Manufacturer: NOHMI BOSAI
Model: FRRU004-SCM4

Features of FRRU004-SCM4

• One simple LED for status indication
• NFPA Class A (Styles 6 & 7) and Class B (Style 4) for SLC
• NFPA Class A (Style D) and Class B (Style B) for IDC
• Electronic address setting
• Downsized unit
• Easy installation

Description

• 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.

Specifications of FRRU004-SCM4

Installation

Figure 1: Installation into the compatible electrical box

Wiring Diagram

Figure 2: Wiring diagram in case of supervising Normally-open contact

Figure 3: Wiring diagram in case of supervising Normally-closed contact (Not recognized as NFPA Initiating Device Circuit)