The ALM-1 alarm accessory is an external adapter that connects directly to the accessory port of compatible Pelco devices and features four alarm inputs, one auxiliary (Form C) relay output, and one open collector auxiliary output that can be alternatively configured to operate on alarm. Up to four ALM-1 alarm accessories can be configured for one device, which may require a USB hub. Importantly, each accessory is automatically recognized and configured by the Pelco device to which it is connected.
ALM-1 Specifications PDF
ALM-1 User Manual
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