Specifications

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ADMS 44.22 Installation and Operation Manual
INSTALLATION
Off = Program Present
AES Error AES Error Indicator [Red]
Indicates when an AES cyclical redundancy check (CRC), parity, eye-pattern, or
biphase error condition has been detected on any of the AES digital input channels
that are connected to Output 1. Errors that are detected on AES inputs that are either
disconnected or connected only to Output 2 are ignored. Once an AES Error is
detected the AES Error LED remains lit for 10s and then goes off, even after the
input has been disconnected from Output 1. The AES Error LED can also be
cleared with the AESR command.
On = AES Error(s) Detected
Off = No AES Errors Detected
Meter-Mon Headphone/Powered Monitor Source Indicator [Red]
Located immediately to the right of the OP2 button, this LED indicates which out-
put is being monitored by the PPM Meters, the headphone output, and the powered
monitor output.
On = Monitor Output 2
Off = Monitor Output 1
PPM Meters Peak Program Meters
The PPM meters indicate L and R output levels for either Output 1 or Output 2,
depending on the selected monitor source selection (see above). The PPM Meters
use PPM ballistics, which have an extremely fast response to signal peaks, and a
slow decay rate. The meters have both an analog scale on the left, and a digital scale
on the right so that signal levels in both domains are always visible. The PPM
meters are precisely calibrated so that the LED segment corresponding to the scale
mark turns on at exactly the indicated level.
3.3 Headphone Level
The headphone level potentiometer (hdph lvl) controls the output level of the stereo
1/4” TRS headphone jack on the front panel.
The output source for headphone jack is indicated by the Meter-Mon Sel LED located to
the right of the OP 2 button. Holding the OP 2 button for 2.5 seconds switches the monitor
source between Output 1 and Output 2.
3.4 Powered Monitor Level
The powered monitor potentiometer (PM lvl) controls the output level for the stereo
powered monitor outputs on the rear panel. The output source for powered monitor outputs
ADMS 44.22 Headphone & Powered Monitor Controls