Product Description
Product Details
Manufacturer: BACHMANN
Model/Part Numbers: BES222, BES222/N
Description: Bus Expansion Modules
The BES222 series enables high-performance signal conditioning for up to 15 substations, ensuring efficient and minimal delay communication across distributed stations. With its modular and scalable design, these bus expansion modules support flexible installation with up to 3 m distances between stations. The BES222/N variant includes an integrated power supply for added convenience and functionality.
Key Features:
| Feature | Details |
|---|---|
| High-Performance Signal Conditioning | Supports up to 15 substations |
| Interfaces | Bus expansion master module: 1 interface Bus expansion slave module: 2 interfaces |
| Topology | Daisy chain |
| Signal Delay | Minimal |
| Distance Between Stations | Up to 3 m |
| Integrated Power Supply | Optional (BES222/N) |
| Watchdog | Integrated on slave modules |
Bus Expansion Interface:
| Specification | Details |
|---|---|
| Line Length | 3 m |
| Transmission Medium | CAT7 special cable |
| Max. Number of Stations | 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 |
|---|---|
| BES222 | Bus extension slave module with 2 interfaces (up to 15 stations). |
| BES222/N | Bus extension slave module with 2 interfaces and integrated power supply 17W (up to 15 stations). |