

Attach the SCXI-1305 to the SCXI module using the thumbscrews.

7.

Refer to the 

SCXI Quick Start Guide

 to power on the SCXI chassis and 

configure the system in software.

Summary of Contents for SCXI -1305

Page 1: ...e SMB connector for easy connection The eight BNCs are for signal connections to the eight module inputs The SMB provides access to module digital signals HOLDTRIG for the SCXI 1140 and OUTCLK and EXT...

Page 2: ...Safety and Radio Frequency Interference DAQ Getting Started Guide SCXI Quick Start Guide User manual for the module used SCXI chassis or PXI SCXI combination chassis user manual Technical Support Info...

Page 3: ...bles filenames and extensions Configuring Floating or Ground Referenced Signals Before installing and using the terminal block you must determine what type of signal sources are in the SCXI system Sig...

Page 4: ...ion with the SCXI 1120 D SCXI 1121 SCXI 1125 or SCXI 1126 Use the G position with ground referenced sources Setting the switch to the G position disconnects the resistor from the signal path Always us...

Page 5: ...e capacitors can block up to 50 VDC however voltages applied to the terminal block must not exceed 42 VDC For DC coupling set both switches to the DC position DC coupling removes the filters from the...

Page 6: ...ring and the SCXI module you are using The top set of switches S1 S2 and S3 corresponds to input channel 0 the next set down S4 S5 and S6 corresponds to input channel 1 and so on The bottom set of swi...

Page 7: ...ion Guide Figure 1 SCXI 1305 Parts Locator Diagram 1 Rear Connector 2 Thumbscrew 3 Top Cover Screws 4 Top Cover 4 3 1 2 HOLD CLK M A X I N P U T 4 2 V O L T S C H 4 C H 3 C H 2 C H 1 C H 0 C H 7 C H 6...

Page 8: ...es 8 Channel 6 Switches 9 Channel 7 Switches 10 Serial Number 11 AC DC Coupling Switches 12 Floating Ground Reference Switches 13 SCXI 1121 Signal Connections 14 SCXI 1120 D 1125 1126 1140 1141 1142 1...

Page 9: ...5 Circuit Diagram Specifications All specifications are typical at 25 C unless otherwise specified Electrical Compatible modules SCXI 1120 D 8 input channels SCXI 1121 4 input channels 4 excitation ou...

Page 10: ...within 42 VDC of the voltage applied to any other channel Field wiring connectors Signal connectors 8 female BNC connectors Auxiliary connectors 1 female SMB connector Signal connector spacing 1 8 cm...

Page 11: ...CXI 1305 Dimensions Weight 412 gm 14 5 oz Environment Operating temperature 0 to 50 C Storage temperature 20 to 70 C Humidity 10 to 90 RH noncondensing Maximum altitude 2 000 meters Pollution Degree i...

Page 12: ...fer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product visit ni com certification search by model number or p...

Page 13: ...cycle all products must be sent to a WEEE recycling center For more information about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee htm RoHS National I...

Page 14: ...Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products refer to the appr...

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