The Network Communications Module (NCM) provides NOTIFIER
Intelligent Fire Alarm Control Panels, and NCA and NCA-2 Network
Control Annunciators with a means to connect to NOTI•FIRE•NET™.
Two types of NCM are available: NCM-W for connecting nodes with
twisted-pair wire, and NCM-F for connecting nodes with fiber-optic
cable
NCM-W Features
- Supports twisted-pair wire medium.
- NFPA Style 4 (Class B) operation or NFPA Style 7 (Class A) operation.
- Two programmable data thresholds.
- Transformer coupling provides electrical isolation between nodes.
- Pluggable terminal wiring with strain relief.
- Pluggable service connector (feeds signal directly through) in the
- event that power must be removed from a node.
- 312.5 Kbaud transmission rate.
- Data is regenerated at each node.
- Two network ports to allow simultaneous connection to fire alarm control panel and to programming computer.
- Enables software and database upload/download over NOTI•FIRE•NET™.
- Repeaters are available to increase signal.
- Repeaters may be utilized to switch media type.
- Up to 3,000 feet (914.4 m) between nodes in a point-to-point fashion (actual distance varies with wire quality).
NCM-W Interconnections: When wiring consecutive NCM-W
boards, wiring may enter or exit at Port A or Port B. NCM-W port-
to-port wiring is not polarity sensitive; use of Port A or Port B is
arbitrary. An NCM-W may be connected to any of the following
devices: MIB-W, MIB-WF, NAM-232W, NCM-W (in another panel),
NCS-W network connection, RPT-W, RPT-WF.
NCM-W Switch Functions: The NCM-W provides two sets of
switches to simplify network setup. Enable ground fault detection
by setting “ON” switch SW103 (Channel A); switch SW101 (Chan-
nel B). Activate on-board end-of-line resistors by setting “ON”
switch SW100 (Channel A); switch 102 (Channel B). NOTE: Cor-
rect configuration is dependent on network design; refer to the
NOTI•FIRE•NET™ Network manual.
NCM-F Features
- Supports fiber-optic medium.
- NFPA Style 4 (Class B) or Style 7 (Class A) operation.
- Data is immune to all environmental noise.
- Optical isolation prevents ground loops.
- NOTI•FIRE•NET™ Network fiber-optic medium.
- Fiber type: 62.5/125 micrometers (multimode); or 50/125 micrometers (multimode).
- Maximum attenuation is 8 dB with 62.5/125 μm fiber and 4.2 dB with 50/125 μm fiber.
- Wavelength (1): 820 nanometers (use standard 850 nm fiber).
- Connectors: ST® style.
- 312.5 Kbaud transmission rate.
- Data is regenerated at each node.
- Two network ports to allow simultaneous connection to fire alarm control panel and to programming computer.
- Enables software and database upload/download over NOTI•FIRE•NET™.
- Repeaters are available to increase signal.
- Repeaters may be utilized to switch media type.
NCM-F Interconnections: When wiring consecutive nodes/
repeaters, fiber cable must exit one board on Transmit (TX) and
enter the next node/repeater on Receive (RX). The fiber-optic pair
(RX, TX) from Port A of one node/repeater may be connected to
either Port A or Port B of another node/repeater. An NCM-F may
be connected to any of the following devices: MIB-F, MIB-WF,
NAM-232F, another NCM-F, NCS-Fnetwork connection, RPT-F,
RPT-WF.
MIXING WIRE AND FIBER ON THE SAME NETWORK
In some networks, it may be necessary to mix twisted-pair wire and
fiber-optic cable. There are two solutions:
- In any network, an RPT-WF may be used as an interface between wire and fiber.
In a network that uses an AFP1010 or AM2020, a MIB-WF may be
used as the interface between wire and fiber.
MOUNTING
Both NCM-W and NCM-F can be installed in any standard chassis
such as the CHS-4L, CHS-M2, CHS-M3 or CHS-4N (see panel
sheets). Additionally, the NCM-W can be door-mounted on the
ADP-4B dress panel on a single-space blank plate (BMP-1) for
mounting in an CAB-4 Series cabinet.
Agency Listings and Approvals
The following listings and approvals apply to the NCM. In some
cases, certain modules or applications may not be listed by certain
approval agencies, or listing may be in process. Consult factory for
latest listing status.
- UL/ULC Listed: S635
- CSFM: 7165-0028:0224 (NFS2-3030), 7165-0028:0243 (NFS-320, NFS2-640)
- FM approved
- MEA approved
- FDNY: COA#6306, COA#6212
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