How many addressable devices does the MXL support per SLC loop, and what is the total system point capacity?

The MXL-IQ supports up to 60 intelligent devices per analog loop (Page 12) [1].

The control panel can monitor a maximum of 4 analog loops, providing a total system capacity of 240 intelligent devices (Page 12) [1].

For general system identification, devices are assigned a two-part address consisting of a module address (up to 254) and a device address (up to 248) (Page 48) [1].