
33 |
P a g e
RELAY CIRCUIT
Current Specifications
200mA (typical).
Maximum Continuous
Voltage on Pin
33V
Protection
Transients will be clamped
RS232 PORTS
Maximum Speed
57600 Baud (higher rates possible with hardware flow control)
Protection (Transient)
ISO 7637-2 (24 VDC supply)
Protection (DC)
-12V , +12V
I
2
C BUS
Normal Operating Speed
~38Kbits per second
Maximum Supply
Current (CLK)
<20mA
Protection (Transient)
ISO 7637-2 (24 VDC supply)
Protection (DC)
0V to +12V
REAL TIME CLOCK
Time Loss
<10 Minutes per year (typical)/ <5 seconds when a GPS is used (auto synchronization)*
*temperature change affects the accuracy of the RTC crystal; it’s most accurate at
+25°C.
Battery Backup Life
>5 Years (typical at -30° to +70°C)
GPS
Channels
50
Update Rate
4Hz
Horizontal Position
Accuracy
<2.5m
Accuracy DGPS/SBAS
<2.0m