CalAmp TTU-2830, Руководство по установке оборудования, Страница: 6 / 22

9 SER_OUT Serial Output Green\Black Output
10 SER_IN Serial Input Blue\Black Input
TTU-2830™Power and I/O leads
3.3 GPS Receiver
The TTU-2830™’s GPS receiver has the following specifications:
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50 channel GPS receiver
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Accuracy: 2.5 meter CEP (with SA off)
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-162dBm Tracking Sensitivity
3.4 I/O Descriptions
The TTU-2830™provides the following I/O:
Digital Inputs
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Input 0: Ignition Sense (Always biased low)
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Input 1: Generic Digital Input (high or low bias per S-158)
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Input 2: Generic Digital Input (high or low bias per S-158)
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Input 3: Not Available
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Input 4: Not Available
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Input 5: Motion Sensor (low = no motion, high = motion)
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Input 6: Power Switch State (low = external power, high = internal battery)
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Input 7: Battery Voltage Critical Sensor ( low = VBatt ok, high = VBatt low.
3500mV threshold)