Listen AudioConnect Series, Руководство пользователя

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Operation
AudioConnect
TM
Manual
12
Balanced vs Single Ended Connections
AudioConnect accepts both Balanced and Single Ended (Unbalanced) connections.
BNC and RCA connections are both typically single ended.
As noted under
Balanced vs Single Ended Vp Values on page 3
, when a
Single Ended Output
connection is used, the Vp value for that channel of the Hardware Editor should be half the value used for a
Balanced connection. The Input Vp values are not affected by single ended connections
Some instances may arise that require a single ended connection using a BNC or RCA connector. The
diagram in
Figure 4-6
shows preferred wiring methods using these connectors.
Example 1
The common RCA to 1/4” Tip/Sleeve cable requires the use of Single Ended Vp values in the SoundCheck
Hardware Editor.
Example 2
This option allows you to still use Balanced Vp values in the Hardware Editor.
Example 3
While this method uses a 1/4” TRS connector, when the Ring is connected to the Sleeve it makes the
connection to AudioConnect Single Ended. This method requires the use of Single Ended Vp values in the
SoundCheck Hardware Editor.
Example 1: Common RCA to Tip/Sleeve Cable
Center Conductor to Tip
Center Conductor to Tip
Example 2: Modified RCA to Tip Ring Sleeve Cable
Example 3: Modified RCA to TRS Cable – Single Ended
+
Center Conductor to Tip
Shield to Sleeve
Sleeve Ring Tip
GND – +
Shield to Ring -
Sleeve is floating (NC)
+
Sleeve Ring Tip
GND – +
Shield to Sleeve -
Ring connected to Sleeve
+
This also applies to use with RCA/BNC adapters or
BNC custom cabling.
Sleeve Tip
GND +
Figure 4-7: Balanced vs Single Ended Wiring