001package jmri.jmrix.secsi;
002
003import jmri.implementation.AbstractSensor;
004
005/**
006 * Extend jmri.AbstractSensor for serial systems.
007 *
008 * @author Bob Jacobsen Copyright (C) 2003, 2006, 2007, 2008
009 */
010public class SerialSensor extends AbstractSensor {
011
012    public SerialSensor(String systemName, SecsiSystemConnectionMemo _memo) {
013        super(systemName);
014        _knownState = UNKNOWN;
015    }
016
017    public SerialSensor(String systemName, String userName, SecsiSystemConnectionMemo _memo) {
018        super(systemName, userName);
019        _knownState = UNKNOWN;
020    }
021
022    /**
023     * Request an update on status.
024     * <p>
025     * Since status is continually being updated, this isn't active now.
026     * Eventually, we may want to have this move the related AIU to the top of
027     * the polling queue.
028     */
029    @Override
030    public void requestUpdateFromLayout() {
031    }
032
033}