SCXI 8-Channel Isolated Frequency Input Module

307

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NI SCXI-1126 ................................................................776572-26

For information on extended warranty and value-added

services, see page 20.

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See page 276 to configure your complete SCXI system

Ordering Information

Terminal Block

Part Number

Type

Cabling

Special Functions

Page

SCXI-1320

777687-20

Screw terminals/front-mounting

–

–

329

SCXI-1327

777687-27

Screw terminals/front-mounting

–

329

SCXI-1305

777687-05

BNC connectors/front-mounting

–

AC coupling (configurable per channel)

329

TBX-1316

777207-16

Screw terminals

SH-32-32-A (183230-01)

Extends input range to 1000 V DC

331

TBX-1328

777207-28

Screw terminals/DIN-rail mount

SH32-32-A (183230-01)

DIN-rail mount Isothermal construction

331

TBX-1329

777207-29

Screw terminals/DIN-rail mount

SH32-32-A (183230-01)

DIN-rail mount AC/DC coupling with removable screw terminals

331

SCXI-1330

777687-30

Solder pins/front-mounting

–

Low-cost connector and shell assembly

330

Figure 2. Terminal Block Options for SCXI-1126

Scan Clock

Optical

Isolation

Isolation

Barrier

CH0

CH7

CH 7+

CH O+

CH 0-

CH 7-

Comparator

(with input protection)

Threshold

and

Hysteresis

(8-bits)

Frequency

to Voltage

8:1

Analog

Multiplexer

Analog

Bus

Switch

To

Analog

Bus

Optical

Isolation

Optical

Isolation

Comparator

(with input protection)

Threshold

and

Hysteresis

(8-bits)

Optical

Isolation

Range/Fiber

Settings

Digital

Interface and Control

Calibraton EEPROM

Buffer

Frequency

to Voltage

Range/Fiber

Settings

Figure 1. SCXI-1126 Block Diagram