If using the D262, with the D260 base, 20 smokes can be applied to loop B
If using DS200, DS200HD, with the MB200-2W base 10 smokes can be applied to loop B.
System Sensor DH,2451,2451TH,23001400,2400,2400TH,2400TH, and the 2300T, 10 smokes can be applied to loop B.