Operation OEM6 Cards and Enclosure
Chapter 4
OEM6 Family Installation and Operation User Manual Rev 7
63
4.7.2
CAN Bus
OEM6 cards incorporate a CAN Bus controller that 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 this API, contact
The OEM615, OEM617D and the OEM628 require CAN transceivers.
CAN interfaces can be accessed using NovAtel’s API, but shared signals must be disabled to avoid
conflicts. Refer to
Section A.1.1, Physical Description, Section C.1.1, Physical Description
and
in this manual
for pin-out information.
4.7.3
Strobes
OEM6 family receivers have inputs and outputs, referred to as strobes, that provide status and
synchronization signals. Not all strobes are provided on all receivers. Detailed information about OEM6
family strobes can be found in the following tables.
The USB ports are particularly sensitive to damage from ESD. NovAtel recommends that
conductors attached to the USB D+ and D- signal pins are terminated.
There are no CAN transceivers on the OEM615, OEM617D or OEM628. The cards require
external CAN transceivers and proper bus terminations.
615
The OEM615 and OEM617D have two CAN ports: CAN1 and CAN2 support up to 1 Mbps.
CAN1 is multiplexed with user VARF and EVENT2, so the following commands must be
issued to enable CAN1:
FREQUENCYOUT DISABLE
MARKCONTROL MARK2 DISABLE
628
The OEM628 card has two CAN ports: CAN1 and CAN2, both of which are brought out to
the expansion connector, P1502. CAN1 and CAN2 both support applications up to 1 Mbps.
CAN Bus functionality can be controlled through NovAtel’s optional API software. The API
header file includes documentation on using the CAN bus.
FPk6
The FlexPak6 has a CAN port that supports applications up to 1 Mbps (refer to
for input/output).
617D
Table 14, OEM615 Strobe Electrical
Table 19, OEM617D Strobe Electrical
Table 24, OEM628 Strobe Electrical
Table 35, OEM638 Strobes on Page 151 and Table 36, OEM638 Strobe Electrical
Specifications on Page 152
Table 30, FlexPak6 Port Pin-Out Descriptions
615
617D
628
638
FPk6
