Installation Guide SMX-AUS
NS-MN-0030 / 11.2020 23
3.11 Maximum Wiring Impedance
The maximum wiring impedance of each connection at the SMX-AUS panel is as below.
Interfaces Wiring Impedance
Loop 1 40 Ω
Loop 2 40 Ω
NAC 1 (Special Application) 6 Ω @1*HRL / 3 Ω @2*HRL / 2 Ω @3*HRL
Monitor Input 1 100 Ω
Monitor Input 2 100 Ω
Ext Repeater 20 Ω
Maximum Capacitance: Maximum total capacitance for all SLC wiring (both between conductors and from any conductor to ground) should not exceed
0.5 µF. Maximum Resistance: Maximum 50 Ω (supervised and power-limited).
3.12 Terminal Voltage Ratings
Interfaces Status Typical Voltage Min. Voltage Max. Voltage Ripple Voltage Max. Load Max. Current
Loop 1 Standby 27 V 0 V 36 V ---
198 Sensors and Modules 500 mA
Alarm 27 V 0 V 36 V ---
Loop 2 Standby 27 V 0 V 36 V ---
198 Sensors and Modules 500 mA
Alarm 27 V 0 V 36 V ---
NAC Standby -16 V 0 V -18 V ---
3 Horns 150 mA
Alarm 24 V 19.78 V 26.08 V 200 mVpp
Ext Repeater Standby 3.3 V 0 V 3.6 V ---
--- ---
Alarm 3.3 V 0 V 3.6 V ---
AUX1 power supply --- 24 V 19.8 V 26.1 V 200 mVpp --- 500 mA
AUX3 power supply --- 24 V 19.8 V 26.1 V 200 mVpp --- 3.5 A
Charging Standby 28 V 26 V 29 V 200 mVpp 2 x 26 Ah batteries 1 A
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