I've run some 8 core cable to PIRs and door contacts. In a couple of areas the PIRs and contacts are close to one another, so I ran a single 8 core to cover both. The PIR is 6 wire, the contacts are 4 wire.
Can I share a positive and negative between a PIR and a contact, then use the 4 cores for the PIR and the last 2 for the contact giving each a separate zone?
Can I share a positive and negative between a PIR and a contact, then use the 4 cores for the PIR and the last 2 for the contact giving each a separate zone?