Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 9: Frequently asked questions (FAQs)
2657A-901-01 Rev. B/December 2012
9-7
Figure 122: Typical low-current connections
Metal noise
shield
LINE R
ATING
100-240
VAC
50, 60 Hz
350
VA
MAX.
LINE FUSE
SLOWBLOW
5.0
A, 250 V
NO INTERNA
L OPER
AT
OR SE
RVICEABLE P
AR
TS,
SE
RVICE B
Y QUALIFIED PERSONNE
L ON
LY.
REPLACE FUSE WITH SAME
TYPE
AND R
ATING.
W
ARNING:
INPUT/OUTPUT CURRENT: 120 mA MAX.
RS-232
DIGI
TA
L I/O
LAN
!
IEEE-488
!
!
SENSE
LO
HI
LO
GUARD
SENSE
HI
LO
3030 VDC
MAX.
250 V
MAX.
DIGIT
AL I/O
Test fixture
interlock
switch
connection
HI LO
DIGIT
AL
I/O
!
SENSE
LO
HI
LO
GUARD
SENSE
HI
LO
3030 VDC
MAX.
250 V
MAX.
Model 2657A
DIGITAL I/O
1
14
13
25
4 ***
1
7
4 ***
3
6
7
Guard**
LO*
HI
3
2
2
*
LO connected to
metal noise shield
** Guard
connected
to
metal guard shield
*** Additional connections
for redundant protective
earth (safety ground)
may be required
6
5
5
Ground symbols
Chassis
Protective earth
(safety ground)
DUT
>1 G
Ω
NC
Metal guard
shield
1
+5 VDC
Содержание 2657A
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