Name: NW-BM85-000 Schneider Modicon Bridge Multiplexer 4 RS-232 Ports Best Price
SKU: NW-BM85-000
Price: 266.00 USD
Availability: InStock

Product details

NW-BM85-000 Bridge Multiplexer for Modicon Systems by Schneider Electric

The NW-BM85-000 is a bridge multiplexer from Schneider Electric. It sits in the Modicon product line. This unit links many devices on one network. It runs on 115V or 230V AC. That dual rating suits different power setups. Four RS-232 ports give room for several links. So it works well as a central hub in a control cabinet.

Core Specs

Maker: Schneider Electric
Model: NW-BM85-000
Family: Modicon
Type: Bridge Multiplexer
Mass: 5.00 lbs (2.27 kg)

Power

Input: 115/230V AC

Ports

Count: 4 ports
Style: RS-232

Modbus Support

Master ports: Yes
Slave ports: Yes
Messaging: Yes
Plus link option: Yes
Gateway option: Yes

Mounting

Rack mount: Yes

Cable Rules

This bridge is DTE gear.
Modems are DCE gear.
DTE to DCE: use a modem or straight cable.
DTE to DTE: use a null-modem cable.
DCE to DCE: use a tail circuit cable.

Expert Review

This bridge mux is a handy tool for mixed Modbus setups. Four RS-232 ports cut the need for extra boxes. The dual AC input means one part fits many sites. Rack mounting keeps the cabinet tidy. Modbus Plus and gateway options add reach. Yet it is an older design. Speeds stay modest. So plan it for control data, not heavy traffic. Still, for legacy Modicon plants, it solves real problems.

Manager’s Insight

Buy the NW-BM85-000 when a site already runs Modicon gear. It avoids a costly network rebuild. Ask for test data and clear photos first. Also check the cable type you need. A wrong cable wastes days. Keep one spare on the shelf. Fast ship times and a 12-month warranty cut risk. That combo keeps lines running.

Best Fits and Use Cases

Compare With Other Models

171CCC96030 – M1/M1E processor adapter with Ethernet
170INT11000 – Interbus adapter, SUPI 2, 500 kbit/s
NW-BM85-000 – bridge mux, 4 RS-232 ports, 115/230V AC

FAQ

Q: What does a bridge multiplexer do?
A: It links several devices so they can share one data path.
Q: Why does the voltage rating matter?
A: 115/230V AC lets one unit fit two power grids.
Q: How many devices can I attach?
A: Four RS-232 ports support four links.
Q: Does it work as a Modbus gateway?
A: Yes. Gateway use is a listed option.
Q: Can it join a Modbus Plus net?
A: Yes. That link option is supported.
Q: What cable do I need for a modem?
A: Use a modem or straight cable for DTE to DCE.
Q: What if both ends are DTE?
A: Then use a null-modem cable.
Q: How is it mounted?
A: It fits a standard rack.
Q: What does the 12-month warranty cover?
A: It covers defects in the unit.
Q: How soon does it ship?
A: Orders go out in 12 to 24 hours.
Q: Which carriers deliver it?
A: Fedex, UPS, and DHL handle the shipment.
Q: How do I choose the right seller?
A: Look for stock, test reports, and a clear return policy.