F4 Series GPS Receiver Module Data Guide Warning: Some customers may want Linx radio frequency (RF) Table of Contents products to control machinery or devices remotely, including machinery or devices that can cause death, bodily injuries, and/or property 1 Description damage if improperly or inadvertently triggered, particularly in industrial settings or other applications implicating life-safety concerns (Life and 1 Features Property Safety Situations). 1 Applications NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE 2 Ordering Information SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY 2 Electrical Specifications SITUATIONS. No OEM Linx Remote Control or Function Module 2 Electrical Specifications should be modified for Life and Property Safety Situations. Such modification cannot provide sufficient safety and will void the products 3 Absolute Maximum Ratings regulatory certification and warranty. 4 Pin Assignments Customers may use our (non-Function) Modules, Antenna and 4 Pin Descriptions Connectors as part of other systems in Life Safety Situations, but 5 A Brief Overview of GPS only with necessary and industry appropriate redundancies and in compliance with applicable safety standards, including without 5 Client Generated Extended Ephemeris (CGEE) limitation, ANSI and NFPA standards. It is solely the responsibility 6 Time To First Fix (TTFF) of any Linx customer who uses one or more of these products to 7 Module Description incorporate appropriate redundancies and safety standards for the Life and Property Safety Situation application. 7 Power Supply Requirements 7 The 1PPS Output Do not use this or any Linx product to trigger an action directly from the data line or RSSI lines without a protocol or encoder/ 8 Antenna Considerations decoder to validate the data. Without validation, any signal from 8 Power Control another unrelated transmitter in the environment received by the module could inadvertently trigger the action. 10 Module Power-up Sequence 11 Module Power-down Sequence All RF products are susceptible to RF interference that can prevent 12 Slow Start Time communication. RF products without frequency agility or hopping implemented are more subject to interference. This module does not 12 Protocols have a frequency hopping protocol built in. 13 Interfacing with NMEA Messages Do not use any Linx product over the limits in this data guide. 14 NMEA Output Messages Excessive voltage or extended operation at the maximum voltage could 19 NMEA Input Messages cause product failure. Exceeding the reflow temperature profile could cause product failure which is not immediately evident. 36 Typical Applications 37 Master Development System Do not make any physical or electrical modifications to any Linx 38 Board Layout Guidelines product. This will void the warranty and regulatory and UL certifications and may cause product failure which is not immediately evident. 39 Pad Layout 40 Microstrip Details