Connecting The Antenna To The Receiver; Power Supply Requirements - Novatel OEM6 Series User Manual

Chapter 2
2.3.3

Connecting the Antenna to the Receiver

Connect the antenna to the receiver using a high quality coaxial cable (as discussed in Section 2.3.1
Choosing a Coaxial Cable on page 23).
For the OEM615, an interconnect adapter cable is required to convert the end of the coaxial
615
cable to the card's MCX female RF input connector. The RF connector location for the
OEM615 is shown in Figure 8, OEM615 Connector and Indicator Locations on Page 28. A
user supplied LNA_PWR supply is internally regulated to 5 VDC and sent to the center pin of
the MCX RF connector to power an external antenna (the return is the outer conductor of the
coax).
The antenna port is capable of providing up to 100 mA to a connected antenna (based on a 5
V input supply). Higher input voltages should follow the derating curve (refer to Appendix A for
details). The typical current draw for a NovAtel antenna is less than 40 mA.
For the OEM617D, an interconnect adapter cable is required to convert the end of the coaxial
617D
cable to the card's MMCX female RF input connector. The RF connector location for the
OEM617D is shown in Figure 9, OEM617D Connectors and Indicators on Page 29.
The OEM617D has an internal 5 V LNA_PWR supply, limited to 100 mA.
Refer to Appendix B for details.
For the OEM628, an interconnect adapter cable is required to convert the end of the coaxial
628
cable to the card's MMCX female RF input connector. The RF connector location for the
OEM628 is shown in Figure 10, OEM628 Connector and Indicator Locations on Page 29.
The OEM628 has an internal 5 V LNA_PWR supply, limited to 100 mA.
Refer to Appendix C for details.
For the OEM638, an interconnect adapter cable is required to convert the end of the coaxial
638
cable to the card's MMCX female RF input connector. The RF connector location for the
OEM638 is shown in Figure 11, OEM638 Connector and Indicator Locations on Page 30.
The OEM638 has an internal 5 V LNA_PWR supply (limited to 200 mA) and an optional LNA
supply that goes to the antenna with no regulation or derating.
Refer to Appendix E for details.
Refer to 4.7.6 Antenna LNA Power on page 64 for antenna power requirements.
2.4

Power Supply Requirements


Power to the NovAtel receiver card must be applied for >150 ms before any of the external
interfaces are powered on by the integrator's card.
This section contains information on the requirements for the input power to the receiver. Refer to the
following for complete power specifications:
• Appendix A, OEM615 Technical Specifications starting on page 100
• Appendix B, OEM617D Technical Specifications starting on page 112
• Appendix C, OEM628 Technical Specifications starting on page 122
• Appendix E, OEM638 Technical Specifications starting on page 145
24 OEM6 Family Installation and Operation User Manual Rev 7
Installation OEM6 Family Cards