Interfacing With A Central Amplified System; As A Typical Central Power System; Figure 9 Model 300Mb With Central Amplifier Connections; Figure 10 Typical Central Power System - Federal Signal Corporation D1 Series Installation And Maintenance Manual

Interfacing with a Central Amplified System

See Figure 9. In this installation the CommCenter is acting as an audio input to a central amplifier.
Message playback can be added to an existing centrally amplified paging system.

Figure 9 Model 300MB with central amplifier connections

GROUND
120/240 Vac
GAIN
10 1
CNTR
TB2
AUDIO INPUT

As a Typical Central Power System

See Figure 10. In this installation a 24 Vdc power supply, such as a Model PS600, is driving the
CommCenter and one or more speakers. For additional information, including jumper removal, see
"For 24 Vdc Operation" under "Connecting Power to the CommCenter System" on page 16.
GROUND
120/240 Vac
GAIN
10 8 7
1
CNTR
TB2
+ –
24 Vdc
POWER SUPPLY
MODEL 300MB
17 16 1
TB1
CENTRAL AMPLIFIER

Figure 10 Typical central power system

NOT USED WITH THE MODEL PS600
17 16 15 1
TB1
SIGNAL LINES,
SHIELDED TWISTED PAIR
+
OUTPUT
–
Model 300MB-SD CommCenter Series D1
Installation and Maintenance Manual
SIGNAL LINES
SHIELDED
TWISTED PAIR
MODEL 300GC
24 Vdc
AM25CK
MODEL 300MB
TB1-16 SIGNAL COMMON
TB1-17 MICROPHONE OUT
TO ADDITIONAL SPEAKERS,
40 OHMS MAXIMUM LOAD
POWER
LINES
290A7334
290A7517
15