3.1.14 I/O Port; 3.1.15 Expansion Port - Novatel ProPak6 User Manual

Chapter 3
3.1.13.1 Configure COM 1, 2 and 3
COM1, COM2 and COM3/IMU can communicate using the RS-422 protocol in addition to the standard
RS-232 protocol. On the ProPak6, the IMUCOM port is equivalent to COM3.
There are 2 ways to select between RS-232 and RS-422 protocol for the various ports (default is
RS-232).
1. A Configuration Code obtained from NovAtel Customer Support can be installed in the receiver to
select the protocol for COM1 and COM3/IMU independently.
2. The SERIALPROTOCOL command can be used to select RS-232 or RS-422 for any of the 3 COM
ports. This method overrides the protocol set using the previous method.
The configuration code will configure the ports at boot time so the receiver may be loaded over the
configured protocol.
For the SERIALPROTOCOL command method, commands are executed after the receiver has completed
booting and so the communication lines are configured as RS-232 during boot. For automatic
configuration, the SERIALPROTOCOL command can be saved using the SAVECONFIG command.

The SERIALCONFIG command is used to configure certain protocol settings when
using either RS-232 or RS-422.
Refer to the OEM6 Firmware Reference Manual

3.1.14 I/O Port

3.1.14.1 Strobes
ProPak6 has configurable inputs and outputs, referred to as strobes, that provide status and
synchronization signals. Refer to Table 16, I/O Port Pin-Out Descriptions on page 116 for details
Also refer to the Chapter 4, Ethernet Configuration on page 73 for details and to the IOCONFIG,
EVENTINCONTROL and EVENTOUTCONTROL commands in the
Manual (OM-20000129) for configuration and command details.

3.1.15 Expansion Port

The ProPak6 Expansion port supplies two CAN ports and a USB Host port which is reserved for future
use. Refer to Table 17, Expansion Port Pin-Out Description on page 116 for details.
• CAN1
• CAN2
• USB Host (reserved for future use)
3.1.15.1 CAN Bus
The ProPak6 CAN Bus controller supports physical layer signals and low level messages specified in the
appropriate sections of the J1939 and ISO11783 standards. Manufacturers can also create messages
specific to their application without violating these standards. To facilitate manufacturer messages,
NovAtel provides an Application Program Interface (API). To obtain information about the NovAtel API,
contact www.novatel.com/support.
The ProPak6 has two CAN ports: CAN1 and CAN2. Both CAN ports are brought out to the expansion
port. CAN1 and CAN2 both support applications up to 1 Mbps.
CAN interfaces are accessed using NovAtel's API, but shared signals must be disabled to avoid conflicts.
Refer to Appendix A, Technical Specifications on page 110 for further details.
Proper bus termination is required.
42
(OM-20000129) for command details.
OEM6 Family Firmware Reference
ProPak6 Installation and Operation User Manual Rev 4
Operation