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Installation of Option Modules
2.13 Installation of Option Modules
CAUTION: DISCONNECT POWER
!
BEFORE INSTALLING ANY MODULES OR CABLES, MAKE CERTAIN ALL POWER (AC AND DC) HAS BEEN
REMOVED AND BE SURE TO OBSERVE PROPER GROUNDING AND HANDLING PROCEDURES.
2.13.1 NFC-CE6 Circuit Expander Module
The NFC-CE6 Circuit Expander Module provides connections for up to six Style Z (Class A) or Style Y (Class B) speaker circuits. Cir-
cuits are configured through the web-based programming utility. Refer to Section 3.2.2 on page 53.
ELR required for Style Y -
Class B only
15K, 1 watt, P/N:ELR-15K
2.13.2 Audio Amplifier Module (NFC-BDA-25/70V)
Installation
The optional audio amplifier module can be used to provide a second 50 watt speaker circuit, increasing the total NFC-50/100 power to
100 watts, or it can be used as a backup amplifier. Refer to Section 3.2.2 on page 53 for programming the amplifier's operation. Connec-
tors J1 & J2 of the audio amplifier module plug into connectors J10 & J11, respectively, located at the upper right of the main control
board.
Figure 2.34 shows the installation of a NFC-BDA-25/70V onto an NFC-50/100 panel. The optional amplifier may be programmed and
wired for backup or for providing a second audio channel.
NOTE: Both the primary and secondary amplifiers must be same voltage output (25V or 70V).
1.
Remove mounting screws shown, from the main control board, and save (refer to Figure 2.34).
2.
Install four supplied metal standoffs in locations from which mounting screws were removed in Step 1.
3.
Secure the Audio Amplifier Module with the screws removed in Step 1. It is important to secure the module with the metal screws
in order to help protect against electrical transients.
4.
Plug the supplied power cable into J10 on the main control board, then into J1 on the audio amplifier. Plug the supplied control
cable into J11 on the main control board, then into J2 on the audio amplifier.
5.
Configure the slide switches, SW6 and SW7, per Figure 2.36. Do not use any other setting.
6.
Configure the slide switch, SW5, on the main control board for 25V or 70V operation. (70V operation requires Amplifier model
NFC-BDA-70V and the NFC-XRM-70V transformer.)
7.
Connect field wiring to TB21 on the main control board (if not using the amplifier as backup). Refer to Figure 2.15 on page 31 for
illustration of speaker connections if the amplifier is being used to expand system power to 100 watts (providing dual 50 watt
speaker circuits).
8.
Configure the Audio Amplifier for primary or backup amplifier operation through the web-based programming utility.
Notifier FirstCommand Series Manual — P/N LS10001-001NF-E:H 1/8/2018
Style Z (Class A) Circuit
Shield
NFC-CE6 mounted onto NFC-50/100
Figure 2.32 Circuit Expander Module Wiring
Installation
ECC-MCB-PCA
Rev.
43
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