1. General Description

2. Product Identification

• Model Number: 170MCI02080 (also 170‑MCI‑020‑80)

• Manufacturer: Schneider Electric (Modicon)

• Product Line: Modicon Momentum

• Protocol: Modbus Plus (MB+) / RS485

• Application: IP20 T‑junction, long‑haul inter‑rack links

• Length: 10 m (≈30 ft)

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

• Cable Type: Shielded twisted pair (RS485 differential)

• Weight: ~1 lb (0.45 kg)

• Warranty: 18 months

• Country of Origin: USA

• Status: Active (as of 2026)

3. Electrical & Mechanical Specifications

• Interface: RJ45 (shielded, MB+ pinout)

• Wiring: Factory‑prewired, no field wiring

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

• Conductors: 2 twisted pairs (RS485 signaling)

• Insulation: Industrial PVC (gray)

• Bend Radius: ≥ 10× cable diameter

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

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

• Humidity: 5%–95% (non‑condensing)

• Protection Class: IP20

• Certifications: CE, RoHS, UL, cUL, CSA; California Prop 65

4. Compatibility

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

• Devices: MB+ adapters (170MCIxxx), Momentum I/O bases with MB+

• Topologies: MB+ trunk/drop, IP20 T‑junction, inter‑rack links

• Software: Unity Pro, MB+ Network Configurator

5. Key Features

• 10 m length: Ideal for inter‑rack and long‑distance runs

• Shielded RJ45: Industrial‑grade noise immunity

• Plug‑and‑play: Pre‑tested, no wiring required

• Hot‑swap compatible: Replace modules without network shutdown

• MB+ 1 Mbps: Full deterministic performance at maximum length

• Cluster‑mode ready: Connect multiple adapters across racks

6. Applications

• Inter‑rack MB+ communication in large automation systems

• IP20 T‑junction connections for extended MB+ networks

• Remote I/O links between Momentum racks

• High‑speed distributed I/O and peer‑to‑peer control

• Factory floor and process control systems

7. Installation

1. Power off all connected devices.

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

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

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

5. Verify both connectors are fully seated and locked.

6. Route cable with gentle bends; avoid sharp corners or crushing.

7. Power on system; verify MB+ network status in PLC software.

8. For T‑junction: Connect one end to trunk, other to drop module.

8. Maintenance

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

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

• Maintain shield integrity; follow MB+ grounding rules (single‑end ground).

• Replace cable if insulation, shielding, or connectors are damaged.

9. Safety Notes

• Installation/service only by qualified personnel.

• Disconnect power before connecting/disconnecting the cable.

• Indoor industrial use only; avoid direct sunlight, moisture, and chemicals.

• Do not use if cable or connectors show damage.

• 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 unique MB+ addresses and correct network configuration.

• Intermittent communication:

  • Inspect for loose latches, bent pins, or damaged shielding.

  • Check for excessive vibration or cable movement.

  • Verify proper shield grounding (single end only).