Signal Line Types And Preconditions For Passive Splitting - Lehle P-Split II Operating Instructions Manual

Signal line types and preconditions for passive splitting

Unbalanced signal lines predominate when
instruments such as guitars, basses and keyboards
are used. These signal lines have two conducting
cores. The signal itself is present on the signal
conductor and is connected to the tip of the jack
plug. The second core, which is connected to the
sleeve of the jack plug, screens the signal conduc-
tor and constitutes the signal ground.
Tip
Signal in Phase
Sleeve
Ground
Balanced signal lines are used to cross larger
distances without interference. They are generally
fitted with XLR connectors or TRS (Tip Ring Sleeve)
jack plugs. Here, three cores are required: there
are two signal conductors. In a balanced signal
line, the signal is present in phase at the tip, as in
the case of an unbalanced signal line (XLR Pin 2).
The second signal conductor carries the same sig-
nal, but with the opposite polarity or mirror-image
4
phase (Ring, XLR Pin 3). The third conductor is the
screening, and again constitutes the signal ground
(Sleeve, XLR Pin 1).
Ground
Signal in mirrored Phase
Signal in Phase
Preconditions for passive splitting:
The Lehle P-Split II is a passive splitter which
can be used to split high-impedance signals to
high-impedance inputs. There are certain pre-
conditions which must be met to ensure that this
is accomplished without problems occurring and
with no loss of sound.
Jack XLR
Sleeve Pin 1
Ring Pin 3
Tip pin 2