•
Input 8: High Temperature Sensor (low = below Temp Threshold, high = above
Temp threshold. Temp Threshold = 300)
Analog to Digital Inputs
•
A/D 0: External Power Supply Monitor
•
A/D 1: Generic External Analog to Digital Input
•
A/D 2: GPS Antenna Monitor
•
A/D 3: uP Temperature
•
A/D 4: uP Voltage
•
A/D 5: Battery Voltage
•
A/D 6: Temperature Sensor
•
A/D 7: Vcc Sys
Outputs:
•
Output 0: Standard Open Collector Relay Output
•
Output 1: Standard Open Collector Relay Output
•
Output 2: Standard Open Collector Relay Output
•
Output 3: Not Available
•
Output 4: Power Supply Switch (cleared = switch to external power, set = switch
to internal power)
•
Output 5: Enable/Disable Battery charging (cleared = enable battery charging, set
= disable battery charging)
3.5Motion Sensor Input
The TTU-2830™supports an internal motion sensor as one of its discreet inputs. In this
case, the TTU detects motion and will determine if the device is moving for at least 30
consecutive seconds. If it is moving the device will track at a 5 minute interval for about
350 messages.
3.5.1 Power State Input
The TTU-2830™can detect if it’s using external power or if it’s using its internal back-up
battering. If the TTU-2830™is using external power, this input will be in the Low state.
If they have switched to the internal battery, then the input will register in the High state.
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