Signametrics SMX4030, Operator'S Manual, Page: 12 / 61

3.3 Installing the Scanner Module
Warning
To avoid shock hazard, install the Scanner only into a personal computer that has its power line connector
connected to an AC receptacle with an Earth Safety ground.
After installation, check to see that no loose wires or ribbon cables infringe upon any of the internal circuits
of the Scanner, as this may apply measurement voltages to your computer, causing personal injury and/or
damage to your computer!
Caution: Only install the Scanner module with the power turned OFF to the PXI chassis !
Use extreme care when plugging the Scanner module(s) into a PXI slot.
3.4 Scanner Connector Pin-out
Before using the Scanner, please take a few moments and review this section to understand where the multiplexed
and common signals are located in the DB-78 position male connector are located.
Under no circumstances
should voltage and current limits exceed the specified values, as personal injury or damage to the instrument,
your computer or application may result.
Figure 3-1. The Scanner’s DB-78 connector, facing the bracket.
Pin
Number
Label Description Pin
Number Label Description
1 Ch2Hi Channel 2 High 33 CHi C-bus/Ch34 High
2 Ch4Hi Channel 4 High 34 Ch26Hi Channel 26 High
3 Ch5Hi Channel 5 High 35 Ch28Hi Channel 28 High
4 Ch7Hi Channel 7 High 36 Ch30Hi Channel 30 High
5 Ch8Lo Channel 8 Low 37 Ch32Hi Channel 32 High
6 Ch10Hi Channel 10 High 38 NC No Connection
7 Ch12Hi Channel 12 High 39 Trig_Out Trigger Output
8 Ch13Lo Channel 13 Low 40 Ch1Hi Channel 1 High
9 Ch15Lo Channel 15 Low 41 Ch3Hi Channel 3 High
10 Ch17Lo Channel 17 Low 42 ALo A-bus Low
11 Ch19Lo Channel 19 Low 43 Ch6Lo Channel 6 Low
12 Ch21Lo Channel 21 Low 44 Ch8Hi Channel 8 High
13 Ch23Lo Channel 23 Low 45 Ch9Hi Channel 9 High
14 CLo C-bus/Ch34 Low 46 Ch11Hi Channel 11 High
15 Ch26Lo Channel 26 Low 47 BLo B-bus/Ch33 Low
16 Ch28Lo Channel 28 Low 48 Ch14Lo Channel 14 Low
17 Ch30Lo Channel 30 Low 49 Ch16Lo Channel 16 Low
18 Ch32Lo Channel 32 Low 50 Ch18Lo Channel 18 Low
19 Trig_IN Trigger Input 51 Ch20Lo Channel 20 Low
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