5
Installation Guide
AT-HDR-SW-52
Audio
The included 5-pin captive screw block can be wired to support balanced audio using XLR
connectors, or unbalanced audio using RCA connectors.
*The GND signal, from the 5-pin captive screw connector on the
AT-HDR-SW-52, should be tied to pin 1 on both XLR connectors.
*The GND signal, from the captive screw connector on the AT-
HDR-SW-52, should be tied to L- and R- on the captive screw
connector.
GND
+
+
GND
1
2
2
3
3
GND
Balanced Audio (XLR)
Unbalanced Audio (RCA)
Channel
Signal (AT-HDR-SW-52) Pin (RCA)
R
to GND*
--
R
+
+
--
GND
GND
L
+
+
L
to GND*
--
Channel
Signal (AT-HDR-SW-52) Pin (XLR)
R
-
3
R
+
2
--
GND*
1
L
+
2
L
-
3
