GAI-Tronics 751-905 Smart SERIES Manual - Página 11
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751-905 SmartSeries
Speaker Amplifier
Fault Message
Polled device
Polled End-of-line
device
Specifications
Electrical
Supply voltage .......................................................................... 90–140 V ac (120 V ac nominal), 50/60 Hz
Power consumed @ nominal ac ........... Zero/maximum signal (12 watts): 15 VA, 9 watts/59 VA, 32 watts
Speaker Amplifier
Output ............................................................................... 12 watts minimum, with nominal supply voltage
Frequency response .......................................................................... 350–6,500 Hz, +0/−3 dB, ref. to 1 kHz
Distortion ......................................................................................... 1% maximum THD @ 1 kHz, 12 watts
SmartVolume™
Monitor range (low gain) ...................................................................................................... 62–100 dB SPL
Offset (above ambient) user level adjustment ................................................................................... 0–48 dB
Minimum user level adjustment .................................................................................... Off; 85–125 dB SPL
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Cause and Effect
Cause—This message is output by the MCU
when it loses communication with the station.
This may occur if there is a fault in the page
line, if the station is powered-down, or if there
is some fatal malfunction within the station.
Effect—The MCU continues to attempt
communication with the station. When
communication is resumed, a restore message is
sent to the MCU.
Cause—This message is the same as the
"Polled device" fault, except that the affected
station has been defined as an end-of-line
station in the MCU configuration.
Effect—When this fault occurs, the red EOL
FLT LED on the PPI bezel lights. When
communication is resumed, the LED
extinguishes and a restore message is sent to the
MCU.
Pub. 42004-686L2D
10 of 11
P
AGE
Possible Solution
Verify that the page line
is connected and intact.
Verify that the station is
installed correctly.
Replace the FSK/P
PCBA.
Verify that the page line
is connected and intact.
Verify that the station is
installed correctly.
Replace the station
assembly.