Novatel OM-20000077 Electrostatic Discharge, Equipment Interconnection, Serial Connection

Chapter 3 Installation

In order for the SUPERSTAR II to perform optimally, the following additional equipment is required:

•NovAtel GPS antenna

•NovAtel coaxial cable

•Regulated power supply providing +5 VDC

•A wiring harness to provide power (connected to J1) as an interface for power, communications and signals

•Data communication equipment capable of TTL serial communications

See Appendix B, FlexPak-SSII Specifications, starting on Page 49 for a description of the type of enclosure equipment required for the receiver to operate.

3.1Electrostatic Discharge

Electrostatic discharge (ESD) is a leading cause of failure of electronic equipment components and printed circuit boards containing ESD-sensitive devices and components. It is imperative that ESD precautions be followed when handling or installing the SUPERSTAR II printed circuit board. See also the electrostatic discharge notice on Page 10 of this manual.

Leave the SUPERSTAR II in its anti-static packaging when not connected in its normal operating environment. When removing the SUPERSTAR II from the ESD-protective plastic, follow accepted standard anti-static practices. Failure to do so may cause damage to the SUPERSTAR II.

When you remove the SUPERSTAR II from the original packing box, it is recommended that you save the box and ESD protective plastic for future storage or shipment purposes.

REMEMBER!

•Always wear a properly grounded anti-static wrist strap when handling the SUPERSTAR II.

•Always hold the SUPERSTAR II by its corners or edges, and avoid direct contact with any of the components.

•Do not let the SUPERSTAR II come in contact with clothing at any time because the grounding strap cannot dissipate static charges from fabrics.

•Failure to follow accepted ESD handling practices could cause damage to the SUPERSTAR II.

•Warranty may be voided if equipment is damaged by ESD.

3.2Equipment Interconnection

As mentioned in Chapter 1, Introduction, starting on Page 14, the receiver can be provided either as an OEM board, or within a FlexPak-SSII enclosure. The interconnection of the OEM board format is guided by its physical and electrical specifications as detailed in Section 3.4, Connectors and Connector Pins Assignment starting on Page 22. A complete description of the FlexPak-SSII is provided in Appendix B, FlexPak-SSII Specifications, starting on Page 49.

3.2.1Serial Connection

The receiver includes two serial communication ports. COM1 and COM2 are detailed in Section 3.4.2, Serial Data Interface starting on Page 23. Serial communication with the receiver must be performed on COM1. The maximum data transfer rate is 19200 bps. The other serial port, COM2, is used for a differential link, and its minimal data transfer rate is 9600 bps. Communication with COM1 and COM2 is through two Deutsch connectors on the FlexPak-SSII.

Please refer to the L1 GPS Firmware Reference Manual for a discussion on the I/O protocol.

20 SUPERSTAR II User Manual Rev 3