Spectracom TSync-PCIe, Руководство пользователя

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Accuracy horizontal position: <6 meters (50%) <9 meters (90%)
Accuracy altitude position: <11 meters (50%) <18 meters (90%)
3.12.1 RF Connector, Internal GNSS Receiver
The internal GNSS RF connector supports the RF connection between the internal GNSS
receiver and an external L1 antenna. It consists of a female SMA connector. A short male SMA
to female N cable made from RG-316 coax is provided to connect to the antenna RF cable.
NOTE –
The provided cable should be used instead of an adapter. This relieves
strain on the connectors.
3.12.2 Electrical Characteristics, GNSS RF Signal
L1 GPS/GLONASS signals from antenna to on-board GNSS receiver
30 mA @ +5 V (±10%) provided to power antenna
3.13 External GNSS Receiver
3.13.1 Connector
A High-Density DB-15 connector is used to connect the external antenna (with its built-in GNSS
receiver) to the board.
3.13.2 Electrical Characteristics, Board to Receiver Transmission
RS-485 Differential Signal
+1.5 V to +2 V Common Mode Output Voltage
1.5 V min to 3.3 V max Differential Output Voltage Swing
3.13.3 Electrical Characteristics, Receiver to Board Transmission
RS-485 Differential Input
–7 V to +12 V common mode voltage input range, 200 mV
p-p
differntial voltage
threshold
14
CHAPTER
3
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Instruction Manual XYZ Rev. R
3.13 External GNSS Receiver