NI SCXI‑1346 Adapter – Bridge Your SCXI Signal Conditioning to NI DAQ Hardware

The NI SCXI‑1346 is a passive interface adapter designed to connect an NI SCXI chassis/module stack to compatible NI multifunction DAQ devices. From my experience, this piece is used when you want the robustness of SCXI signal conditioning and multiplexing, but you still plan to acquire data with a PCI/USB/PCMCIA DAQ device that supports SCXI mode. You might notice that, unlike active interface modules, the SCXI‑1346 doesn’t require power—it simply routes timing, control, and analog lines between the DAQ and the SCXI backplane with proper shielding and pin mapping.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: Typically 1 week if in stock; no more than 1 month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Passive SCXI–DAQ bridge – No external power needed; it routes control, timing, and analog paths between your NI DAQ device and the SCXI backplane.
• Shielded, low-noise routing – Designed to maintain signal integrity so your conditioned SCXI signals reach the DAQ lines with minimal pickup.
• SCXI mode compatibility – Works in setups where the DAQ device supports SCXI control timing for multiplexed measurements.
• Quick integration – Compact form factor with straightforward cabling and captive hardware; setup usually takes minutes.
• Zero configuration overhead – Because it’s passive, most configuration lives in NI‑DAQmx or Traditional NI‑DAQ; the adapter itself just connects the dots.

Technical Specifications

Related or Supporting Products

• NI SCXI‑1349 – Similar adapter typically used with 68‑pin NI E/M Series DAQ hardware; many teams pick it when their DAQ uses a standard 68‑pin connection.
• NI SCXI‑1600 – USB interface module that turns an SCXI chassis into a USB data acquisition system without a separate DAQ card; handy when a PC‑based DAQ isn’t desired.
• NI SCXI‑1000 / SCXI‑1001 / SCXI‑1000DC Chassis – Chassis options for housing SCXI signal‑conditioning modules; select by slot count and power input type.
• NI SCXI‑1102 – 32‑ch thermocouple input module often used with this adapter for temperature logging and thermal characterization.
• NI SCXI‑1180 – Feedthrough panel for bringing external signals directly to the DAQ; useful when you need a few direct connections alongside SCXI‑conditioned ones.

Installation & Maintenance

• Environment – Install the SCXI chassis in a ventilated cabinet or rack that meets the chassis spec; keep ambient within 0–50 °C and maintain clear airflow at the intake/exhaust.
• Grounding & shielding – Use shielded cables and maintain a single‑point ground strategy to minimize loops; the adapter relies on proper system grounding for low noise.
• Wiring practices – Route high‑level power lines away from low‑level sensor wiring; secure the adapter connection with captive screws and add strain relief if the cable is subject to movement.
• Software/driver setup – Configure SCXI modules and channels in NI‑DAQmx (or Traditional NI‑DAQ for legacy systems); the SCXI‑1346 itself needs no configuration.
• Routine checks – Periodically inspect connectors for oxidation or looseness, clean dust from the chassis, and keep NI drivers/firmware current. Calibration applies to the measurement path (modules/DAQ), not the passive adapter.
• Safety – De‑energize the system before connecting or disconnecting the adapter. Avoid flexing the cable near the connector; repeated bending is a common cause of intermittent faults.

Quality & Certifications

• Manufactured by NI to ISO 9001 quality standards
• CE and RoHS compliance for the SCXI family (varies slightly by revision; typically applicable)
• UL safety certifications generally apply at the chassis/module level
• Standard manufacturer warranty is typically 1 year; we provide a 365‑day warranty coverage