
4349B
Setting
Up
the
Handler
Interface
Board
This
section
describes
how
to
connect
pull-up
resistors
to
enable
the
output
signals
,
and
how
to
set
the
dip
switch
to
select
voltage
levels
for
the
input
signals
.
These
procedures
must
be
done
before
using
the
handler
interface
.
Caution
SUSCEPTIBLE
TO
D
AMA
GE
FROM
ESD
.
P
erform
the
following
procedures
only
at
a
static-safe
workstation
and
wear
a
grounding
strap
.
Caution
Be
careful
not
to
short
the
circuit
when
performing
the
following
procedures
.
F
or
example:
Solder
cleanly
and
carefully
.
Guard
against
hair
or
dust
getting
on
the
circuit.
Do
not
damage
the
boards
,
wires
,
or
parts
on
the
board.
T
ools
and
F
asteners
The
4349B
mechanical
components
are
secured
using
metric
threaded
fasteners
.
Many
fasteners
in
the
4349B
may
appear
to
be
Phillips
type
,
but
they
are
P
ozidrive
type
fasteners
.
T
o
avoid
damaging
them,
use
only
P
ozidrive
screwdrivers
to
remove
or
tighten
pozidrive
type
fasteners
.
Procedure
1.
Disconnect
the
power
cable
from
the
4349B
and
allow
enough
time
(10
minutes)
for
the
internal
capacitors
to
discharge
.
W
arning
Dangerous
energy
and
voltage
levels
exist
within
the
4349B
when
it
is
in
operation
and
just
after
it
is
powered
down.
Allow
10
minutes
for
the
4349B
's
internal
capacitors
to
discharge
before
starting
to
work
on
it.
2.
Remove
the
two
screws
which
fasten
the
cover
to
the
chassis
rear
panel.
3.
Slide
the
cover
toward
the
rear
while
holding
the
front
panel
bezel.
Handler
Interface
Installation
B-5
Summary of Contents for 4349B
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Page 42: ...4349B Figure 1 1 Power Cable Supplied 1 10 Getting Started ...
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Page 176: ...4349B Figure 8 9 10 Additional Error Measurement Time 400 msec 8 14 General Information ...
Page 212: ...4349B Figure B 3 Handler Interface Input Signal Diagram B 4 Handler Interface Installation ...
Page 216: ...4349B Figure B 4 A1 Main Board B 8 Handler Interface Installation ...
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