The ABB L700743A3-10 analog termination cable provides secure signal routing and termination for 4–20 mA current loops, 0–10 VDC or ±5 VDC voltage signals, and RTD temperature sensors within ABB Infi 90 control environments. Engineered with 10 twisted pairs and a 22 AWG conductor gauge, this 10-meter cable maintains reliable signal integrity across demanding industrial process control installations.

Model Configuration

The complete ordering code L700743A3-10 incorporates specific physical and electrical configuration parameters:

• Base Model: L700743A3
• Length Suffix (-10): Indicates a total cable length of 10 meters.
• Function: Analog termination and signal transmission for multi-channel I/O cards.

Hardware Specifications

Backplane Communication and Controller Compatibility

Designed specifically for the ABB Infi 90 distributed control system architecture, the L700743A3-10 links field termination units to controller or I/O module backplanes. The 10 twisted-pair configuration provides channel separation to minimize crosstalk in multi-loop analog implementations. The characteristic impedance of 100 ohms and low capacitance profile (under 60 pF/m) preserve measurement accuracy for low-level analog, voltage, and RTD temperature inputs over the 10-meter run.

Installation and Electrical Integration

• Routing and Bending: Maintain a minimum bend radius of at least 8 times the overall cable diameter during installation to prevent conductor stress or insulation damage.
• Signal Separation: Route analog signal cables away from high-voltage power lines and variable frequency drives to mitigate electromagnetic interference.
• Shielding and Grounding: Ensure proper shield termination at designated grounding bars to maintain common-mode noise rejection across the 4–20 mA loops.
• Environmental Limits: Verify that the installation area remains within the operating temperature range of -30 deg C to +70 deg C and 0–95% RH non-condensing humidity.
• Inspection: Inspect connectors and pins for debris or oxidation prior to mating with Infi 90 termination assemblies.

Frequently Asked Questions

• Q: What is the exact length of the L700743A3-10 cable?

  A: The "-10" suffix indicates a standard factory cable length of 10 meters.

• Q: What signal types are supported by this termination cable?

  A: It supports 4–20 mA current loops, 0–10 VDC and ±5 VDC voltage signals, and RTD sensors including Pt100 and Pt1000 configurations.

• Q: What is the conductor configuration inside the cable jacket?

  A: The cable contains 10 twisted pairs of 22 AWG conductors designed to reduce crosstalk in multi-channel analog loops.

• Q: What is the nominal characteristic impedance of the signal lines?

  A: The typical characteristic impedance is 100 ohms, matched for standard industrial analog control instrumentation.

• Q: What are the acceptable operating temperature limits?

  A: The cable operates reliably in environments ranging from -30 deg C to +70 deg C.

• Q: Can this cable be used outside of ABB Infi 90 systems?

  A: While physically compatible with matching connector interfaces, the cable is engineered specifically for Infi 90 analog termination schemes.

• Q: What minimum bend radius must be observed during installation?

  A: Installers must maintain a minimum bend radius of at least 8 times the overall cable diameter to protect internal conductors.

• Q: What is the weight of the packaged unit for shipping calculations?

  A: The individual product weight is 0.84 kg, with estimated shipping dimensions of 61 x 11 x 7.5 cm.