40
Notifier FirstCommand Series Manual —
P/N LS10001-001NF-E:H 1/8/2018
Installation
NFC-RM Remote Microphone
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.
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.
+
-
+
-
+
-
+
-
B
A
A
B
+
-
+
-
A
B
main control board
RM board
TB24
TB12
TB22
TB3
data bus
TB2
audio out
TB1
power
external operator
interface power -
24VDC
external data bus
external
audio
riser
to next operator
interface or amplifier
rm
w
ir
e
b
.w
m
f
Figure 2.27 Remote Microphone Wiring (Class B/Style Y)
JS4
(shown jumpered
on pins 2 and 3)
+
-
+
-
+
-
+
-
B
A
B
A
A
B
A
B
+
-
+
-
main control board
RM board
TB24
TB12
TB22
TB3
data bus
TB2
audio out
TB1
power
external operator
interface power -
24VDC
external
data
bus
external
audio
riser
rm
w
ir
e
a
.w
m
f
Figure 2.28 Remote Microphone Wiring (Class A/Style Z)
JS4
(shown jumpered
on pins 2 and 3)
Summary of Contents for Notifier FirstCommand Series
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