NOHMI BOSAI FRRU004-SCM4 Single Contact Module

Manufacturer: NOHMI BOSAI
Model: FRRU004-SCM4

Features of FRRU004-SCM4

The Conventional Initiating Zone Module (FRRU004-CIZM4) supervises conventional initiating devices connected to an Initiating Device Circuit (IDC). This module detects an alarm and sends a report to the Fire Alarm Control Panel (FACP). It also monitors the wiring (A+, A-, B+, B- wires) and power supply to detect open circuits.In addition, the module works with IDC wiring styles compliant with NFPA Class B (Style B) and Class A (Style D). When the module detects an alarm, it locks the status until the system resets. If used in Class A (Style D) wiring, the module also latches if it detects open circuits.
Moreover, the FRRU004-CIZM4 has a red LED that indicates the status of the module and its wiring. In normal conditions, the LED flashes, while a constant light signals an alarm. An open circuit is shown by the LED turning off.

No.	Item	Specification
1	Rated voltage range of SLC input power (S+,S-)	22.0 to 24.0V
2	Maximum SLC 24 VDC standby current (S+,S-)	250μA
3	Maximum SLC 24 VDC alarm current (S+,S-)	1mA
4	IDC input circuit wiring style	Class B (Style B)
5	End-of-line resistor for IDC	5.1kΩ, 1/2W
6	Maximum wiring resistance of IDC	100Ω
7	Maximum wiring capacitance of IDC	1μF
8	Operating temperature range	0°C to 49°C (32°F to 120°F)
9	Operating humidity range	0 to 93% (non-condensing)
10	Dimensions	106mm (4.17 inches) (H) x 106mm (4.17 inches) (W) x 29mm (1.14 inch) (D)
11	Applicable electrical box for installation	North American 64mm (2-1/2 inches) deep 2-gang box, Standard 4 inches square box 38mm (1-1/2 inch) deep box