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BIU (Detector)Tests

BIU (Detector)Tests

BIU (Detector)Tests

(OP)
Does anyone have any tips on testing BIUs (Detectors)?  Is there a tester manufactured for BIUs?  
Thanks -

RE: BIU (Detector)Tests

Please excuse my ignorance....but biu...is that similar to an inductance (impedance??) loop detector under ACP?  I am familiar with how to test those detectors, but am unfamiliar with the term BIU.

KRS Services
www.krs-services.com

RE: BIU (Detector)Tests

(OP)
The BIU (Bus Interface Unit) is a key component in a modern NEMA TS2 signal cabinet.The BIU is responsible for converting all the (formerly hardwired) inputs and outputs that need to be monitored by the controller into reliable, high-speed data packets. The only link between the BIU and the controller unit is the SDLC bus, which makes testing of individual
BIUs extremely difficult outside of a fully functional TS2 cabinet. Even then, only cursory testing is possible because built-in TS2 controller diagnostic capabilities are
extremely limited.  So how are you testing?

RE: BIU (Detector)Tests

We manufacture an automated BIU Tester - www.atsi-tester.com -

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