Bachmann|BEM211|Bus Expansion Module

Description
Bachmann BEM211 is a bus expansion module for M200 control systems, enabling high-speed distributed I/O connectivity up to 3 meters with minimal latency.

Features

• Supports daisy chain topology with up to 6 SubDevices
• Direct access to remote modules as local I/O
• Uses standard RJ45 connectors for easy wiring
• No special protocol required

Technical Specifications
Performance

• Max distance between stations: 3 m
• Access time: < 1.5 µs
• Supports up to 6 SubDevices
• Each SubDevice handles up to 15 M200 modules

Physical Layer

• Transmission medium: CAT7 special cable
• Connector type: RJ45

Power Supply

• Voltage range: 18 V DC to 34 V DC
• Power consumption: max 1.2 A at 24 V
• Nominal power: 17 W
• Output currents:
  • +5 V: 2 A
  • +15 V: 250 mA
  • -15 V: 200 mA
• Reverse polarity protection: Yes

Environmental

• Operating temperature: -30 °C to +60 °C
• Storage temperature: -40 °C to +85 °C
• Humidity (operation/storage): 5–95 % RH non-condensing
• Pollution degree: 2 per IEC 60664-1

Certifications

• Approvals: CE, UKCA, cULu