CDAQ-9188XT National Instruments

CDAQ-9188XT National Instruments Serial Port Converter

Brand：National Instruments Model number：CDAQ-9188XT

Country of origin: United States Product weight：0.12kg

HS code：8517623990

Product Details：

Product Dimensions：

The cDAQ-9188XT is engineered for reliability in demanding conditions. Unlike standard Ethernet chassis, it features a hardened mechanical design and components rated for a wider thermal window. It connects to a host PC or network via a standard Gigabit Ethernet port, enabling long-distance data transmission that exceeds the limits of USB-based systems. The chassis includes an integrated NI-STC3 timing and synchronization chip, which provides four advanced counters and a highly accurate internal timebase for synchronized measurements across all eight slots.

Technical Parameters

Number of Slots: 8 slots for NI C Series I/O modules.
Network Interface: 10/100/1000 Base-T Gigabit Ethernet (RJ-45).
Operating Temperature: -40°C to 70°C.
Storage Temperature: -40°C to 85°C.
Shock Resistance: 50 g operating, 3-axis (half-sine pulse).
Vibration Resistance: 5 g operating, 10 Hz to 500 Hz.
Power Requirement: 9 V to 30 V DC input.
Timing Resolution: 80 ns.
Timing Accuracy: 50 ppm of sample rate.
Internal Counters: 4 general-purpose 32-bit counters/timers.
Network Protocols: TCP/IP, UDP, HTTP, DHCP.

Product Advantages

The primary advantage of the cDAQ-9188XT is its extreme environmental resilience. With an operating range down to -40°C and up to 70°C, it can be deployed in unconditioned outdoor enclosures or directly on heavy machinery without external cooling or heating systems.

Another significant benefit is Ethernet connectivity. By using Gigabit Ethernet, users can place the data acquisition hardware up to 100 meters away from the host computer using standard CAT5e/6 cables, or even further using switches and fiber optics. This is ideal for large-scale structural testing or factory-wide monitoring where a central control room is far from the sensors.

The scalability provided by the 8-slot architecture allows for high-density measurements. A single chassis can handle hundreds of channels of data if high-density modules are used. Furthermore, the NI-STC3 timing technology ensures that measurements from different modules remain perfectly synchronized, which is critical for phase-sensitive measurements like vibration or power quality analysis.

Important Considerations

Users must be aware that the cDAQ-9188XT requires a stable DC power source between 9 V and 30 V. While the chassis is rugged, the overall system's environmental rating is only as strong as the C Series modules inserted into it; users should ensure that the modules they choose also support the extended temperature range if operating in extreme conditions.

From a software perspective, the chassis requires NI-DAQmx driver software. It is important to verify that the version of NI-DAQmx installed on the host computer supports the cDAQ-9188XT. Additionally, while Ethernet provides great distance, network bandwidth must be managed. High-speed streaming on all eight slots can saturate a 100 Mbps network, so a Gigabit infrastructure is highly recommended for maximum performance.

Product Applications

The cDAQ-9188XT is widely used in sectors where high-fidelity measurements meet harsh surroundings.

Automotive and Aerospace Testing: It is often mounted inside vehicle engine compartments or on aircraft frames during flight tests to monitor temperature, pressure, and structural integrity.
Structural Health Monitoring: Used for long-term monitoring of bridges, dams, and wind turbines where the equipment is exposed to outdoor weather and high-vibration loads.
Oil and Gas Operations: Employed in remote pumping stations or on offshore rigs for condition monitoring of rotating equipment and pressure vessels.
Heavy Machinery Research: Attached to earth-moving equipment or industrial presses to capture high-shock and high-vibration data during operation.
Distributed Power Monitoring: Used in electrical substations to monitor grid health across large physical areas via an existing Ethernet backbone.

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