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14
Appendix B: Connections
1/4" TS Phone Plugs and Jacks
“TS” stands for Tip-Sleeve, the two connection
points available on a mono 1/4" phone jack or plug.
They are used for unbalanced signals.
SLEEVE
TIP
TIP
SLEEVE
TIP
SLEEVE
1/4" TS Unbalanced Wiring:
Sleeve = Shield
Tip = Hot (+)
1/4" TRS Insert Plugs and Jacks
When patching the T•231 into a channel’s
insert jack, you may need to use a special 1/4" TRS
connector that uses the tip to send the signal to the
T•231, and the ring to return the signal to the channel.
The sleeve is the common ground (earth) for both
signals. These are both unbalanced signals.
“tip”
This plug connects to the
Channel Insert jack
“ring”
tip
ring
sleeve
SEND to processor
RETURN from processor
(TRS plug)
1/4" TRS Insert Wiring:
Sleeve = Ground
Tip = Send
Ring = Return
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.
TI
P
SLEEVE
TIPSLEEVE
RCA Unbalanced Wiring:
Sleeve = Shield
Tip = Hot
XLR Connectors
The inputs and outputs use 3-pin male and female
XLR connectors. They are wired as follows, according
to standards specifi ed by the AES (Audio Engineering
Society).
2
3
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
2
1
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
connection points available on a stereo 1/4" or
balanced phone jack or plug. TRS jacks and plugs are
used for balanced signals.
SLEEVE
TIP
SLEEVE
TIP
RING
RING
TIP
SLEEVERING
1/4" TRS Balanced Wiring:
Sleeve = Shield
Tip = Hot (+)
Ring = Cold (–)