NOTIFIER NCM-1 Noise Control Module Owner’s Manual
- June 9, 2024
- NOTIFIER
Table of Contents
NOTIFIER NCM-1 Noise Control Module Owner’s Manual
Overview
Note: For sytems without shield, cut white wires
GENERAL
The Notifier NCM-1 Noise Control Module (patented) is used to reduce common mode noise (noise that is present on both conductors) on the Signaling Line Circuit (SLC). The NCM-1 will allow the use of untwisted, unshielded wire on the SLC. Applications that have audio or fire fighters’ telephones require the use of twisted /shielded wiring for all circuits including the SLC. The NCM-1 may still be used in these applications to further reduce common mode noise.
FEATURES
- Mounts in Cabinet or External
- Use Multiple NCMs for T-Tapped non-shielded connections
- Connects directly to Signaling Circuit
- Pig-Tail Type Connections
- Patented Design (U.S. Patent # 5, 210, 523)
INSTALLATION
The NCM-1 wires directly in line with the SLC Loop. The NCM-1 includes pig- tail leads to connect the SLC circuit. Read the table following, to determine the maximum wiring distance. All distances are rated at maximum allowable distance and AWG wire.
AIM-200 / AM2020 / AFP1010 SLC WIRING SPECIFICATIONS (NO AUDIO)
CONDUIT?| SHIELD?| TWISTED PAIR?| MORE THAN ONE SLC LOOP?|
ACCEPTABLE WIRE AWG.| MAXIMUM DISTANCE PER LOOP
---|---|---|---|---|---
NO| NO| NO| YES| 12 – 18| 750 feet/loop
NO| 12 – 18| 1,000 feet
NO| NO| YES| YES or NO| 12 – 18| 2,000 feet Per Loop
NO| YES| NO| YES or NO| 12 – 18| 2,000 feet Per Loop
YES| YES| NO| YES| 12 – 18| 2,000 feet/loop
NO| 12 – 14| 5,000 feet
YES| NO| YES| YES| 12 – 18| 3,000 feet
NO| 12| 10,000 feet1
YES| NO| NO| YES| 12 – 18| 500 feet/loop
NO| 12 – 18| 2,000 feet
NO| YES| YES| YES| 12| 10,000 feet1
NO| 12| 10,000 feet1
YES| YES| YES| YES| 12| 10,000 feet1
Note:
A smaller gauge wire will support shorter distances as follows:
14 AWG. 8,000 ft. Maximum
16 AWG. 4,875 ft. Maximum
18 AWG. 3,225 ft. Maximum
This document is not intended to be used for installation purposes. We try to
keep our product information up to date and accurate. We can’t cover all
specific applications or anticipate all requirements. All specifications are
subject to change without notice.Formore information, contact NOTIFIER.
Phone: 203-484-7161
FAX: 203-484-7118
Clintonville Road, Northford, Connecticut 06472
ISO-9001
Engineering and Manufacturing Quality System Certified to International
Standard ISO-9001 12
Made in the U.S.A.
References
Read User Manual Online (PDF format)
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