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Model T940 User Manual
Publication No. 980938 Rev. K
Functional Description 4-10
Astronics Test Systems
In this example, DSA and DSB on DRM1 and DRM2 are coupled to a DRS (128
channels), DSA and DSB on DRM3 and DRM4 are coupled to a second DRS
(128 channels), DSA and DSB on DRM5 are linked and running independent of a
DRS (64 channels). DSA and DSB on DRM6 are not linked and running
independent of a DRS (two groups of 32 channels each).
Data Sequencer
PROBE/FLAG
RAM
RECORD RAM
PATTERN
RAM
SEQUENCE
LOGIC
FREQUENCY
SYNTHESIZER
SEQUENCE
CONTROL
CBUS
PHASE
CHANNEL
CONTROL
AUX
&
PROBE
CONTROL
CH DATA
CH EN
CH RH
CH RL
CH OC
AUX DATA
AUX EN
AUX RH
AUX RL1
MPSIG
PATADDR
RECADDR
PRBADDR
PATADDR
RECADDR
FS
500MHz
SIM
WINDOW
FS
FLAGS
PRB DATA
FLAGS
ERROR
FS
CH IN/ERR IN
AUX I/O
CH IN
DB
DR
CONTROL
PCODE
DATA SEQUENCER
IM
IM CONTROL
PRBADDR
LTB
CHT[1:4]
Figure 4-4: Data Sequencer Block Diagram
DRM6
DRM5
DRM4
DRM3
DRM2
DRM1
CH 1-64
CH 65-128
CH 129-192
CH 193-256
CH 257-320
CH 321-384
SEC
SEC
SEC
SEC
TER
SEC
TER
LINKED
COUPLED
PRI
DSB
DSA
DSB
DSA
DSB
DSA
DSB
DSA
DSB
DSA
DSB
DSA