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CU1128 | Beckhoff 8-Port EtherCAT Junction, RJ45, 100 Mbit/s, 24 V DC
- Regular price
- $529.00
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- $529.00
- Regular price
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Product Description P/N: CU1128
Description
The Beckhoff CU1128 is an 8-port EtherCAT junction designed to expand and structure EtherCAT networks in line, tree, or star topologies. Supporting 100 Mbit/s communication, it enables branching of EtherCAT segments through eight RJ45 ports. Operating from a 24 V DC supply, it offers reliable infrastructure connectivity for distributed automation systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | PLCs/Machine Control |
| Part Number | CU1128 |
| Subcategory | PLC Programming Terminal |
| Task in System | EtherCAT junction coupling |
| Protocol | EtherCAT |
| Data Medium | Ethernet/EtherCAT cable, min. Cat.5, shielded |
| Bus Interface | 8 × RJ45 |
| Data Transfer Rate | 100 Mbit/s |
| Port Delay | Approx. 1 µs per port |
| Max Distance Between Stations | 100 m (100BASE-TX) |
| Configuration | Not required |
| Power Supply | 24 V DC (18…30 V DC) |
| Current Consumption | Typ. 185 mA at 24 V DC |
| Protection Rating | IP20 |
| Operating Temperature | –25…+60 °C |
| Storage Temperature | –40…+85 °C |
| Relative Humidity | 95%, no condensation |
| Vibration/Shock Standards | EN 60068-2-6 / EN 60068-2-27 |
| EMC Compliance | EN 61000-6-2 / EN 61000-6-4 |
| Dimensions (W × H × D) | 122 × 100 × 38 mm |
| Approvals | CE, UL |
| Installation | Panel/cabinet, IP20 environment |
Information About CU1128
The CU1128 is an EtherCAT infrastructure module built for coupling and branching multiple EtherCAT junctions within a system. Housed in a compact IP20 enclosure, the unit integrates eight RJ45 interfaces that accept standard shielded Cat.5 or higher cables for fast 100BASE-TX communication. With a fixed port delay of approximately 1 µs per channel, it maintains deterministic communication performance across network segments. Designed for flexible topologies and plug-and-play operation, the CU1128 supports up to 100 m between stations and is commonly used in modular machine architectures, distributed I/O layouts, and decentralized control networks.
Key Features:
- Eight-port EtherCAT junction: Provides structured branching for flexible network layouts.
- 100 Mbit/s data transfer: Ensures fast and deterministic EtherCAT communication.
- Low port latency: Approx. 1 µs delay per port for real-time signal propagation.
- RJ45 connectivity: Standardized Ethernet interface with link/activity indication.
- Wide supply tolerance: Operates from 18–30 V DC with typical 185 mA consumption.
- No configuration required: Plug-and-play integration into EtherCAT systems.
- Compact industrial housing: IP20 enclosure suitable for control cabinets.
- Standards-compliant design: EMC, vibration, and shock tested for industrial environments.
The CU1128 delivers the reliability and precision required for EtherCAT network expansion in modern automation systems.
Description
The Beckhoff CU1128 is an 8-port EtherCAT junction designed to expand and structure EtherCAT networks in line, tree, or star topologies. Supporting 100 Mbit/s communication, it enables branching of EtherCAT segments through eight RJ45 ports. Operating from a 24 V DC supply, it offers reliable infrastructure connectivity for distributed automation systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | PLCs/Machine Control |
| Part Number | CU1128 |
| Subcategory | PLC Programming Terminal |
| Task in System | EtherCAT junction coupling |
| Protocol | EtherCAT |
| Data Medium | Ethernet/EtherCAT cable, min. Cat.5, shielded |
| Bus Interface | 8 × RJ45 |
| Data Transfer Rate | 100 Mbit/s |
| Port Delay | Approx. 1 µs per port |
| Max Distance Between Stations | 100 m (100BASE-TX) |
| Configuration | Not required |
| Power Supply | 24 V DC (18…30 V DC) |
| Current Consumption | Typ. 185 mA at 24 V DC |
| Protection Rating | IP20 |
| Operating Temperature | –25…+60 °C |
| Storage Temperature | –40…+85 °C |
| Relative Humidity | 95%, no condensation |
| Vibration/Shock Standards | EN 60068-2-6 / EN 60068-2-27 |
| EMC Compliance | EN 61000-6-2 / EN 61000-6-4 |
| Dimensions (W × H × D) | 122 × 100 × 38 mm |
| Approvals | CE, UL |
| Installation | Panel/cabinet, IP20 environment |
Information About CU1128
The CU1128 is an EtherCAT infrastructure module built for coupling and branching multiple EtherCAT junctions within a system. Housed in a compact IP20 enclosure, the unit integrates eight RJ45 interfaces that accept standard shielded Cat.5 or higher cables for fast 100BASE-TX communication. With a fixed port delay of approximately 1 µs per channel, it maintains deterministic communication performance across network segments. Designed for flexible topologies and plug-and-play operation, the CU1128 supports up to 100 m between stations and is commonly used in modular machine architectures, distributed I/O layouts, and decentralized control networks.
Key Features:
- Eight-port EtherCAT junction: Provides structured branching for flexible network layouts.
- 100 Mbit/s data transfer: Ensures fast and deterministic EtherCAT communication.
- Low port latency: Approx. 1 µs delay per port for real-time signal propagation.
- RJ45 connectivity: Standardized Ethernet interface with link/activity indication.
- Wide supply tolerance: Operates from 18–30 V DC with typical 185 mA consumption.
- No configuration required: Plug-and-play integration into EtherCAT systems.
- Compact industrial housing: IP20 enclosure suitable for control cabinets.
- Standards-compliant design: EMC, vibration, and shock tested for industrial environments.
The CU1128 delivers the reliability and precision required for EtherCAT network expansion in modern automation systems.