Connect the input and output signals

Access to the communication and strobe signals varies depending on how the MIC is connected to the receiver.

Standalone configuration

In a standalone configuration, the communication connections to the receiver are available on the OEM7 receiver.

Stack up configuration

In a stack up configuration, all of the communication connections to the MIC and the OEM719 receiver are available on the communications connector (P601) on the MIC. These connections include:

• MIC serial port

• OEM719 serial port (COM2)

• USB port

• Event1 trigger input

• Event2 trigger input

• 1 PPS (Pulse Per Second) output

• VARF (Variable Frequency) output

• Reset input

• Position Valid output

See MIC connectors for the pinouts of the communications connector.

All signal I/O with the exception of the USB port are at LVCMOS levels. To connect the MIC to devices that use other signals levels, such as a computer with an RS-232 serial port, an interface circuit that converts LVCMOS to the other signal level must be used.

Use a twisted pair for the USB port connection and keep the wires as short as possible.