I. Product Introduction

NI SCXI-1324 is a high-voltage shielded relay terminal board, specifically designed for the SCXI-1160 relay module (16-channel SPDT relays). Its core consists of 48 screw terminals + 250Vrms common-mode isolation, used for high-voltage signal input and load switching. It is fully metal shielded, without cold-end compensation, and is now obsolete. Spare parts and maintenance are available.

II. Model and Part Number

Model: SCXI-1324

Part Number: 777687-24

Location: High-voltage relay load connection terminal board for SCXI-1160

III. Technical Parameters

Electrical Parameters

Compatible Module: SCXI-1160 (16-channel SPDT relays)

Terminal Quantity: 48 screw terminals (3 terminals per relay: COM/NO/NC, 16×3 = 48)

Common-mode Isolation: 250Vrms (channel-to-channel, channel-to-ground)

Single-channel Current: Maximum 2A (load/signal)

Wire Gauge: 26–16 AWG

Cold-end Compensation: None

Connector: 96-pin DIN connector on the backplane, directly connected to the front end of SCXI-1160

Mechanical and Environmental

Size: Standard SCXI (same as 1320 series)

Weight: Approximately 450g

Installation: Direct insertion into the 1160 front end, fixed with thumb screws on top and bottom

Temperature: Operating 0–50℃; Storage - 20–70℃

Humidity: 5%–90% RH, no condensation

Shielding: Full metal shielded enclosure, anti-EMI/RFI

Safety Certification: IEC 61010-1, UL 3111-1, CAN/CSA C22.2 No.1010.1

IV. Interfaces and Configuration

Front Panel: 48 screw terminals (COM/NO/NC×16), no jumpers / no switches

Backplane: 96-pin DIN connector, directly connected to SCXI-1160

Configuration: Plug-and-play, no hardware / software settings

Software: Compatible with NI-DAQmx, supports LabVIEW, C/C++, LabWindows/CVI

V. Core Functions

High-voltage Load Switching: 250Vrms isolation, directly connected to 220VAC/DC loads (relays, contactors, solenoids).

16-channel Relay Full Wiring: 48 terminals cover each COM/NO/NC, clear wiring, convenient maintenance.

Industrial-grade Anti-interference: Full metal shield, compatible with factory strong electromagnetic environment, ensuring stable switching.

High-reliability Connection: Screw terminals with stress release, anti-vibration loosening, suitable for long-term operation.

VI. Application Scenarios

High-voltage Relay Control: AC/DC load switching within 250Vrms (motors, heaters, valves).

SCXI-1160 Companion: High-voltage relay terminal board for 16-channel SPDT relay module, builds a high-voltage switch system.

Industrial Automation: High-voltage equipment control in production lines, power switching, safety circuit control.

Test Measurement: High-voltage signal routing, load on/off testing, relay lifespan testing.

VII. Usage and Maintenance Use

Power-off installation: Align and push into the 1160 front end, then lock the upper and lower thumb screws.

Wiring: Connect the load power to COM, the load to NO/NC; connect the shield to the ground to reduce interference.

Software: Select 1160 in NI-DAQmx, control the relay on/off, no additional configuration required. Maintenance

Environment: 0 - 50℃, dry and ventilated, away from strong electromagnetic interference.

Check: Regularly inspect for loose screws and oxidation of terminals. Tighten and clean.

Cleaning: Disconnect power, wipe terminals with anhydrous alcohol, then power on after drying.

Storage: Disconnect power, remove the board, seal with an anti-static bag, and store in a cool and dry place.