Product Description
Product Details
Manufacturer: BACHMANN
Model/Part Numbers: BES212, BES212/N
Description: Bus Expansion Modules
The BES212 series bus expansion modules enable a high-speed connection with minimal signal delay (less than 1.5 µs). These modules support up to six substations in a daisy chain topology, with each substation handling up to 15 M1 standard modules. For applications requiring additional substations
Key Features:
| Feature | Details |
|---|---|
| High-Speed Connection | Up to 3 m distance with <1.5 µs access time |
| Topology | Daisy chain, up to 6 substations |
| Module Handling per Substation | Up to 15 M1 standard modules |
| Wiring | RJ45 connectors |
| Integrated Power Supply | Optional (BES212/N) |
| Protocol | Not required for I/O access |
Bus Expansion Interface:
| Specification | Details |
|---|---|
| Line Length | 3 m |
| Transmission Medium | CAT7 special cable |
| Max. Number of Stations | 6 (BES212/x) or 15 (BES222/x) |
Integrated Power Supply (Optional):
| Specification | Details |
|---|---|
| Voltage Range | 18–34 V DC |
| Current Consumption | Max. 1.2 A at 24 V |
| Nominal Power | 17 W |
| Output Current (+5 V) | 2 A |
| Output Current (+15 V) | 250 mA |
| Output Current (-15 V) | 200 mA |
| Reverse Polarity Protection | Yes |
Ambient Conditions:
| Condition | Details |
|---|---|
| Operating Temperature | -30°C to +60°C |
| Rel. Humidity Operation | 5–95% without condensation |
| Storage Temperature | -40°C to +85°C |
| Rel. Humidity Storage | 5–95% without condensation |
Model Variants:
| Model | Description |
|---|---|
| BES212 | Bus extension slave module with 2 interfaces (up to 6 stations). |
| BES212/N | Bus extension slave module with 2 interfaces and integrated power supply 17W (up to 6 stations). |