As a fire alarms service technician, you have a lot of questions about how a Signaling Line Circuit (SLC) works. Rules and regulations may show what’s required to make a good Fire Detection and Alarm System, but they don’t show much about how anything actually works.
The book “Make It Work – Understanding Signaling Line Circuits” answers many of your questions about how a SLC works.
Laptop and Desktop Version
96 Pages and Supplemented by Over 20 Drawings and Pictures
3.5 Megabyte PDF Download
- Just What Is a Signaling Line Circuit (SLC)?
- Are Addressable Fire Alarm Systems Different from Conventional Systems?
- Is the Signaling Line Circuit (SLC) a Data-Power Bus?
- * What is the Difference Between Electricity Flow and Signal or Power Flow?
- How Does Multiplexing of the Signaling Line Circuit Work?
- How does an SLC Carry Both Signals and Power?
- Is an EOL Resistor Needed for an Addressable System?
- How many T-Taps are allowed on a Signaling Line Circuit (SLC)?
- What is Voltage Free Interfacing?
- Can I use an Addressable Detector on a Conventional Panel?
- Why Can't You Reset a Trouble on a Fire Alarm Panel?
- Why Can't I Reset the Panel After Disconnecting the SLC?
- Why Won't the Panel Show the Detectors?
- How do I Fix a Damaged Loop?
- Can a Control Module & Pull Station Address be Sequential?
- What Happens to the SLC when a Device is Disconnected?
- Can an SLC Power a Horn or Strobe?
- Can the Input and Output Wires on a Speaker be Reversed?
- * How does Capacitance and Shielding Affect Wiring?
- * What is Capacitive Lag?
* Bonus Articles