u-blox NORA-W10 Series System Integration Manual page 55

Abbreviation Definition
PCIe PCI Express
PCM Pulse-code modulation
PHY Physical layer (of the OSI model)
PMU Power Management Unit
RF Radio Frequency
RSDB Real Simultaneous Dual Band
RST Request to Send
SDIO Secure Digital Input Output
SMD Solder Mask Defined
SMPS Switching Mode Power Supply
SMT Surface-Mount Technology
SSID Service Set Identifier
STA Station
TBD To be Decided
THT Through-Hole Technology
UART Universal Asynchronous Receiver-Transmitter
VCC IC power-supply pin
VIO Input offset voltage
VSDB Virtual Simultaneous Dual Band
VSWR Voltage Standing Wave Ratio
WFD Wi-Fi Direct
WLAN Wireless local area network
WPA Wi-Fi Protected Access
Table 12: Explanation of the abbreviations and terms used
UBX-22005601 - R04
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NORA-W10 series - System integration manual
Appendix Page 55 of 56