Siemens SLC Devices include polarity insensitive
Dets, TRIs, Pull Stations, Call Points, Conventional
Zone Modules, etc.
All NACs provided by all PAD-5s on this circuit
must serve a single notification zone. A
maximum of 30 SLCs can be connected between
PAD-5s, or any other isolating devices along the
Class B circuit.
PAD-5 is a polarity sensitive and isolating device.