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New Focus 3501 - Back Panel; Out1; Out2

New Focus 3501
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15
OUT 1 OUT 2
V ext
TTL
TTL
-10V=100%
IEEE-488 MOTOR
WARNING: High voltage
inside. Refer to qualified
technician for service.
VOLTS AC SLO-BLO FUSE
100-120
220-240
0.4 AMP
0.2 AMP
MADE IN THE U.S.A.
120 Vac
Fig. 3
Back panel of the chopper controller.
OUT1
The function of the OUT1 output depends on the instrument’s operating
mode. In H/S mode, the instrument provides a TTL level pulse at fre-
quency [H/S]·F
sync
. In +/- mode the frequency at OUT1 is
F
outer
- F
inner
, and in NORMAL mode the frequency is 5·F
outer
.
OUT2
The function of the OUT2 output depends on the instrument’s operating
mode. In H/S mode, the instrument provides the user with a TTL level
pulse at frequency [H/(7·S)]·F
sync
. In +/- mode the frequency at OUT2
is F
outer
+F
inner
, and in NORMAL mode the frequency is F
inner
.
Back Panel
Operation
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