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| General Issues And Design Goals | Basic System Components | |
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Basic System Components > Fron-end unit SAM Connectivity SAM connectivity refers to the system´s preparedness to accept connections to all kinds of safeguard devices--at least to those that may be of public concern. SAM connectivity is available as a separate plug-in module; it is not part of the system‘s standard equipment. However, it is a cheap additional feature. There are three types of SAM channels:
Note that the character of a type D connection is restricted to one bit per device. The system would convey either an idle state or the alarm would be ON. The L facility is self-contained. Only the wire itself has to be ordered separately. The type A input is interrogated at specific intervals. The user can use a software menu to specify the polling period and the threshold level over a wide range. The number of bits to be assigned to the different SAM services is still open. We are open to YOUR proposals!
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| 5.2.1.1.7 |
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