Unit installation

MR-2100/MR-2200 Installation Manual

Table 3: Addressable Input (Signaling Line Circuit)

Table 4: Notification Appliance Circuit Output Circuits

Table 5: Function Relay Output Circuits

Table 6: Power Outputs

Circuit / Model / Item Rating

Voltage 24Vdc nominal, 27.5Vdc maximum

Maximum loop length Refer to “3.5 Maximum Wiring Length

for Addressable Circuits” on page 20

Maximum loop current 450mA (momentary)

Maximum # of devices per loop 198 total (99 detector heads, 99 con-

trol/monitor modules)

Circuit / Model / Item Rating

MR-2100/MR-2200 Mainboard and

MRNC2 NAC Expander

Supervised and power limited

NAC1, NAC2* 24V full wave rectified DC, 2.0A maximum,

power limited.

End-of-line resistor (EOLR)

(for Class B wiring)

10kW, 1/4W, 5%

Maximum loop length Refer to “3.6 Maximum Wiring Length for

Bell Circuits” on page 20

NAC Current 1 MR-XPS NACs + AUX <

2.5A,

2 MR-XPS: 7A

Circuit / Model / Item Rating

MR-2100/MR-2200 Mainboard and

MRRL4 Relay Expander

RELAY1, RELAY2, RELAY3, RELAY4 Form C contact, 2A, 30Vdc resistive, power

limited source only.

Circuit / Model / Item Rating

MR-2100/MR-2200 Main board

AUX (x2) 24Vdc, filtered, regulated and power lim-

ited, 500mA maximum rated current (each),

600mVpp ripple.