The Yokogawa AKB336-M010, also cataloged as the AKB336 Signal Cable (20-20 pins), operates as a dedicated hardware component for PLC/DCS Signal Transmission Cable operations within CENTUM CS, CENTUM VP, ProSafe-RS, and FA-M3 platforms. The cable assembly provides point-to-point electrical interconnection to route analog and digital signals between multi-channel I/O modules and destination terminal boards. It implements a multi-layer shielding matrix to prevent external electromagnetic interference from degrading low-level voltage or current loops across medium-range cabinet runs.
| Parameter | Specification |
|---|---|
| Model | AKB336-M010 |
| Brand | Yokogawa |
| Platform | CENTUM CS / CENTUM VP / ProSafe-RS / FA-M3 |
| Origin | Japan |
| Weight | 1 to 3 kg depending on production batch |
| Dimensions | Cable length 10 m (Fixed length assembly) |
| Operating Temp | -20 to +70 deg C (Extended limits up to +80 deg C under specific conditions) |
| Storage Temp | -40 to +85 deg C |
| Connector Configuration | 20-pin to 20-pin dedicated industrial interface |
| Conductor Material | Tinned copper multi-strand cores |
| Insulation Material | Cross-linked polyethylene (XLPE) |
| Outer Jacket Material | Polyvinyl chloride (PVC) with optional low smoke zero halogen (LSZH) variants |
| Shielding Topology | Full coverage shielding consisting of aluminum foil wrap plus braided copper mesh |
| Operating Voltage | 300 V nominal rating |
| Test Dielectric Voltage | 2000 V AC for 1 minute duration |
| Nominal Impedance | 120 ohms plus or minus 10% |
| Mutual Capacitance | 90 pF/m |
| Minimum Bend Radius | 10 times the outer cable diameter |
| Flame Retardancy | IEC 60332-3 compliant |
The signal cable serves as the primary transmission bus routing process variables from field-mounted 4-20 mA HART loop protocol instruments to the central processing matrix. The implementation of high-coverage aluminum foil and braided copper wrap guarantees high channel-to-channel isolation limits across adjacent wire pairs, mitigating electromagnetic noise coupling between high-frequency digital lines and high-accuracy analog inputs. This layout maintains signal propagation stability for remote temperature loops requiring precise cold junction compensation parameters by blocking stray ambient electrical fields along the 10 m path.
Q: Can this cable assembly be altered or truncated in the field to match short cabinet runs?
A: No. The assembly features molded 20-pin connectors pre-terminated and factory-tested to maintain precise nominal impedance and shield continuity parameters; structural alterations will void the nominal test voltage ratings.
Q: What is the mechanical flex constraint for routing this cable inside high-density control enclosures?
A: The layout must adhere to a minimum bend radius of 10 times the cable's outer diameter to prevent internal mechanical tension from stressing the XLPE core insulation or fracturing the multi-strand tinned copper conductors.
Q: How does the cable jacket react under exposure to high-temperature plant environments?
A: The PVC outer jacket maintains structural stability up to a maximum continuous operating threshold of +70 deg C (with transient performance up to +80 deg C), beyond which the material properties degrade and compromise electrical isolation benchmarks.
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