BV7049 is an RS-485 / optical fiber data connection cable for the German HIMA H41q/H51q safety system, used for connecting the redundant system interface to a PC / optical fiber link, and supporting SIL3 level safety communication. Basic Information

Model: BV7049 (standard length 4m, customizable longer)

Brand/series: HIMA / H41q, H51q

Function: Redundant system interface ↔ PC 485 PCI card or fiber (FO)

Usage: System debugging, data upload/download, remote maintenance, fiber expansion

Specification parameters

Cable type: LifYCY 3×2×0.08mm Special Shielded Twisted Pair

Connector: Both ends 9-pin MIN-D connector (RS-485)

Standard length: 4 m (optional 0.3 m short version)

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

Pin definition (9 pins):

1: Empty; 2: Empty; 3: A/A'; 4: Empty; 5: C/C'; 6: Empty; 7: Empty; 8: B/B'; 9: Empty

Temperature: -40°C ~ +105°C

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

Key features

Special for redundant systems: Compatible with H41q/H51q redundant architecture, supports synchronous and debugging of primary and backup CPUs.

Dual interface compatibility: Can be directly connected to the RS-485 card of a PC, or converted for extending the communication distance with optical fibers.

Industrial-grade shielding: Full shielding structure, stable communication and no packet loss in strong interference environments.

Plug-and-play: Pre-installed dedicated connector, no on-site crimping required, quick deployment.

Typical applications

System debugging: Connect H41q/H51q redundant system to PC, for program download, parameter configuration, and fault diagnosis.

Data interaction: Upload system logs and running data, download updated programs.

Remote maintenance: Through optical fiber extension, realize remote SIL3 system maintenance.

Cross-site communication: 4-meter length compatible for short-range redundant communication between cabinets.