170XTS04000
May 23, 2026

170XTS04000

The 170XTS04000 is a shielded RS485/Modbus Plus T‑junction adapter that converts between 1×DB9 female and 2×RJ45 ports. It allows splitting or merging Modbus Plus / RS485 communication lines in industrial networks, enabling flexible daisy‑chain or star topologies with standard RJ45 field cables and legacy DB9 devices.

Description

1. General Description

The 170XTS04000 is a shielded RS485/Modbus Plus T‑junction adapter that converts between 1×DB9 female and 2×RJ45 ports. It allows splitting or merging Modbus Plus / RS485 communication lines in industrial networks, enabling flexible daisy‑chain or star topologies with standard RJ45 field cables and legacy DB9 devices.

2. Product Identification

  • Model: 170XTS04000

  • Manufacturer: Schneider Electric

  • Series: Modicon Momentum / Quantum / Premium / M221/M241/M251

  • Type: RS485 / Modbus Plus T‑connector (DB9 ↔ RJ45×2)

  • Ports: 1×DB9 female, 2×RJ45 (8P8C, shielded)

  • Function: Network branching, line splitting, DB9–RJ45 conversion

  • Cable Compatibility: Modbus Plus/RS485 shielded twisted pair

  • Protection Class: IP20 (mated)

  • Material: UL94 V‑0 flame retardant housing, metal shielded shell

  • Certifications: CE, UL, CSA, RoHS

  • Weight: Approx. 0.19 kg

  • Status: Discontinued (replaced by equivalent adapters)

3. Technical Specifications

Electrical

  • Protocol: Modbus Plus, RS485 (half‑duplex)

  • Data Rate: Up to 1 Mbps (Modbus Plus)

  • Contact Rating: 1 A, 50 VDC

  • Insulation Resistance: ≥ 500 MΩ

  • Contact Resistance: ≤ 20 mΩ

  • Shielding: 360° metal shield, continuous ground path

Mechanical

  • Insertion Cycles: ≥ 750 (RJ45), ≥ 500 (DB9)

  • Cable Diameter: 5–8 mm (RJ45 side)

  • Wire Gauge: 24–26 AWG (twisted pair)

  • Mounting: Free‑standing or DIN rail (optional clip)

Environmental

  • Operating Temperature: 0 °C to +60 °C

  • Storage Temperature: −40 °C to +85 °C

  • Relative Humidity: 5%–80%, non‑condensing

  • Vibration: 5 g RMS (IEC 60068‑2‑6)

4. Pinout (DB9 ↔ RJ45)

Modbus Plus / RS485

  • DB9 Female (Pin → Signal):
    • 1: Data− (B)

    • 2: Data+ (A)

    • 3: GND

    • 4–6: Not used

    • 7: Shield (GND)

    • 8–9: Not used

  • RJ45 (8P8C) (Pin → Signal):
    • 1–2: Data+ (A)

    • 3–6: Data− (B)

    • 4–5: GND

    • 7–8: Shield (GND)

5. Key Features

  • T‑junction function: Splits one DB9 line into two RJ45 lines (or vice versa)

  • Dual‑protocol support: Works with Modbus Plus and standard RS485

  • Fully shielded: Reduces EMI/RFI in industrial environments

  • Legacy compatibility: Connects DB9‑equipped PLCs to modern RJ45 cabling

  • Plug‑and‑play: No configuration required

  • Robust industrial design: For factory floor installation

6. Applications

  • Connecting Modicon Quantum/Momentum PLCs (DB9) to RJ45 Modbus Plus networks

  • Creating branch points in RS485/Modbus Plus daisy‑chain topologies

  • Interfacing legacy DB9 devices with new RJ45 field cables (170XTS02200)

  • Networking HMIs, I/O modules, and drives in high‑noise industrial areas

7. Installation Steps

  1. Power off the entire communication network before installation.

  2. Mount the 170XTS04000 in a clean, dry location (DIN rail or free‑standing).

  3. Connect the DB9 female port to the PLC/device DB9 male connector.

  4. Connect RJ45 Port 1 to the main network cable (from previous node).

  5. Connect RJ45 Port 2 to the next node or branch cable.

  6. Ensure all shields are properly connected (DB9 pin 7, RJ45 pins 7–8).

  7. Verify continuity and shield integrity with a multimeter.

  8. Power on the network and test communication.

8. Maintenance

  • Inspect ports periodically for dirt, corrosion, or bent pins.

  • Check shield connections for continuity (no loose strands).

  • Avoid excessive cable bending near the adapter.

  • Replace if housing is cracked or contacts are damaged.

9. Safety Instructions

  • Installation must be performed by qualified personnel.

  • Disconnect all power before wiring or modifying the network.

  • Do not expose to liquids, corrosive gases, or conductive dust.

  • Use only with rated voltage and communication protocols.

10. Troubleshooting

  • No communication:

    • Check DB9/RJ45 pinout (Data+/Data− alignment).

    • Verify shield connection (DB9 pin 7, RJ45 7–8).

    • Reseat connectors; check for bent pins.

  • Intermittent errors:

    • Ensure all connections are tight and shields are continuous.

    • Reduce nearby EMI sources (motors, drives).

    • Confirm cable length adheres to Modbus Plus limits.


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