Schneider Electric TSX CDP Series PLC Programming Cables: TSXCDP503

Technical Dossier

Product Details And Specifications

Schneider Electric TSX CDP Series Technical Notes

The Schneider Electric TSX CDP series comprises the standard programming and terminal connection cables for the Modicon Premium and Modicon Quantum PLC platforms — two of the most widely deployed distributed control architectures in global heavy industry. TSX CDP cables are the physical interface between engineering workstations running PL7 Pro or Unity Pro / EcoStruxure Control Expert software and the CPU modules installed in TSX racks across chemical plants, nuclear facilities, oil refineries, water treatment stations, and continuous-process manufacturing lines. Installed base counts for Modicon Premium and Quantum systems run into the hundreds of thousands of units globally, making TSX CDP cables a long-term maintenance consumable with sustained demand well beyond the series' commercial end-of-life.

The Evolution of TSX CDP Architecture

The TSX CDP cable family was introduced alongside the Modicon TSX Premium platform in the early 1990s, providing RS-232 and later USB-to-terminal port connectivity for CPU programming access. Early variants used a proprietary mini-DIN terminal port connector on the PLC side, mating with standard DB9 or DB25 serial connectors on the PC side. As PC hardware evolved through the 2000s and RS-232 serial ports were phased out, Schneider Electric introduced USB-variant cables and PC-side USB adapters to maintain compatibility with modern laptops and industrial PCs.

The TSX Premium platform (TSX P57 CPU family) and TSX Micro platform (TSX 37 CPU family) share the same terminal port pinout, making TSX CDP cables cross-compatible across both sub-platforms. The Modicon Quantum platform uses a separate Modbus+ and Ethernet programming interface, but certain TSX CDP variants also support Quantum CPU terminal port access. With Schneider Electric having announced end-of-commercialization for the Modicon Premium platform, TSX CDP cables have transitioned from active catalog items to critical long-term spare parts for installed-base maintenance.

TSX CDP Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified TSX CDP series cable range. Models are classified by interface type and target platform:

RS-232 Serial Programming Cables (PC DB9 → PLC Terminal Port)

• TSXCDP053: RS-232 programming cable, 0.5 m, DB9 female to mini-DIN, for TSX Premium / TSX Micro CPUs
• TSXCDP103: RS-232 programming cable, 1.0 m, DB9 female to mini-DIN, standard bench-programming length
• TSXCDP203: RS-232 programming cable, 2.0 m, DB9 female to mini-DIN, extended reach for panel-mounted PLCs
• TSXCDP503: RS-232 programming cable, 5.0 m, DB9 female to mini-DIN, long-run field programming access for TSX Premium / TSX Micro
• TSXCDP1003: RS-232 programming cable, 10.0 m, DB9 female to mini-DIN, maximum-length serial variant for remote rack access

USB Programming Cables (PC USB-A → PLC Terminal Port)

• TSXCUSB485: USB to RS-485 converter cable, for Modbus serial network programming and diagnostics
• TSXCUSBMBP: USB to Modbus Plus adapter, for Modicon Quantum and Momentum Modbus+ network access
• BMXXCAUSBH018: USB programming cable, 1.8 m, USB-A to mini-B, for Modicon M340 CPU USB port (cross-platform reference)

Terminal Port Extension & Adapter Cables

• TSXCCP811: RS-232 null-modem extension cable, for daisy-chaining terminal port access in multi-rack configurations
• TSXCCP800: RS-232 straight-through extension cable, 3.0 m, for terminal port reach extension
• TSXCCP801: RS-232 straight-through extension cable, 5.0 m
• TSXCCP802: RS-232 straight-through extension cable, 10.0 m

Modbus / Uni-Telway Network Cables

• TSXCSA100: Uni-Telway bus cable, 1.0 m, for connecting operator terminals to TSX Premium Uni-Telway port
• TSXCSA200: Uni-Telway bus cable, 2.0 m
• TSXCSA500: Uni-Telway bus cable, 5.0 m, for panel-to-panel Uni-Telway segment wiring
• TSXCSA1000: Uni-Telway bus cable, 10.0 m, maximum-length Uni-Telway segment cable
• TSXCSA015: Uni-Telway T-junction adapter, for multi-drop terminal connections on a single Uni-Telway segment

Sourcing Hard-to-Find & Obsolete TSX CDP Parts

Schneider Electric has progressively moved the Modicon Premium platform to end-of-commercialization status, with TSX CDP cables no longer available through standard distribution channels in many regions. For operators maintaining Premium and TSX Micro installations — particularly in nuclear, petrochemical, and water infrastructure where platform migration is constrained by regulatory approval cycles — sourcing original TSX CDP cables from specialist aftermarket suppliers is the only viable path to maintaining programming and diagnostic access.

Quality Control for the TSX CDP Range

TSX CDP cables are passive assemblies, but connector integrity and cable shielding are critical for reliable programming sessions — particularly in electrically noisy industrial environments. DriveKNMS applies the following inspection protocol to all TSX CDP units:

• Continuity test: Full pin-to-pin continuity verification across all signal conductors using a calibrated cable tester
• Shield integrity check: Drain wire and foil shield continuity confirmed end-to-end
• Connector inspection: Mini-DIN and DB9 connector housings inspected for pin damage, corrosion, and locking tab integrity
• Functional validation: Where test equipment is available, cables are validated against a live TSX Premium CPU terminal port to confirm PL7 Pro / Unity Pro communication establishment
• Packaging: Units are individually bagged with desiccant and labeled with inspection date and technician ID prior to dispatch