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    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

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CDM1250 Horn/Lights Alarm Activation

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Sep 30, 2007
Erie, PA
Hello all,

I have a Motorola CDM1250 that I am trying to set up to an alarm box at a local fire station. The alarm is activated when voltage is applied to a certain pin on the alarm board. The problem I am having is Pin 4 on the CDM1250 (which is set for External Alarm output) has constant voltage and when the radio receives a selective call, the voltage drops a few mili-volts. Is there a way to make the radio pulse a voltage for a certain period of time when a selective call is received to activate the alarm box and then drop the voltage after the call has been received? Is there any way this can be done on the CDM1250? In an old setup, we had the Minitor amplified base which was able to perform this action but it doesn't appear the CDM1250 can do the same thing? Any thoughts?

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