System expansion - adding door stations

[The Old Scholar]

I want to add a couple of third party door stations to an existing system, which consists of a main Comfort G2 panel and a remote SEP01. I need some help determining exactly what components are necessary and how they should be configured.

I assume I need a separate DM02 for each door station?

Assuming I need 2 DM02s, from a location point of view it would be easier to add 1 to the main panel and the other to the SEP. Is that possible or do both need locating in or adjacent to the main panel?

Thanks in advance for your advice.

[ident]

Yes, separate DM02 for each Door station

DM02 require 6 wires to Comfort (use CAT5) 12V, COM, KA, KB, Voice, MIC

The SEM has 12V, COM, KA, KB but not Voice MIC

So run the Voice and MIC wires in the same CAT5 cable from Comfort to SEM. This will allow you to connect the DM02 to the Slave as well