32-4 9440300990
Analog Expansion Module DECS-250
Figure 32-1. AEM-2020 Overall Dimensions
Connections
Analog Expansion Module connections are dependent on the application. Incorrect wiring may result in
damage to the module.
Operating power from the battery must be of the correct polarity.
Although reverse polarity will not cause damage, the AEM-2020 will
not operate.
Be sure that the AEM-2020 is hard-wired to earth ground with no
smaller than 12 AWG copper wire attached to the chassis ground
terminal on the module.
Terminations
The terminal interface consists of both plug-in connectors and a permanently mounted connector with
screw-down compression terminals.
AEM-2020 connections are made with one 5-position connector, two 12-position connectors, two 16-
position connectors, and two 2-position thermocouple connectors. The 16, 5, and 2-position connectors
plug into headers on the AEM-2020. The connectors and headers have dovetailed edges that ensure
proper connector orientation. Also, the connectors and headers are uniquely keyed to ensure that the
connectors mate only with the correct headers. The 12-position connector is not a plug-in connector and
is mounted permanently to the board.
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