BV7051 is a fiber-optic (FO) data cable for the H7506 bus terminal of the German HIMA H41q/H51q safety system. It is used to connect the H7506 interface module with the fiber link, enabling long-distance SIL3-level safety communication. Basic Information

Model: BV7051 (standard lengths of 0.5m/2m/4m, customizable)

Brand/series: HIMA / H41q, H51q

Function: Bus terminal H7506 ↔ Optical Fiber (FO) link

Application: Optical fiber expansion, long-distance redundant communication, system remote maintenance

Specification parameters

Cable type: LifYCY 6×2×0.08mm special shielded twisted pair

Connector: One end is a 25-pin MIN-D plug (connected to H7506), and the other end is a 9-pin MIN-D plug (connected to the optical fiber module)

Standard length: 0.5m, 2m, 4m

Communication: RS-485 differential, with a rate up to 115.2 kbps

Temperature: -40°C ~ +105°C

Certifications: CE, RoHS, meeting SIL3 anti-interference requirements

Key features

Special for fiber optic connection: Compatible with H7506 bus terminal, converting electrical signals to optical signals, extending communication distance to several kilometers.

Dual shielding anti-interference: Special 6-pair twisted pair + fully shielded structure, no packet loss in strong electromagnetic environment.

Redundant system compatibility: Compatible with H41q/H51q redundant architecture, supporting synchronous main and backup CPUs and remote debugging.

Plug-and-play: Pre-installed with special plugs, no on-site crimping required, quick deployment.

Typical applications

Long-distance redundant communication: H41q/H51q redundant system connects across cabinets / workshops via optical fiber.

Remote maintenance: After optical fiber expansion, remote program download and fault diagnosis for SIL3 system are possible.

Bus expansion: Connect H7506 module with optical fiber module to expand the system bus communication range.