ABB BC820K01 3BSE071501R1 CEX-Bus Interconnection Unit
Description:

BC820K01 is designed as ABB 800XA Control system CEX-Bus Interconnection Unit. 

The power supply and logic board contains the +3.3 V converter, logic, drivers for CEX-Bus interconnection and the connector for interconnection cable. In a fully redundant system with two interlinked BC820 and primary/backup CPU pair, the BC820 support online replacement of the CPU baseplate without disturbing the CEX traffic. If one BC820 has to be replaced it is necessary to power off both the adjacent Controller CPU and the external DC-supply for the BC820.

BC820 transmits the RCU-Link and extends the CEX-Bus and RCU-Link cable length up to 200 m.

Q&A:
1. What's the feature of the BC820K01?
• Supports RCU-link for PM858, PM862, PM866 and PM866A for redundant controller feature.
• Supports CEX-bus with up to 6 modules with each BC820.
• Supports redundant communication interface units.
• Supports extension of RCU-link and CEX-bus.
• Supports on-line replacement of the CPU.
• External DC-power supply.

2. What's the power supply requirements of BC820K01?
Power Supply Requirements: Inputs designated L+ and L-24 V nominal, variation between 19.2 V DC and 30 V DC.

3. What's the demensions of the module?
W 59 x H 185 x D 127.5 mm

Related items:
BC810K01
BC820K02