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SCXI-1308
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National Instruments · SCXI

SCXI-1308

The National Instruments SCXI-1308 provides 32 current-input channels for SCXI systems. Each input uses a 249 Ω precision resistor to convert 0–20 mA or 4–20 mA signals into voltage.

ManufacturerNational Instruments
ModelSCXI-1308
Part Number777687-08
Product Type32-channel current input terminal block
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Channels32
Process current signals0–20 mA and 4–20 mA
Input resistor249 Ω per channel
NI part number777687-08
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Overview

Product overview

Key product information and technical features.

Designed for the SCXI-1100 and SCXI-1102/B/C analog input modules, the SCXI-1308 adds current-to-voltage conversion at the signal termination point.

The shielded terminal block attaches to the module front connector and provides 78 screw terminals, including 32 differential input pairs.

  • Built-in 249 Ω current-loop resistors.
  • Supports 0–20 mA and 4–20 mA inputs.
  • Shielded construction with screw-terminal wiring.
Verified specifications

Technical data

Verified product specifications.

Input channels32 differential
Screw terminals78
Current-loop resistance249 Ω
Resistor tolerance0.1 %
Resistor power rating0.25 W
Maximum input current20 mA
Condition & included items

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Condition

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Included

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Revision

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Compatibility

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National Instruments

Manufacturer

SCXI

Signal-conditioning platform

SCXI-1308

Current-input terminal block

Supported modules

SCXI-1100, SCXI-1102, SCXI-1102B, SCXI-1102C

Match the terminal block to the specified SCXI module; SCXI terminal blocks are not universally interchangeable.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

SCXI-1308 32-Channel Current Input Terminal Block Installation GuideInstallation Guide And Specifications · docs-be.ni.com
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SCXI Terminal BlocksSelection Guide · search.ni.com
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SCXI-1308 wiring diagrams, installation, and specificationsTechnical resource
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Shipping, warranty & returns

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Warranty
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Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Which modules support the SCXI-1308?

NI lists the SCXI-1100, SCXI-1102, SCXI-1102B, and SCXI-1102C.

How is the measured voltage converted to current?

Divide the measured voltage in volts by 249 to obtain current in amperes.

Can an input measure voltage instead of current?

NI requires removing that channel's current-loop resistor before measuring voltage signals.

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