2.
Connect
the
A
CCESSORY
CONTROL
INTERF
A
CE
connector
of
the
4285A
and
the
CONTROL
INPUT
connector
of
the
42851A
using
the
furnished
accessory
control
interface
cable
.
Figure
1-3.
Q
Measurement
System
Conguration
Connecting
4285A,
42841A,
and
42851A
The
42841A
and
the
42851A
use
the
same
accessory
control
interface
,
and
both
of
them
can
be
connected
to
a
4285A.
However
,
the
4285A
can
control
either
the
42841A
or
42851A
depending
on
the
CONFIG
eld
setting
on
the
SY
STEM
CONFIG
page
.
Equipment
Required
The
following
equipment
are
required.
4285A
Precision
LCR
Meter
with
Option
002
42841A
Bias
Current
Source
42842C
Bias
Current
T
est
Fixture
42851A
Precision
Q
A
dapter
16048A
T
est
Leads
10503A
BNC
Coaxial
Cable
(2
ea.)
Interconnecting
Cables
Connect
the
cables
between
the
4285A,
the
42841A,
and
the
42851A
as
shown
in
Figure
1-4
using
the
following
procedure
.
1.
Connect
the
A
CCESSORY
CONTROL
INTERF
A
CE
connector
of
the
4285A
and
the
BIAS
CONTROL
INPUT
A
connector
of
the
42841A
using
the
furnished
accessory
control
interface
cable
.
2.
Connect
the
BIAS
CONTROL
INPUT
B
connector
of
the
42841A
and
the
CONTROL
INPUT
connector
of
the
42851A
using
the
furnished
accessory
control
interface
cable
.
Before
Y
ou
Begin
1-5
