Replacing Smoke Detectors: Red vs Yellow Wiring

1 week ago
 Red vs Yellow Wiring

Remodeling a recent home purchase and replacing all smoke detectors with smoke/CO detector combo units. I found the following wiring when I removed the detector unit:

Back of detector

The new hardwired detectors have black/white/red wires. Can I connect the red to the yellow for the same linking function? Is the yellow for linking with the other units? Also - does this yellow wire eventually run to one of my ancient Ademco security panels for system monitoring? The back of the Ademco panel:

Back of Ademco Panel

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