Multicrest
fire alarm system

TMFRRU004-MCM

MINIATURE CONTACT MODULEFeatures• NFPA Class A (Styles 6 & 7) and Class B (Style 4) for SLC• NFPA Class B (Style B) for IDC• Electronic address setting• Mini-sized unit
• Easy installation

Description
The Miniature Contact Module (FRRU004-MCM) is used to monitor the contact status of an initiating device that contains a normally open contact.
The FRRU004-MCM 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-MCM reports its condition to FACP. Likewise
when the Normally-closed contact is set to a supervising condition, and the contact is opened, the FRRU004-MCM reports its condition to FACP.
FRRU004-MCM supervises an open circuit of wiring connected to the terminal C and NO (NC) contact. The FRRU004-MCM is generally used tomonitor pull stations and other devices where the module is installed in an electrical box or enclosure. The contact utilizes a terminal block that iscovered in accordance with UL requirements to protect from inadvertent shorts and ground faults.

Ordering Information
Model no. FRRU004-MCM

Specifications
No.
1234567891011Item
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
Applicable electrical box for installation

Specification
22.0 to 24.0V250µA
250µA
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)
65.5mm (2.58 inches) (H) × 59mm (2.32 inches) (W) × 24mm (0.94 inch) (D)North American 64mm (2-1/2 inches) deep single-gang 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.

Wiring Diagram
Figure 1: Wiring diagram in case of supervising Normally-Open contact

From FACP or
previous module
SLC Loop
To the next
moduleSS+CNO(NC)End of line resistor
5.1k ohm 1/2W

Figure 2: Wiring diagram in case of supervising Normally-Closed contact (Not recognized as NFPA Initiating Device Circuit)

From FACP or
previous module
SLC Loop
To the next
moduleSS+CNO(NC)

Only one normally-closed contact

Note: End-of-line resister is not requiredNOTE・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-15801