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The BS208 is an 8-slot SMD-type backplane for the Bachmann M1 automation system, providing a robust structural and electrical backbone for medium-to-large controller assemblies. It ensures secure module alignment, high-speed parallel bus communication, and reliable power distribution for a CPU and up to seven I/O or communication modules. Designed for industrial environments with high vibration and EMI, the BS208 combines mechanical stability with Class 1 grounding and shielding.
| Specification | Details |
|---|---|
| Model Identification | BS208 |
| Module Capacity | 8 Slots |
| Backplane Type | SMD 8-Slot Base Rack |
| Protection Class | Class 1 (Integrated grounding and shielding) |
| Dimensions (L×W×H) | 43.8 cm × 12.1 cm × 2.5 cm |
| Unit Weight | 0.7 kg |
| Operating Temperature | -30°C to +60°C |
Acts as the primary rack for CPUs and I/O expansion, supporting modules like AI204/2, CNT204, and safety modules.
High-speed parallel bus ensures microsecond-level deterministic communication between modules.
Class 1 protection and shielding make it suitable for metal cabinets and safety-critical automation.
ColdClimate variant available for condensation and extreme temperature resilience.
Expands over BS205 (5-slot) and BS207 (7-slot) variants.
Same height and depth as other BS200 series racks; width (43.8 cm) optimized for standard industrial enclosures.
Supports redundant power supplies to maintain stability in large automation setups.
Q: Are empty slots safe to leave exposed?
A: No. Use Bachmann BPC101 slot covers to protect the internal bus from dust, ESD, and maintain IP protection.
Q: Can I use redundant power supplies in the BS208?
A: Yes. Multiple power supply units (e.g., NT255) can be installed to provide redundancy and ensure stable operation for high-demand modules.