14
Appendix B: Connections
XLR Connectors
Channels 1 and 2 use 3-pin female XLR connectors
on the MIC inputs. They are wired as follows,
according to standards specifi ed by the AES (Audio
Engineering Society).
XLR Balanced Wiring:
XLR Balanced Wiring:
Pin 1 = Shield
Pin 2 = Hot (+)
Pin 3 = Cold (–)
1/4" TRS Phone Plugs and Jacks
“TRS” stands for Tip-Ring-Sleeve, the three
connections available on a stereo 1/4" or balanced
phone jack or plug. TRS jacks and plugs are used for
balanced signals and stereo headphones:
Balanced Mono
1/4" TRS Balanced Mono wiring:
1/4" TRS Balanced Mono wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)
Stereo Headphones
1/4" TRS Stereo Unbalanced Wiring:
1/4" TRS Stereo Unbalanced Wiring:
Sleeve = Shield
Tip = Left
Ring = Right
1/4" TS Phone Plugs and Jacks
“TS” stands for Tip-Sleeve, the two connections
available on a mono 1/4" phone jack or plug. They
are used for unbalanced signals.
1/4" TS Unbalanced Wiring:
1/4" TS Unbalanced Wiring:
Sleeve = Shield
Tip = Hot (+)
RCA Plugs and Jacks
RCA-type plugs (also known as phono plugs)
and jacks are often used in home stereo and video
equipment and in many other applications. They are
unbalanced and electrically equivalent to a 1/4" TS
phone plug.
RCA Unbalanced Wiring:
RCA Unbalanced Wiring:
Sleeve = Shield
Tip = Hot
2
1
SHIELD
COLD
HOT
2
3
2
1
SLEEVE
TIP
TIP
SLEEVE
SLEEVE
SLEEVE
TIP
SLEEVE
TIP
RING
RING
SLEEVE
TIP
SLEEVE
TIP
SLEEVE
SLEEVE
TIP
SLEEVE
TIP
RING
RING
SLEEVE
RING
