Nfc-Rm Remote Microphone; Nfc-50Da, Nfc-125Da, Nfc-50/100Da Distributed Audio Amplifiers - Honeywell NOTIFIER NFC-50/100 Instruction Manual

Installation

2.9 NFC-RM Remote Microphone

Connections are made from TB24, TB12, and TB22 on the NFC-50/100 main control board to TB3, TB2, and TB1 on the RM. If the
NFC-RM is the last device on the audio and data bus chain, signal terminations are required. For the external data bus, a removable
jumper must be on pins 1 and 2 of JS4. If the NFC-RM is not the last device, the jumper must be on pins 2 and 3 of JS4. For the external
audio riser, For the external audio riser, when the NFC-RM is the last device, termination ELR-15K must be on pins 4 and 5 on TB2. T-
taps and multiple home runs to the main control board are not allowed for the external data bus or the external data riser.
main control board
main control board

2.10 NFC-50DA, NFC-125DA, NFC-50/100DA Distributed Audio Amplifiers

SW2 on the NFC-50/100's display board must be set to the UP position if any remote audio boosters are installed on the system. Refer to
the NFC Distributed Audio Amplifier Manual, LS10027-001NF-E, for installation instructions.
40
external operator
interface power -
+ 24VDC
TB24
-
B
TB12
A
external
audio
riser
+
TB22
-
external data bus
Figure 2.27 Remote Microphone Wiring (Class B/Style Y)
+
TB24
-
external
data
bus
B
A
TB12
B
A
+
-
TB22
+
-
external
audio
riser
Figure 2.28 Remote Microphone Wiring (Class A/Style Z)
Notifier FirstCommand Series Manual — P/N LS10001-001NF-E:H 1/8/2018
to next operator
interface or amplifier
TB1
power
TB2
audio out
A
B
TB3
data bus
A
B
(shown jumpered
on pins 2 and 3)
external operator
interface power -
TB1
24VDC
power
TB2
audio out
A
B
TB3
data bus
A
B
(shown jumpered
NFC-RM Remote Microphone
RM board
JS4
RM board
JS4
on pins 2 and 3)