Installation and Maintenance Manual
Model 300SCW-1 Wall-Mounted Command Unit
14
Connecting a Low-Level Audio Output
See Figure 6. The 300SCW-1 also has a 1 Vpp audio output that can be coupled to the audio input of
another amplifier. This low-level output is available across terminals TB1-1 and TB1-3. It can also be
connected to an analog fiber optic transmitter so that audio can be transmitted over a fiber optic link in
an electrically noisy environment.
Figure 6 Low-level audio output connections
MODEL 300SCW-1
290A7344
AC POWER IN
TO EXTERNAL DEVICE
SIGNAL LINES SHIELDED
TWISTED PAIR
1
3
17 1
16
TB1
TB2
Connecting to Remote Switches for Tone Activation
The 300SCW-1 tones can be activated remotely by any normally open, low-current switch contacts with
a current capacity of at least 50 mA inductive. Figure 7 illustrates the connection of switch contacts to the
300SCW-1. The designations S1, S2, S3, and S4 represent remote switch contacts such as those found in
flow switches, program clocks, heat detectors, and smoke detectors. The remotely activated tone sounds as
long as the activating contacts remain closed.
Figure 7 Remote switch contacts for tone modules 1 through 4
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17
1
2
GND
TONE 1
TONE 2
TONE 3
TONE 4
3
4
5
6
7
8
9
10 11 12 13 14 15 16
TB1
TB2
300SCW-1
TONE #2
REAR VIEW
(WITHOUT COVER)
TONE #4
TONE #1
TONE #3
TONE MODULES
290A7341
OPTIONAL REMOTE SWITCH
CONTACTS
(CUSTOMER SUPPLIED)
S1
S2
S3
S4
Summary of Contents for SelecTone 300SCW-1
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