Allen-Bradley 1745-C3 SLC 150 Interconnect Cable

Configured for interconnecting high-speed input modules to expansion units in Allen-Bradley SLC 150 platforms, the Allen-Bradley 1745-C3 (1745-C3 PLC Interconnect Cable) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

Hardware Specifications

Allen-Bradley Technical Characteristics

• Backplane Bus Communication Velocity: The 1745-C3 utilizes twisted-pair signal routing across a 20-pin to 10-pin interface layout, minimizing crosstalk and signal propagation delay between high-speed input hardware and expansion backplane logic.
• I/O Density Scaling: Enables modular system expansion by connecting high-speed input functions directly to downstream expansion units without signal attenuation or deterministic execution delays.

Frequently Asked Questions

Q: Can the 1745-C3 cable be hot-swapped while the SLC 150 processor unit is powered? A: No. The 1745-C3 carries critical backplane signal paths between modules. Disconnecting or connecting this assembly under power can cause CPU fault states, logic disruption, or electrical stress on internal components.

Q: What is the maximum voltage rating for the 1745-C3 interconnect cable conductors? A: The conductors within the 1745-C3 assembly are rated for a maximum line voltage of 70 V max.

Q: Can the 1745-C3 cable be modified or extended for longer cable runs? A: No. Extending or splicing the 1745-C3 alters line impedance and propagation delay, which degrades deterministic communication velocity and high-speed pulse processing across the backplane bus.

Field Installation Guidelines

1. Isolate primary system power from the SLC 150 processor and all associated expansion chassis before installing or removing the 1745-C3 cable.
2. Verify pin orientation on both the 20-pin header and 10-pin connector prior to insertion to prevent pin deformation or misaligned contact seating.
3. Ensure the cable route maintains a minimum bend radius of 1.0 in (25.4 mm) to avoid strain on termination points.
4. Separate the interconnect cable from high-voltage AC conductors, motor output wiring, and heavy inductive loads to prevent noise coupling.