The Yokogawa AKB331-M010/SDV144, also cataloged as the AKB331 Signal Cable Assembly, operates as a dedicated hardware component for 24 VDC discrete signal interconnects within ProSafe-RS and CENTUM VP systems. It connects SDV144 digital input modules directly to field terminal blocks, switches, sensors, and relays. Configured with factory-terminated connectors and full electrostatic shielding, the assembly transfers field logic signals directly to I/O interfaces while suppressing electromagnetic noise across cabinet routing pathways.
| Parameter | Specification |
|---|---|
| Model | AKB331-M010/SDV144 |
| Brand | Yokogawa |
| Origin | China |
| Weight | 0.25 kg |
| Dimensions | 1.0 m length |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | Passive hardware assembly |
| Cable Type | Multi-core shielded cable assembly |
| Conductor Material | High-purity stranded copper |
| Operating Voltage | 24 VDC signal level (300 V max rating) |
| Shielding Structure | Aluminum foil and copper braid with drain wire |
| Outer Insulation | Flame-retardant PVC / XLPE |
| Protection Rating | IP20 |
| Module Compatibility | SDV144 Digital Input Modules |
Industrial DCS architectures demand robust noise rejection to prevent signal crosstalk between high-density input channels. The AKB331 cable assembly incorporates multi-core stranded conductors wrapped in combination aluminum foil and copper braid shielding to preserve signal integrity across 24 VDC discrete loops. Channel-to-channel isolation supported by the host SDV144 module prevents field-side electrical surges from propagating back to system control processors.
Q: What is the maximum voltage rating permitted for signal paths within the AKB331-M010 cable?
A: The physical cable insulation is rated for up to 300 V, though signal logic execution is configured for standard 24 VDC I/O loop applications.
Q: Can the AKB331-M010 cable assembly be routed outside instrument cabinets without additional conduit?
A: The cable features an IP20 rating and PVC insulation designed for indoor cabinet trays and ducts; exposed outdoor routing requires external protective conduit.
Q: Does the cable shield require dedicated grounding at both ends of the run?
A: To prevent ground loops, technicians must terminate the shield drain wire at the designated cabinet ground bar according to host system wiring guidelines.
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