Input; Output; Table - Orban 412A Operating Manual

Preferred Wiring:
We
recommend
wiring
with two-conductor
shielded cable (such
as
Belden
8451 or equivalent) because
signal current flows
through
the
two
conductors
only.
The
shield
does not carry
signal,
is
used only for shielding,
and
is
ordinarily
connected
to
ground
at
one end
only.
The
following
table
and diagram
are applicable
to
a great majority
of installations.
If
you
wish
to
use single-conductor shielded
cable,
see
the section
immediately
below.
0»T
~l
fBAtANCCO)
I
OUT
<
I
(UN 8
A
1
.ANCED)|
Him
Mm
I
ORBAN
UM\T
—
i
1
»
\\
A»
J
1
1
3
7 ?
o
1
1
DRIVEN EQUIPMENT
^
IF ORftAM UMVt
(S
COUIPPED WITH OPtlONAL OUTPUT TPANSTORMCR,
TWIN
INSTALL THIS
JUMPSR.
Fig. B-4:
GROUNDING
TABLE
1:
GENERAL
INPUT/OUTPUT CONNECTION RULES
INPUT
1)
Always
use
(+)
and
(-)
as the
two
input terminals
to
the 414A.
2)
When
the
414A
is
driven
from
an
unbalanced
source,
connect
the
shield to
circuit
ground
at the source and
to chassis ground
at the 414A. Connect
the
(-)
input
to chassis
ground
as well.
3)
When
the
414A
is
driven
from
a balanced
source,
connect
shield at the
source end
to chassis ground.
Do
not connect
shield at
414A
end.
OUTPUT
1)
At
the
414A
output, connect the shield
at the
414A end
to chassis
ground
(whether
driving balanced or unbalanced
loads).
Do
not connect the
shield
at the other end.
2)
When
driving
an unbalanced
load,
connect
the
circuit
ground
of the
driven
equipment
to
the 414A's
(-)
output.
Connect
the hot side of the driven
equipment's
input to the
414A's
(+)
output.
3)
When
driving a balanced
load,
jumper
the
circuit
ground
to
the
chassis
ground on
the
414A
(on
rear
panel).
When
driving an unbalanced
load,
do
not
use
this
jumper.
R