Before procurement teams confirm CU1521, they typically review Beckhoff Cu1123 0010, Beckhoff Cu2208 and Beckhoff Cu1123 to double-check performance ratings, stock availability, and supplier credibility carefully.
CU1521 - Beckhoff EtherCAT Components
CU1521 Beckhoff EtherCAT Components Technical Specifications

| Brand | Beckhoff |
| Product Type | EtherCAT Components |
| Product | CU1521 |
CU1521 Beckhoff EtherCAT Components Technical Specifications
| Specification | Value |
|---|---|
| Task within EtherCAT system | media transition from RJ45 copper physics to multi-mode fiber optic and back |
| Data transfer medium | multi-mode glass fiber 50/125 รยตm (MM); Ethernet/EtherCAT cable (min. Cat.5), shielded |
| Bus interface | 1 x SC Duplex; 1 x RJ45 |
| Distance between stations | max. 2000 m (100BASE-FX); max. 100 m (100BASE-TX) |
| Protocol | EtherCAT |
| Delay | approx. 1 ยตs |
| Data transfer rates | 100 Mbit/s |
| Configuration | per rotary switch |
| Power supply | 24 (18รขยยฆ30) V DC, 3-pin connection (+, -, PE) |
| Operating temperature | -25...+60ยฐC |
| Storage temperature | -40...+85ยฐC |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
| Dimensions (W x H x D) | 35 mm x 98.5 mm x 76.5 mm |




