821020: AMP1A Series User Guide
© 2010 Wohler Technologies, Inc. All rights reserved.
14
AMP1A Series User Guide
Rear Panel Connectors
AMP1A-30 and AMP1-106 Rear Panel Connectors
Figure 1–8
AMP1A-30 and AMP1-106 Rear Panel
Connector Descriptions
Operation/Calibration Mode Select
(Six-Position DIP Switch): This
switch sets the Line Level Calibration, Reference Level, and PPM/VU
Display Mode. See
below and
for
details.
YEAR
50/60 Hz 1.0 A
100-240 VAC
SERIAL NO.
MONTH
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Tel
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+1-510-870-0811
+1-510-870-0810
253840
XLR LOOP-THRU
CH A(L)
CH B(R)
6
5
4
3
1 2
0
PPM/PPM
5
4
3
2
+6
+4
PPM
VU/PPM
+8
METER
CALIB
DISPLAY
MODE
VU/VU
CALIBRATE
OPERATE
CH A(L)
3
2
1
3
1
2
Operation/Calibration
Mode Select
Analog Audio In
(Left & Right)
Power
Analog Audio Loop-Through
(Left & Right
Table 1–3
Operation/Calibration Mode Select Switch Settings
Switch
Numbers
a
Function
Description
1
Operation/
Calibration
Determines whether the monitor is in a normal
operational mode or a calibration cycle.
2 and 3
Reference Level
Adjusts the level of the input signal and the resultant level
displayed on the LED bar graphs. Factory setting is +4 dB.
4 and 5
Display Mode
Determines how peak levels are displayed for the
associated meters on the front panel. The four
settings include:
•
VU Only,
•
VU-PPM Floating Segment,
•
PPM Only, and
•
PPM-PPM Floating Segment.
The VU Only selection has a VU floating segment
when a peak hold value is selected using the internal
10-position DIP switch module. The factory default
setting is VU-PPM floating segment.
6
Not Used
a
The switch numbers in the DIP switch module are numbered from left to right.
