II. Model Interpretation

PXI: Standard PXI bus, compatible with PXIe mixed slots.

2584: NI high-voltage multiplexer series code, representing 12-channel single-line / 6-channel dual-line high-voltage multiplexer.

Full name: PXI-2584 12-channel 600 V single-line PXI multiplexer switch module NI.

Topology identification (software configurable):

Single line: 12×1, dual 6×1 (independent two groups)

Dual line: 6×1, interleaved 11×1 (user-defined)

III. Technical Parameters

(1) Switch and Electrical Characteristics

Topology structure: 1-Wire 12×1 / dual 6×1; 2-Wire 6×1 / interleaved 11×1.

Relay type: Leaf relay, gold-plated contacts, non-latch (requires continuous power supply) NI.

Maximum switching voltage: 600 VDC / 300 Vrms (CAT II), channel-to-ground isolation 600 V (CAT I).

Maximum switching / carrying current per channel: 0.5 A (resistive load) NI.

Maximum switching power: DC 300 W, AC 150 VA (DC~60 Hz).

On-resistance: typical value < 1.5 Ω.

Thermal offset: typical value < 50 µV.

Operating bandwidth: ≥ 900 kHz (‑3 dB, 50 Ω) NI.

Action time: typical 0.4 ms, maximum 0.81 ms.

Channel isolation: 10 kHz > 86 dB; 100 kHz > 76 dB; 1 MHz > 58 dB.

Minimum load: 0.5 V / 1 mA.

(2) Life and Scan Parameters

Mechanical life: 1×10⁸ on-off cycles (1 V/10 mA).

Full-load electrical life: 1×10⁶ on-off cycles (600 V/0.5 A).

Scan list: Maximum 32,000 programmable scan sequences.

Full-channel scan rate: Maximum 600 times/second NI.

(3) Trigger and Control

Trigger channels: Support PXI backplane Trigger 0~Trigger 7 hardware trigger bus.

Minimum trigger pulse width: 150 ns (disable digital filtering).

Built-in functions: Each relay has an independent counter, supporting life monitoring NI.

(4) Physical and Environmental Parameters

Form specification: Standard 3U PXI single-slot module, compatible with PXIe mixed slots NI.

Front-end connector: 200-pin LFH matrix male connector.

Form size: 216 mm × 20 mm × 130 mm.

Weight: Approximately 0.21 kg.

Power supply: PXI backplane 5 V; typical power consumption 4 W (5 V).

Operating temperature: 0 ℃ ~ 55 ℃.

Storage temperature: –20 ℃ ~ 70 ℃.

Relative humidity: 5% ~ 85%, no condensation.

IV. Interfaces and Topology Configuration

Front-end I/O interface

All signals are led out through the 200-pin LFH matrix male connector:

Single line 12×1: 12 input channels + 1 common output channel;

Single line dual 6×1: two independent 6×1 groups, a total of 12 input channels + 2 common output channels;

Dual line 6×1: 6 differential input channels + 1 differential common output channel;

Dual line interleaved 11×1: shared common terminal, suitable for battery stack series measurement.

Bus and software communication

Bus interface: Standard PXI backplane, compatible with PXIe mixed slots, automatically acquires power, clock, trigger NI. Driver: Standard NI-SWITCH, compliant with IVI specifications.

Software support: LabVIEW, TestStand, LabWindows/CVI, Python, etc.

Basic functions: NI MAX can perform hardware recognition, topology configuration, channel status reading, scan editing, trigger configuration, and life count query.

Synchronization capability: PXI trigger bus enables high-precision synchronous switching of multiple modules.

VII. Core functions

600 V high-voltage switching: CAT II 300 Vrms/CAT I 600 VDC isolation, suitable for high-voltage low-current scenarios.

Long-life contactor: Mechanical life 1×10⁸ times, electrical life 1×10⁶ times, far exceeding electromechanical contactors.

Fast switching and high bandwidth: 0.4 ms action time, 600 scans/second scanning rate, 900 kHz bandwidth NI.

Flexible topology configuration: Supports 4 topologies, dual-line interleaved mode suitable for battery stack series measurement.

Hardware triggering and scanning: 32,000-step scanning list, hardware automatically executes, improving test throughput.

Relay life monitoring: On-board counter records on/off times, supports predictive maintenance NI.

VIII. Application scenarios

Battery testing: High-voltage single cell voltage inspection, balancing test, aging test for lithium batteries/fuel cell stacks NI.

Semiconductor testing: Leakage current, breakdown voltage testing for high-voltage devices (MOSFET, IGBT).

Industrial high-voltage testing: Signal routing for high-voltage sensors, insulation resistance, withstand voltage tests.

ATE equipment: High-voltage low-current function testing, power module testing, relay life testing.

New energy research: High-voltage signal acquisition and switching for photovoltaic modules, energy storage systems NI.

IX. Usage and Maintenance Instructions

Usage points

Installation: Insert into 3U standard slot, tighten panel screws, keep away from strong electromagnetic interference; PXIe chassis prefer mixed slots NI.

Connection: Match 200-pin LFH cable, use insulated shielded wire for high-voltage circuits, reliable grounding, avoid exposure.

Electrical limits: Strictly follow 600 V/0.5 A rated parameters;严禁 overload or short circuit， connect shunt diode for inductive loads.

Topology selection： Dual-line interleaved 11×1 for battery stack series measurement； dual 6×1 for independent high-voltage channels.

Safety regulations： High-voltage operation requires power-off connection， wear insulating gloves， prevent electric shock.

Maintenance instructions

Regular inspection： Check 200-pin LFH connector quarterly， clean dust， check for loose oxidation， focus on high-voltage circuit insulation.

Life management： Regularly read on/off times， plan to replace relays when approaching 1×10⁶ times.

Environmental control： Maintain dry and ventilated， temperature 0~55 ℃， avoid condensation and dust accumulation， prevent high-voltage leakage.

Fault handling： Check wiring， grounding and topology configuration first for channel abnormalities； replace single-channel relay on-site for faults.

Storage requirements： Disconnect cables when not in use， protect interface from dust， store in a dry environment at -20~70 ℃.

Calibration： Suggest annual calibration， test on/off status， conduction resistance， bandwidth and isolation performance.