Connecting Unbalanced Rca To Balanced Mini Phoenix; Making An Ef Bus Terminator - Polycom Vortex EF2280 Reference Manual
Polycom ef2280 audio: reference manual
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Also See for Vortex EF2280:
- Programming manual (105 pages) ,
- Reference manual (76 pages) ,
- Applications (20 pages)
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C
U
ONNECTING
NBALANCED
RCA Male
Tip
Ring
Figure 31. Cable construction for connecting unbalanced RCA to balanced mini Phoenix (3 conductor terminal
block).
M
EF B
AKING AN
Figure 32. The EF2280 terminator
Instructions
V
EF2280 Reference Manual
ORTEX
RCA
Red
Black
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.
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.
T
US
ERMINATOR
1 2 3 4 5 6 7 8
To make a EF2280 terminator, use an RJ45 connector. Connect pin 3 to pin 6 with an
110 Ohm resistor.
B
M
TO
ALANCED
110
50
C
ONNECTOR
P
INI
HOENIX
Mini (3.5 mm) Phoenix
+
Red
Black
-
Shield
Technical Support: 800.932.2774
P
INOUTS
1
2
3
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