22 NFS-320/E/C Installation Manual — P/N 52745:M2 7/1/14
Installation Connecting the Power Cables
Network Communications Module
If networking two or more control panels or network control annunciators, each unit requires a
Network Communications Module (NCM) or a High-Speed Network Communications Module
(HS-NCM); wire and fiber versions are available for each. The wire and/or fiber versions of the
NCM or HS-NCM can be installed in any standard option-board position (see Section 3.4,
“Installing Option Boards”; the default position is immediately to the right of the control panel.
1. Mount the NCM/HS-NCM in the selected position and screw firmly in place.
2. Connect J1 on the control panel to J3 on the NCM or J6 of the HS-NCM using the network
cable provided (P/N 75556) as described in the NCM Installation Document and the HS-NCM
Installation Document. Do not connect two NCM/HS-NCMs via NUP ports (“NUP to NUP”).
3. When installing the NCM: Connect Channel A and/or Channel B as described in the NCM
Installation Document.
When installing the HS-NCM: Connect Channel A to Channel B as described in the HS-
NCM Installation Document.
3.5 Connecting the Power Cables
3.5.1 Overview
Complete all mounting procedures and check all wiring before applying power. Electrical
connections include the following:
• Primary AC power source – 120 VAC, 50/60 Hz, 5.0 A from line voltage source (with NFS-
320E use 220-240 VAC, 50/60 Hz, 2.5 A). Overcurrent protection for this circuit must comply
with Article 760 of the National Electrical Code (NEC) and/or local codes. Use 12 AWG (3.31
mm
2
) wire (maximum) with a 600-volt rating.
• Secondary power source – 24 VDC from batteries, installed in the control panel (or in an
optional battery cabinet). Secondary (battery) power is required to support the system during
loss of primary power.
NOTE: See the Noti•Fire•Net Manual or the High-Speed XLS-NET Manual and NCM Installation
Document or the HS-NCM Installation Document for wiring diagrams and system configuration
information. See the BMP-1 Product Installation Drawing if considering mounting the module
behind blank module plate in a dress plate or annunciator backbox.
NOTE: Over-bending fiber-optic cable can damage it. Do not exceed a 3 inch (7.62 cm)
minimum bend radius.
NOTE: NCM hardware is not compatible with HS-NCM hardware and should not be mixed on
the same network.
WARNING:
Remove all power sources to equipment while connecting electrical components. Leave the
external, main power breaker OFF until installation of the entire system is complete.
WARNING:
Several sources of power can be connected to the control panel. Before servicing the control panel,
disconnect all sources of input power including the battery. While energized, the control panel and
associated equipment can be damaged by removing and/or inserting cards, modules, or
interconnecting cables.
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