L1-06D.31 – Call Waiting Call waiting feature allows customer to receive multiple calls on a single phone line When the central station operator calls to verify the alarm when the alarm panel is still communicating, the operator will hear ringing and assume the...
L1-06D.30 – Device Identification Various methods can be used to pinpoint the source of an alarm If too many devices activate the same signal, it can be difficult to locate the source on an alarm The number of devices wired to each zone should be limited to more...
L1-06D.29 – Signal Types How each zone will report to the monitoring station under given conditions (opens, shorts, normal) Alarm – Event that requires action (dispatch) Supervisory – System is off normal Trouble – System will not work as...
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