


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). |