NI SCXI‑1327 Terminal Block – Reliable Screw‑Terminal Connectivity for SCXI Switching Modules

The NI SCXI‑1327 is a front‑mount terminal block designed for NI SCXI switching modules, most commonly paired with the SCXI‑1127/1128/1129 families. From my experience, it’s the straightforward way to bring high‑density switch or multiplexer channels out to labeled, durable screw terminals without fuss. You might notice that it keeps wiring tidy in crowded cabinets and makes channel tracing faster during maintenance — which, in many cases, cuts debug time dramatically.

One thing I appreciate is how the SCXI‑1327 balances density and serviceability. It seems to be the “fit‑and‑forget” option for labs and production lines where switching topologies change occasionally, and technicians prefer clear labeling and secure termination over custom cable harnesses.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery: 1 week for in‑stock items; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Purpose‑built for SCXI switching – Typically used with SCXI‑1127/1128/1129, giving you a direct, neat breakout of relay/matrix/multiplexer channels.
• Secure screw‑terminal wiring – Firm terminations reduce intermittent faults; field techs can re‑land conductors quickly during reconfiguration.
• Front‑panel mounting – Installs directly on the module for short signal paths and clear channel labeling.
• Channel identification – Labeled rows make it easier to map channels to test sequences without chasing cables.
• Passive, no power required – No added thermal load or power budgeting; just wire it and go.
• Suitable for production or lab use – In most cases, it holds up well to frequent recabling and verification routines.

Technical Specifications

Related or Supporting Products

• SCXI‑1127 – Switch/multiplexer module commonly paired with the SCXI‑1327 for high‑channel‑count routing. Typically used for 1‑wire or 2‑wire scanning setups.
• SCXI‑1128 / SCXI‑1129 – Matrix switch modules; the SCXI‑1327 provides a straightforward screw‑terminal breakout for row/column wiring.
• SCXI‑1328 / SCXI‑1329 – Alternative terminal block options for the same switch families, suited to different wiring styles or density preferences.
• SCXI chassis and controllers – SCXI‑1000 series chassis and compatible controllers or PXI/SCXI bridge solutions for complete signal conditioning and switching systems.

Quick customer note: a device integrator told us they standardized on SCXI‑1327 for a 24/7 burn‑in rack because the labeling made shift‑change troubleshooting simpler — “we could verify channel landings in minutes rather than pulling cables.”

Installation & Maintenance

• Panel and cabinet – Install in a clean, dry SCXI chassis environment. Maintain reasonable ventilation around the module face; avoid tight cable bundles that restrict airflow.
• Wiring practice – Route high‑voltage or noisy lines separately from sensitive measurement paths. Use ferrules where appropriate, and keep conductor lengths consistent to ease channel mapping.
• Torque and strain relief – Tighten screws to a firm, repeatable torque; add cable ties or lacing near the terminal block to reduce pull on terminations.
• Safety – De‑energize connected circuits before servicing. Verify the switch module’s voltage/current limits and apply the same limits to your terminal block wiring.
• Routine care – Periodically check for loose terminations, re‑label any altered channels, and, if used in dusty areas, clean surfaces with a dry, ESD‑safe brush. Firmware updates (if any) apply to the SCXI switch module, not the terminal block.

Quality & Certifications

• CE and RoHS compliant hardware (typical for NI SCXI accessories)
• Manufactured under ISO 9001 quality systems
• Manufacturer’s standard warranty; sales warranty coverage: 365 days