Technical Specifications Overview
The table below details the core technical parameters of this base unit.
| Parameter | Specification |
|---|---|
| Model Number | NC1B08 |
| Product Type | Base Unit (Backplane) |
| Compatible Series | Fuji MICREX-SX Series |
| Number of Slots | 8 (for I/O and special modules) |
| Backplane Bus | Parallel high-speed bus |
| Data Transfer Rate | 1.5 MB/s (maximum) |
| Internal Power Distribution | 5 VDC / 3 A (total available) |
| External Power Supply | 24 VDC (for field device power) |
| Dimensions (W x H x D) | 305 mm x 110 mm x 70 mm |
| Weight | 0.65 kg |
| Mounting Type | DIN rail or screw mounting (two options) |
| Connector Type | 16-pin connector (for expansion cable) |
| Indicators | One green “PWR” LED (backplane power) |
Structural Design and Slot Configuration
The NC1B08 base unit serves as the physical and electrical backbone for the MICREX-SX control system. This base unit provides eight expansion slots, which accommodate a wide variety of I/O and function modules. A high-speed parallel bus runs across the entire backplane, ensuring fast and deterministic data exchange between the CPU and all connected modules.
Engineers can arrange modules in any order within the eight slots, offering complete flexibility for system design. The base unit also includes a 16-pin expansion connector on its right side. Consequently, users can connect an additional expansion base unit, increasing the total system capacity beyond eight modules.
Power Distribution and Capacity
This base unit distributes 5 VDC power to all installed modules, with a total available current of 3 A. The NC1B08 also routes external 24 VDC field power to the modules that require it for output driving or sensor excitation. Users must ensure that the total current consumption of all mounted modules does not exceed the 3 A limit, which guarantees stable system operation.
The module features a built-in power supply monitoring circuit. This circuit automatically detects any undervoltage condition and triggers an error flag to the CPU, preventing unreliable operation.
Physical Dimensions and Installation Options
The NC1B08 base unit measures 305 mm in width, 110 mm in height, and 70 mm in depth, providing a sturdy yet compact platform. It weighs only 0.65 kg, which simplifies handling during panel assembly. Two mounting methods—DIN rail clip or screw mounting—give engineers flexibility for different cabinet layouts.
The front panel includes a single green LED that illuminates when the backplane 5 VDC supply is present. This visual indicator helps technicians quickly confirm basic power availability during startup and troubleshooting.
Details
| Weight | 0.65 kg |
|---|---|
| Dimensions | 305 × 110 × 70 mm |
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