
Page 44
MICROPHONE PREAMPLIFIER
Page 45
Instruction Manual
APPENDIX E
APPENDIX E: HELPFUL WIRING TABLE
Also see next page...
Cross-
Coupled
Balanced
(Aphex Servo
Balanced)
POSITIVE (HIGH)
TABLE 2 - - TYPES OF ACTIVE BALANCED INPUT/OUTPUT CIRCUITS & INTERFACE WIRING
OUTPUT
TYPE
WIRING DIAGRAM
(Interface from OUTPUT to INPUT)
INPUT
TYPE
Resulting Interface
METHOD / LEVEL
Unbalanced Unbalanced
Unbalanced
Unity
Gain
2
Unbalanced Balanced
Pseudo
Balanced
(see Note 4 for
Unbalanced
wiring)
Unity
Gain
2
Voltage
Balanced
Unbalanced Unbalanced
6dB
Loss
2
Voltage
Balanced
Balanced Balanced
Unity
Gain
2
Impedance
Balanced
Unbalanced Unbalanced
Unity
Gain
2
Impedance
Balanced
Balanced Balanced
Unity
Gain
2
Cross-
Coupled
Balanced
(Aphex Servo
Balanced)
Unbalanced Unbalanced
Unity
Gain
2
Balanced Balanced
Unity
Gain
2
Wire: single conductor with a shield (coax style)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
Wire: two conductor with a shield (twisted pair)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
NEGATIVE (LOW)
SHIELD (GND)
POSITIVE (HIGH)
SHIELD (GND)
No Connection (see Note 4)
No Connection (see Note 5)
NC Optional (see Note 6)
NC Optional (see Note 6)
NC Optional (see Note 6)
NC Optional (see Note 6)
NC Optional (see Note 6)
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2
3
4
5
6
7
8
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