Multicrest
fire alarm system

TMFRRU004-SCM4

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

Description
The Single Contact Module (FRRU004-SCM4) is used to monitor the contact status of a device that contains a Normally-open contact (i.e, pullstation, waterflow switch, etc). The FRRU004-SCM4 can be programmed in the panel to supervise either a normally open or Normally-closed
contact on the Fire Alarm Control Panel (FACP). When the Normally-open contact is selected, and the contact is closed, the FRRU004-SCM4
reports its condition to FACP. Likewise when the Normally-closed contact is set as supervising condition, and the contact is opened, theFRRU004-SCM4 reports its condition to FACP. FRRU004-SCM4 supervises an open circuit of wiring connected to the terminal C and NO.
FRRU004-SCM4 employs one red LED to indicate the status. In normal condition, the LED flashes. When the contact is activated, the LED willturn on constantly. In case of trouble, the LED will turn off.

Ordering Information
Model no. FRRU004-SCM4

Specifications
No.
12345678910

Item
Rated voltage range of SLC input power (S+,S-)
Maximum SLC 24 VDC standby current (S+,S-)
Maximum SLC 24 VDC alarm current (S+,S-)
IDC input circuit wiring styleEnd-of-line resistor for IDC
Maximum wiring resistance of IDC
Maximum wiring capacitance of IDC
Operating temperature range
Operating humidity range
Dimensions

11

Applicable electrical box for installation

Specification
22.0 to 24.0V
250µA1mA
Class B (Style B)
5.1kΩ, 1/2W
100Ω
1µF
0°C to 49°C (32°F to 120°F)
0 to 93% (non-condensing)
106mm (4.17 inches) (H) × 106mm (4.17 inches) (W) × 29mm (1.14 inch) (D)North American 64mm (2-1/2 inches) deep 2-gang box
Standard 4 inches square box 38mm (1-1/2 inch) deep box

Setting the Address
Each addressable module, smoke detector, heat detector and combination detector must have the address set before connecting the device tothe Signaling Line Circuit (SLC) loop. The address is set using the hand held device programmer or the addressing feature on the control panel.

Installation
Figure 1: Installation into the compatible electrical box

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

From FACP or
previous module

End of line resistor
5.1k ohm 1/2W

SLC Loop

CNO
Z

S+
S-

To the next
moduleLED

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

From FACP or
previous module

Only one normally-closed contact

SLC Loop
To the next
moduleCNOZS+SLEDNote: End-of-line resister is not required

NOTE・The information contained herein does not purport to cover all the details or variations of the equipment described, nor to provide for every
possible contingency that may be met in connection with its installation, operation or maintenance.
・Specifications are subject to change without notice. Contact Nohmi before relying on the information.
・Actual performance is based on proper application of the product by a qualified professional.
・Should further information be required or should particular concerns arise that are not covered sufficiently for the purchaser’s purposes, thematter should be referred to Nohmi or your nearest distributor.

Contact• Head Office: 4-7-3 Kudan-Minami, Chiyoda-ku, Tokyo
102-8277, Japan• Phone: (81) 3 - 3265 - 0231
• F A X: (81) 3 - 3265 - 5348
URL http://www.nohmi.co.jp/english/

Catalog Number 131020Ⓓ-F-15901