TEHCM Interface Board Manual - Community Spice
TEHCM Interface Board Manual - Community Spice
TEHCM Interface Board Manual - Community Spice
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<strong>TEHCM</strong> INTERFACE BOARD MANUALCHAPTER 2OverviewThe BTIB is used to interface the <strong>TEHCM</strong> to a test computer in a teststation environment. Each BTIB interfaces one <strong>TEHCM</strong>; when morethan one <strong>TEHCM</strong> is present in the test station, multiple BTIBs can bedaisy-chained in groups of one, two, or three. The total number ofBTIBs used at one station is limited only by the maximum current ofthe National Instruments PCI-6514 DIO <strong>Board</strong>, which can support over200 BTIBs at one test station.<strong>TEHCM</strong> <strong>Interface</strong> <strong>Board</strong>The BTIB contains the following connectors, jumpers, and LEDs:• P3—CAN interface to the test computer.• P5—The PRNDL signals that interface with the BTIB.• P6, P8, P10—<strong>Interface</strong> signals between the BTIB and the <strong>TEHCM</strong>.• P7—Connector used by all three CAN ports.• P9—Connector that connects the 12 VDC and V bat power supplies.The BTIB monitors the V bat current through this connector.November 13, 2008 Overview / 3
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