Selectable input ranges
±10 V, ±5 V, ±1 V and ±200 mV complement the model-specific high-voltage range for different signal levels.
NXI-6102 / NXI-6103 – Isolated 8-Channel Data Acquisition Modules
For multichannel voltage acquisition on automotive electronics and industrial controls with 16-bit resolution.
The NXI-6102/6103 acquire eight mutually isolated analogue voltages with 16-bit resolution. Depending on the model, the highest measurement range extends to ±30 V or ±60 V; the single-slot module operates in an NXI chassis or as a standalone unit.
Parallel acquisition
Up to 100 kS/s per channel and 800 kS/s in total support simultaneous observation of multiple signals.
Defined capture
Software and external triggering plus internal or external clock selection enable time-coordinated measurement sequences.
Open system connectivity
LAN and CAN together with SCPI, Modbus RTU and CANopen simplify integration into automated measurement systems.
Personal project consultation
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Select the appropriate technical configuration or access product documentation directly.
ART. NO.
Description
NXI-6102-8/16
|
Description
NXI-6102-8/16 High-voltage analog input module, 8 channels, 16-bit, ±30 V, 800 kS/s, LAN/CAN
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NXI Module Card
Technical Data
NXI Category
Meas. & DAQ Modules
Product category
NXI Measurement & Test Systems
NXI-6103-8/16
|
Description
NXI-6103-8/16 High-voltage analog input module, 8 channels, 16-bit, ±60 V, 800 kS/s, LAN/CAN
|
NXI Module Card
Technical Data
NXI Category
Meas. & DAQ Modules
Product category
NXI Measurement & Test Systems
NXI-6102/6103 high-voltage analogue input modules overview
The NXI-6102/6103 are eight-channel, 16-bit analogue input modules for acquiring DC and time-varying voltage signals. The largest selectable range extends to ±30 V on the NXI-6102-8/16 and ±60 V on the NXI-6103-8/16; both models also provide ±10 V, ±5 V, ±1 V and ±200 mV ranges. Each channel has its own SMB connector, with 300 V DC isolation between channels. Sampling reaches up to 100 kS/s per channel and 800 kS/s in total. The modules operate as single-slot cards in an NXI-F1000 measurement and control chassis or independently from a 12 V DC supply. LAN and CAN are available for remote control. Software and external triggering, internal or external clocking, and 4 MB × 8 acquisition memory support time-defined multi-channel measurements in laboratory, development and integration tasks.
Key benefits
Eight isolated inputs
Eight SMB channels with 300 V DC inter-channel isolation acquire signals at different potentials within the permissible input limits.
Fine measurement resolution
16-bit conversion and selectable ranges combine high-voltage acquisition with resolution down to 0.1 µV in the ±200 mV range.
Multi-channel acquisition
Up to 100 kS/s per channel and 800 kS/s in total enable parallel acquisition of eight analogue signals.
Triggered capture windows
Software and external triggers, rising or falling edges, and configurable delays position capture around the relevant event.
Synchronous sampling
Internal or external clock sources support coordinated measurements; the external clock is supplied through a suitable NXI chassis.
Chassis or standalone
The single-slot card uses the chassis backplane or operates separately from 12 V DC with LAN or CAN control.
Measurement and trigger principle
The eight analogue inputs connect through SMB. A suitable bipolar measurement range is selected for each enabled channel. Parallel acquisition provides up to 100 kS/s per channel, allowing multiple signal traces to be captured for joint evaluation. Input impedance is greater than 1 MΩ.
In addition to continuous or instant acquisition, the module supports software and external triggers. Rising or falling edges can act as trigger criteria. Sampling trigger settings include trigger level, 0 to 2.5% hysteresis and a delay of 0 to 512 sample-clock periods. Trigger On and Trigger Off sequences position a defined number of samples after or before the trigger event. An external sampling clock requires the corresponding connection through the NXI chassis.
Models and measurement ranges
| Model | Channels / conversion | Selectable measurement ranges | Maximum input range |
|---|---|---|---|
| NXI-6102-8/16 | 8 channels / 16 bit | ±30 V, ±10 V, ±5 V, ±1 V, ±200 mV | ±32 V |
| NXI-6103-8/16 | 8 channels / 16 bit | ±60 V, ±10 V, ±5 V, ±1 V, ±200 mV | ±64 V |
Model selection: The largest required signal excursion determines the choice between NXI-6102 and NXI-6103. Both models provide the same four narrower ranges for smaller signals.
Sampling, resolution and signal connection
| Characteristic | Specification | Technical significance |
|---|---|---|
| Sampling rate | Up to 100 kS/s per channel; up to 800 kS/s total | Parallel observation of up to eight voltage traces |
| Resolution | 0.1 mV in the ±30/±60 V, ±10 V, ±5 V and ±1 V ranges; 0.1 µV at ±200 mV | Range-dependent adaptation to high and low signal levels |
| Input impedance | > 1 MΩ | Defined electrical loading of the connected signal source |
| Gain temperature coefficient | 30 ppm/°C | Characteristic for evaluating temperature-related gain variation |
| Inter-channel isolation | 300 V DC | Measurement of signals at separate potentials within the instrument limits |
| Acquisition memory | 4 MB × 8 | Buffering of acquired data for subsequent evaluation |
For stable measurements, use short, shielded twisted-pair signal cables and route them away from power cables, motors, switches and other strong interference sources.
