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CONNECTOR PINOUTS
VORTEX EF2280 Reference Manual 50 Technical Support: 800.932.2774
C
ONNECTING
U
NBALANCED
RCA
TO
B
ALANCED
M
INI
P
HOENIX
1. Connect RCA Tip to Phoenix pin 1.
2. Connect RCA Ring to Phoenix pin 2.
3. Connect Phoenix pin 3 to Shield, and leave Shield floating on RCA end.
M
AKING
AN
EF B
US
T
ERMINATOR
Instructions To make a EF2280 terminator, use an RJ45 connector. Connect pin 3 to pin 6 with an
110 Ohm resistor.
Figure 31. Cable construction for connecting unbalanced RCA to balanced mini Phoenix (3 conductor terminal
block).
Red
Black
Red
Black
Shield
Tip
Ring
RCA Male
Mini (3.5 mm) Phoenix
2
1
3
+
-
Caution! Do NOT connect the shield at both ends.
Caution! On the EF2280, Phoenix pin 3 is connected to
chassis ground. Under no circumstances should
Phoenix pin 3 be connected to pin 1 or to pin 2.
Doing so will add noise to the audio signal.
Figure 32. The EF2280 terminator
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