NW-BM85-000 Bridge Multiplexer | Schneider Electric Modicon

NW-BM85-000 Product Snapshot

NW-BM85-000 is a bridge multiplexer by Schneider Electric.
It links multiple devices in Modicon systems.
Built for stable serial communication.

Main Advantages

• Handles multi-device data flow
• Supports Modbus master and slave
• Strong signal stability
• Flexible voltage input
• Easy rack installation

Configuration Breakdown

• Power Input
  • 115 V AC nominal
  • 230 V AC nominal
  • 50 / 60 Hz frequency
• Communication Layer
  • 4 × RS-232 serial ports
  • Modbus RTU messaging
  • Point-to-point and multipoint
• System Role
  • Bridge multiplexer
  • Protocol gateway option
  • Modbus Plus ready

Extended Technical Data

• Device class: DTE equipment
• Mounting: 19-inch rack
• Isolation rating: standard industrial
• Operating temp: 0–55°C
• Storage temp: -25–70°C
• Humidity: up to 95% non-condensing

Cable Connection Logic

• DTE to DCE
  • Straight-through modem cable
• DTE to DTE
  • Null-modem cable
• DCE to DCE
  • Tail circuit interface cable

Why Choose This Model

• Reduces wiring complexity
• Improves network clarity
• Supports legacy Modicon systems
• Long service life
• Easy field replacement

System Compatibility

Designed for Modicon platforms.
Works well with legacy PLC racks.
Can integrate with
Modicon Quantum
networks.

Warranty & Shipping

• 12-month quality warranty
• Fully tested before dispatch
• Fast shipping via FedEx, UPS, DHL

Professional FAQ

Q1: Is this unit good for old Modicon systems?

Yes. It is often used to extend life of older networks.

Q2: When should I use a null-modem cable?

Use it when connecting two DTE devices directly.

Q3: Can it work as a Modbus gateway?

Yes. It supports gateway-style data exchange.

Q4: How do I choose between bridge and gateway?

Choose bridge for serial sharing.
Choose gateway for protocol conversion.

Q5: Is rack mounting required?

No. But rack mounting improves airflow and wiring order.

Contact Information

Email:
info@oiltechcontrols.com
WhatsApp:
+86 158 8020 0923

Partner
Powergear X Automation Limited

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https://www.oiltechcontrols.com/

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