The MS-9200UDLS features four onboard Notification Appliance Circuits (NACs) that provide 24 VDC nominal special application power (Page 15) [1].
Each circuit is rated for a maximum of 2.5 amps, though the total system current for all external devices in alarm must not exceed 6.0 amps (Page 33) [1].
Wiring Configurations: The panel comes standard with four Style Y (Class B) circuits. These can be converted to four Style Z (Class A) circuits using the optional ZNAC-92 converter module (Page 15, 33) [1].
End-of-Line Resistor: For Style Y (Class B) installations, a 4.7 k̩, ½ watt End-of-Line Resistor (ELR) is required (Page 15) [1].
Voltage Drop: Wiring must be designed so that the voltage drop does not exceed 1.2 VDC at the end of the line during alarm (Page 179) [1].
Synchronization: The panel supports synchronized strobes and includes a Remote Synchronization Output (TB2) that follows the programming of NAC1 to coordinate with remote power supplies (Page 34, 97) [1].