Acquisition modes and programmable functions
| Function | Configuration | Purpose |
|---|---|---|
| InstantAI | Channel, range, frequency, averaging count from 10 to 10,000, internal or external clock source | Direct voltage sampling with configurable averaging |
| ParallellingAI | Up to 100 kS/s per channel, count from 0 to 512, internal or external clock source | Joint acquisition of multiple enabled channels |
| External trigger | Trigger On/Off, rising or falling edge, setting range from 0 to 512 | Start or reference capture from an external event |
| Sampling trigger | Trigger level, rising or falling edge, 0 to 2.5% hysteresis, delay from 0 to 512 | Event-related capture with adjustable noise immunity and temporal positioning |
| Trigger On / Off | Samples after or before the trigger, optionally delayed by sample-clock periods | Analysis of signal behaviour before or after a defined event |
Typical applications
High-voltage signal acquisition
The module digitises up to eight analogue voltages and provides model-dependent ranges up to ±30 V or ±60 V for larger signals.
Automotive electronics and controllers
Multiple analogue controller or sensor signals can be acquired in parallel and aligned with a test event by triggering.
Industrial control systems
Selectable ranges acquire analogue control and feedback signals, while LAN or CAN connects the module to the measurement setup.
Integrated test systems
The single-slot format, backplane connection and multi-channel acquisition support compact measurement and control architectures in an NXI system.
Teaching and research
Software configuration, selectable ranges and visible multi-channel traces support experimental setups and the evaluation of analogue signals.
Interfaces, software and system integration
| Equipment | Implementation | Function |
|---|---|---|
| Analogue inputs | 8 × SMB | Connection of the eight voltage signals to be acquired |
| LAN | Communication interface | Device discovery, IP configuration and remote network access |
| CAN | CANH, CANL and switchable 120 Ω termination | CAN control communication with adaptable bus termination |
| Protocols | SCPI, Modbus RTU, CANopen | Programmatic integration into measurement and automation sequences |
| NXI backplane | 40-pin ERmet B8 connector | Power, communication and control inside the NXI chassis |
| PC software | Windows 7 or later; Ethernet port | Device discovery, configuration, measurement display, trigger and acquisition control |
| Status indicators | Run, STA, Link, PWR | Indication of operation, event or alarm, communication and power |
Installation and operating conditions
| Characteristic | Requirement or implementation |
|---|---|
| Form factor | Single-slot module; 130.5 × 20 × 230.5 mm (H × W × D, including puller) |
| Standalone supply | 12 V DC ±10%, current consumption < 1 A |
| Chassis operation | Installation in an NXI-F1000 chassis; power and communication through the backplane |
| Operating temperature | 0 to 40 °C |
| Storage temperature | −20 to +60 °C |
| Environment | Altitude < 2,000 m; 5 to 90% relative humidity, non-condensing; 80 to 110 kPa |
| Maintenance | Recommended calibration interval: once per year |
Switch off the instrument before making or disconnecting connections. Standalone operation requires the 12 V DC supply, the selected communication link and the SMB signal cables. Measurement signals must remain within the input excursion permitted for the model and selected range.
NXI-6102/6103 FAQ
How do NXI-6102 and NXI-6103 differ?
The NXI-6102 provides a largest selectable range of ±30 V with a maximum ±32 V input. The NXI-6103 provides ±60 V and a maximum ±64 V input. Their four narrower ranges are identical.
Can all eight channels acquire simultaneously?
Yes. Parallel acquisition supports up to 100 kS/s per channel, corresponding to as much as 800 kS/s across all eight channels.
Can the module operate without an NXI chassis?
Yes. Standalone operation uses a 12 V DC input plus LAN or CAN. Chassis functions such as external clock input require a suitable NXI chassis.
What resolution is available in the ±200 mV range?
The specified resolution is 0.1 µV in the ±200 mV range. Resolution in the other measurement ranges is 0.1 mV.
Which trigger types are supported?
Software and external triggering are available. Depending on the acquisition mode, users can configure edge, trigger level, hysteresis, delay and the position of samples before or after the event.
How is an external sampling clock connected?
The external clock source connects to the NXI bus terminal of a suitable chassis. The exact pin assignment depends on the chassis used.
Can the module be used for automotive electronics testing?
Yes. It can acquire multiple analogue signals from vehicle electronics or controllers in parallel and align the measurement with a test event by triggering.
Can it be used in industrial control tests?
Yes. Selectable voltage ranges acquire analogue control and feedback signals, while LAN, CAN and the supported protocols provide system connectivity.
Is the series intended for teaching and research?
Yes. Multi-channel acquisition, range selection and configurable trigger functions support experimental measurement setups and analysis of analogue signal traces.
Technical consultation and project enquiry
To select between NXI-6102 and NXI-6103, provide the maximum signal excursion, number of measurement channels, required sampling rate, and trigger and clock requirements. Also state whether standalone operation or integration into an NXI chassis is planned and which communication interface will be used.
Downloads "NXI-6102/6103"
