2-4
Card Connections and Installation
Card configuration
shows a simplified schematic diagram of the Model 2000-SCAN-20. The scanner
card has 20 input channels and two outputs. Channels 1 through 20 are all switched by relays.
In 2-pole mode, the OUT A HI and LO connections are for all 20 channels. In 4-pole mode,
the OUT A HI and LO connections are for channels 1 through 10 and the OUT B HI and LO
connections are for channels 11 through 20.
4-pole paired channels are as follows:
•
Channels 1 and 11
•
Channels 2 and 12
•
Channels 3 and 13
•
Channels 4 and 14
•
Channels 5 and 15
•
Channels 6 and 16
•
Channels 7 and 17
•
Channels 8 and 18
•
Channels 9 and 19
•
Channels 10 and 20
Figure 2-1
Model 2000-SCAN-20 simplified schematic
HI
LO
Channel 1
HI
LO
Channel 2-9
Channel 10
HI
LO
Channel 11
HI
LO
Channel 12-19
Channel 20
HI
LO
OUT B
(To DMM sense jacks)
HI
LO
2-Pole
4-Pole
User-installed
current shunt
User-installed
current shunt
OUT A
(To DMM input jacks)
Содержание 2000-SCAN-20
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