1. General Description

2. Product Identification

• Model Number: 170MCI02120

• Manufacturer: Schneider Electric (Modicon)

• Product Line: Modicon Momentum

• Protocol: Modbus Plus (MB+) / RS485

• Application: IP20 T‑junction, cluster‑mode interconnection

• Length: 3 m (9.84 ft)

• Connectors: 2 × male RJ45 (shielded, MB+ pinout)

• Cable Type: Shielded twisted pair (RS485 differential signaling)

• Weight: ~0.16 kg (0.35 lb)

• Warranty: 18 months

• Country of Origin: France

• Status: Active (as of 2026)

3. Electrical & Mechanical Specifications

• Interface: RJ45 (shielded, MB+ pinout)

• Wiring: Factory‑prewired, no user wiring required

• Shielding: 100% foil + braid shield (EMI/RFI immunity)

• Conductor: 2 twisted pairs (RS485 differential signaling)

• Insulation: Industrial PVC (gray)

• Bend Radius: ≥ 8× cable diameter

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

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

• Humidity: 5%–80% (non‑condensing)

• Altitude: Up to 1,000 m above sea level (no derating)

• Protection Class: IP20

• Certifications: CE, RoHS, UL, cUL, CSA; California Prop 65 (lead warning)

4. Compatibility

• Platforms: Modicon Momentum (170 series), Premium, Quantum

• Devices: MB+ communication adapters (e.g., 170MCIxxx), Momentum I/O bases with MB+ ports

• Topologies: MB+ network trunk/drop, IP20 T‑junction, cluster‑mode (multi‑adapter linking)

• Software: Unity Pro, MB+ Network Configurator

5. Key Features

• Plug‑and‑play: Pre‑tested factory assembly

• 3 m length: Versatile for standard rack and panel layouts

• Shielded RJ45: Robust connection for industrial environments

• Cluster‑mode ready: Links multiple MB+ adapters in a rack

• Hot‑swap compatible: Supports module replacement without network shutdown

• MB+ 1 Mbps: Supports full MB+ deterministic communication

6. Applications

• Inter‑adapter MB+ links in Momentum racks

• IP20 T‑junction connections for MB+ networks

• Cluster‑mode I/O and controller communication

• High‑speed distributed I/O systems

• Factory floor automation and process control

7. Installation

1. Power off all connected modules.

2. Align the RJ45 male connector with the MB+ port on the first module.

3. Insert firmly until the latch clicks (ensures shield contact).

4. Repeat for the second module’s MB+ port.

5. Verify both connectors are fully seated and locked.

6. Power on the system; check MB+ network status in PLC software.

7. For T‑junction: Connect one end to the trunk port, the other to the drop module.

8. Maintenance

• Inspect RJ45 connectors quarterly for wear, dirt, or bent pins.

• Keep cable free of heavy mechanical stress, sharp bends, or crushing.

• Verify shield integrity; avoid grounding both ends (follow MB+ grounding rules).

• Replace cable if shielding is damaged or connectors show corrosion.

9. Safety Notes

• Installation/service only by qualified personnel.

• Disconnect power before connecting/disconnecting the cable.

• For indoor industrial use only; avoid direct sunlight and moisture.

• Do not use if cable insulation or connectors are damaged.

• Dispose of per local e‑waste regulations.

10. Troubleshooting

• No MB+ communication:

  • Check both RJ45 connectors are fully latched.

  • Verify MB+ network power and termination (120 Ω at trunk ends).

  • Confirm module MB+ addresses are unique and configured correctly.

• Intermittent communication:

  • Inspect for loose RJ45 latches or bent pins.

  • Check for excessive vibration or cable movement.

  • Verify shield is properly connected at both ends.