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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
The SIDE CHAIN connectors on the SQ•2 are special
1/4" TRS insert cables that use the tip to send the signal
outside the box, and the ring to return the signal to
the box. The sleeve is the common ground (earth) for
both signals. These are both unbalanced signals.
Note: This insert cable is also used with a mixer’s
insert jack.
“tip”
This plug connects to the
SQ•2’s SIDE CHAIN 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
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 (–)