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230
D
data
on local bus
148
output, circuit description 216
port, selecting 92
data formatting
circuit description
215
specifying 90
data frame 44
data transfer bus 209
dc coupling, selecting 141
dc offset correction 134
decimation counters, synchronizing 151
decimation filter
and triggering
25
changes 39
circuit description 215
described 30
selecting 120
DEVICE_NPRESENT 13
digital filter
See decimation filter
DIR
44
drivers
installing Windows
12
upgrading 12
DTB arbitration bus 209
E
E9821, using with 42
ending an instrument session 86
EOE 44
epoch 44
error messages
listed
199
reading 102
reading firmware 103
example
external sample clock
41
trigger delay 25
trigger phase 25
example programs
C
16
using 16
Visual Basic 16
Windows 15
external
clock frequency
76
reference clock 34
sample clock 40, 104
sample synchronization 40
trigger, described 217
trigger, selecting 185
F
FEOF 44
fiber frame 44
fiber modes 45
fiber optic
cables
6
cleaning connectors 6
fiber overflow 44
FIFO OV 44
filter bandwidth
See Also decimation filter
setting
120
filter decimation
See decimation filter
filtering
overview
30
See Also anti-alias filter
See Also decimation filter
span, See zoom measurements
firmware
upgrading
12
firmware revision, determining 169
floating input, selecting 143
flow control 44
formatting data
Seedataformatting
frequency
center, changing
39
center, overview 30
center, setting 128
external sample clock 76
synchronizing changes 129
front panel
clock output
173
connectors 208
hardware 208
signal distribution 33
software 15
G
generate fiber mode 48
generating
data on local bus
148
interrupts 146
GO/STOP 44
grounding 209
H
hardware interface 13
hardware reset 168
I
id, module 132, 158
IDLE 44
idle state
described
23
forcing 86, 151
initializing the I/O driver 132