BV7044 is a 25-pin shielded RS-232 long-distance service cable for the German HIMA H41q/H51q safety system, used for connecting a PC to the H7505 interface converter, and supporting longer-distance debugging / diagnosis. Basic Information

Model: BV7044 (Material Number: 0524)

Brand/Series: HIMA / H41q, H51q

Function: PC (RS-232) ↔ H7505 Interface Converter (Debugging / Diagnostics / Maintenance)

Usage: Long-distance programming, downloading, online diagnosis (further distance than BV7043)

Specification Parameters

Core Wire: 4 × 0.25 mm², LiYCY shielded twisted pair

Connector:

PC end: MIN-D 9-pin (RS-232)

H7505 end: MIN-D 25-pin

Standard Length: 5 m, 15 m, 30 m (commonly 15 m)

Communication: RS-232, maximum 57.6 kbps (maximum 19.2 kbps at 30 m)

Temperature: -40°C ~ +105°C

Certifications: CE, RoHS

Key Features

Long-distance dedicated: Maximum 30 m, suitable for cross-cabinet / field-long-distance maintenance (BV7043 maximum 15 m).

9→25-pin conversion: Direct connection between PC 9-pin serial port and H7505 25-pin port, no adapter required.

Shielding anti-interference: LiYCY shielding structure, stable long-distance communication in industrial environment.

Plug-and-play: Pre-installed dedicated connectors at both ends, quick insertion and removal.

Typical Applications

Long-distance programming: PC in the control room, H7505 in the field cabinet, debugging within 30 m.

Online diagnosis: HIKA analyzer for remote monitoring of bus and equipment status.

Redundant system maintenance: Long-distance connection of main / backup H7505, debugging of redundant architecture.

Comparison with BV7043/BV7040

BV7044: 25 cores (9→25 pins), RS-232, long-distance PC→H7505, 5/15/30 m.

BV7043: 9 cores, RS-232, short-distance PC→system, 5/15 m.

BV7040: 25 cores, RS-485, terminal line between H7505 and H7506, 0.5/2/4 m.