DSC PC1864 with PS1520 Additional power supply

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Old 11-22-14, 01:21 PM
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DSC PC1864 with PS1520 Additional power supply

I am switching alarm companies and have installer code. There is a PS1520 hooked up as well. However, I can not easily see where this additional power supply output is connected to the PC1864 panel? On the panel itself there is the AC input and wires to the backup batteries... how do you typically hook up an additional power supply.
 
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Old 11-22-14, 03:16 PM
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Normally for this type of power supply, you only need to connect the negative terminal to the negative/common on the host panel so that the grounds are common. Then you connect what you are powering to the power supply.

http://www.alarmhow.net/manuals/DSC/...r%20Supply.pdf
 
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Old 11-22-14, 04:22 PM
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Would it be be powering a Pc5108 zone expander. I'm just having a hard time tracing the wires as they behind wall. The auxiliary power doesn't seem to connect to main board unless it splits to modules directly?
 
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Old 11-22-14, 07:04 PM
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Without physically setting eyes on the wiring, it's hard to say what they were using this power supply board for. This board may be a leftover from a previous system.
 
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