Fastrax IT321, Техническое описание

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2007-11-19
Page 22 of 35
IT321_Tech_doc_12
NOTE
Pull ECLK signal to low state e.g. with
10kohm resistor.
4.9.1 GPIO1 Valid fix indicator
GPIO1 is available as a valid fix indicator. Prior navigation the output
stays at high state. During valid fix the output sends 100ms high state
pulses at 1Hz rate. The I/O level is CMOS 1.8V compatible.
4.9.2 TSYNC/GPIO8
Optional input TSYNC input is intended for external time aiding with a
special ROM version used for A-GPS. GPIO8 is available only for
custom purposes with embedded flash version. I/O level is CMOS
1.8V compatible. Pull low with e.g. 10kohm when not used.
4.10 Mechanical dimensions and contact numbering
Module size is 10.4mm (width) x 14.0mm (length) x 2.3mm (height
2.6mm max). General tolerance is
±
0.3mm.
Figure 4 Dimensions