Product Description:

The CDB02.1B-ET-EC-EC-EC-L3-L3-EC-NN-FW control section is manufactured by Bosch Rexroth Indramat as part of the CDB Control Units series. Within a modular drive cabinet, this unit acts as the communication interface that links servo inverters to higher-level factory networks. It supports coordinated motion, diagnostics, and parameter management across automated lines.

Network integration is handled through a Multi-Ethernet interface that supports deterministic protocols on the same hardware layer. The board provides 2 galvanically isolated Ethernet ports so that in-line cabling can continue to additional drives without external switches. Each connector is the industry-standard RJ-45 housing, built around 100Base-TX signaling to deliver 100 Mbit/s full-duplex traffic suitable for real-time control frames. The specified 100 m maximum segment length allows the module to be positioned anywhere inside a standard control cabinet or on remote machine sections while still meeting attenuation limits. Eight port pins are assigned to data, power-down detection, and shielding continuity, ensuring error-free transceive operation in electrically noisy zones.

The communication hardware is qualified for CAT5e twisted-pair media, a rating that maintains impedance and crosstalk margins for the 100 Mbit/s signal class. An ITP foil-and-braid cable shield specification is recommended; this construction reduces capacitive coupling so encoder feedback and power leads can share common raceways. During operation, a Green link LED on each port confirms physical connectivity, while a Yellow status LED reports activity and collision events to maintenance staff without external testers. Together with the defined eight-pin mapping, these visual indicators make field commissioning and fault tracing straightforward and quick, completing the data-path features introduced above.