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Chapter 6 - Connectors 6.2.2 Data emitter socket (DATA) 5 4 9 3 8 2 7 1 6 SubD 9-pin female connector Pin Description Pin Description 1 GND 6 SPI_SS Output 2 GND 7 Data Output 3 SPI_SCK Output 8 12 V 4 SPI_MOSI Output 9 12 V 5 SPI_MISO Output This socket is used to connect the AMU to the data emitter unit of the antenna assembly. Data emitter configuration SPI bus: RS 232 levels ~ ±10V; Data emitter Tx Data: RS 232 levels ~ ± 10 V 6.2.3 RF receiver / UHF input connectors (3x) These sockets are used to connect the AMU to the antenna receiver units of the antenna assembly. Always use 75 cables. Phantom power of +9 V is always switched on. BNC connectors 6.2.4 RF receiver / UHF output connectors (3x) These sockets are for measurement purposes only. Use short 75 cables only for measuring equipment. Caution: The RF gain between UHF In and UHF out depends on UHF In power: BNC connectors HD Wireless User’s Guide (v6.1) ~ +3 dB for UHF In power < ~ -45 dBm ~ -15 dB for UHF In power > ~ -45 dBm 69