SAFEPATH Manual
Sheet 66 of 78
Rev. C April 1999
Supervised Audio System Common Control Module (SADC)
The supervised audio system common control module (SADC) provides all of the control capabilities to the SAFEPATH panel. The
controller module monitors the digital voice module (DX-100 or DX-200), the battery charger module (SABC), and the amplifier
modules (SAA and SACM-4) for proper operation. The microphone is monitored for connection.
The channel playing contacts from the digital voice module (DX-100 or DX-200) are monitored to determine their status, active or
inactive. If the channel playing contact is inactive, the control module routes a supervision tone to each of the amplifier circuit
modules and monitors the amplifier for functionality. If the channel playing contact is active, the control module routes the audio
from that channel’s line output from the digital voice module to the respective amplifier circuit module. Wiring used to monitor the
channel playing contacts and to route the line outputs from the digital voice module is supervised for open and short circuit
conditions.
The battery charger module is monitored for three conditions: low AC input power, battery wiring trouble, and battery voltage low.
The wiring between the controller module and the battery charger is supervised for open and short circuit conditions.
The amplifier modules are supervised for two failure conditions: field wiring trouble conditions and amplifier audio output trouble
conditions. The controller module only supervises the audio output during standby conditions. When either a message is playing
from the digital voice module or a live announcement is being made from the microphone, the field wiring and audio output are not
supervised.
If at any time a trouble condition is detected, the controller module will energize the internal and external trouble audibles, transfer
the Form C trouble contact to the trouble position, turn off the “NORMAL” indicator, and turn on the “TROUBLE” indicator.
There is one fuse on the printed circuit board, F2. F2 is the fuse for the external trouble audible. See Figure 33 for fuse location.
Fuse Rating
F2 0.5
Nominal Specifications:
Input
Voltage
Range
20
to
28VDC
Supply Current (Idle) @ 24VDC 75mA
Supply Current (Full Load) @ 24VDC 130mA
Operating
Temperature
Range 0
to 49 Degrees C (32-120 Degrees F)
Humidity
Range 0
to
85%,
Non-condensing
Содержание SAFEPATH SAPE-1AB
Страница 10: ...SAFEPATH Manual Sheet 11 of 78 Rev C April 1999 Figure 1 Basic Capabilities of the SAFEPATH Panel...
Страница 19: ...SAFEPATH Manual Sheet 20 of 78 Rev C April 1999 Figure 3 Operator s Console...
Страница 24: ...SAFEPATH Manual Sheet 25 of 78 Rev C April 1999 Figure 5 DX 100 Module Illustration...
Страница 25: ...SAFEPATH Manual Sheet 26 of 78 Rev C April 1999 Figure 6 DX 200 Module Illustration...
Страница 28: ...SAFEPATH Manual Sheet 29 of 78 Rev C April 1999 Figure 7 SAFEPATH Panel Mounting...
Страница 32: ...SAFEPATH Manual Sheet 33 of 78 Rev C April 1999 Figure 8 Typical System Block Diagram...
Страница 62: ...SAFEPATH Manual Sheet 63 of 78 Rev C April 1999 Figure 30 Module Layout of the SAFEPATH Panel...
Страница 63: ...SAFEPATH Manual Sheet 64 of 78 Rev C April 1999 Figure 31 SAFEPATH Panel Block Diagram...
Страница 66: ...SAFEPATH Manual Sheet 67 of 78 Rev C April 1999 Figure 33 Supervised Audio System Common Control Module...
Страница 70: ...SAFEPATH Manual Sheet 71 of 78 Rev C April 1999 Figure 35 Self Amplified Speaker Control Signal Circuit Module...
