6.3 Communication Specifications
Interfaces
Ethernet
RS232/RS422
CAN
1PPS
Speed
100 Mbit Ethernet
4800 to 4 M baud serial
Protocols
Advanced Navigation Packet Protocol, NMEA or
CANopen
Peripheral Interface
2 x GPIO
1 x 1PPS Output
1 x Auxiliary RS232
1 x Alarm Output
GPIO Operating Voltage
Levels
5 V
3.3 V
RS232
GPIO Functions
1PPS input/output
Odometer input
DVL/USBL input
Air Data input
Zero velocity input
NMEA input/output
Novatel GNSS input
Trimble GNSS input
Advanced Navigation Packet Protocol
CAN/CANopen
Table 14: Communication Specifications
6.4 Electrical Specifications
Parameter
Minimum
Typical
Maximum
Operating Voltage
9 V
36 V
Input Protection
-200 V
+200 V
Power Consumption
10 W without GNSS
12 W with GNSS
15 W
Inrush Current
1.67 A at 12 V
0.79 A at 24 V
RS232
Tx Voltage Low
-5.4 V
-5 V
Tx Voltage High
5 V
5.4 V
Tx Short Circuit Current
±60 mA
Rx Threshold Low
0.6 V
1.2 V
v1.2
Page 16
11 Oct 2022
Boreas Reference Manual • Specifications
