ashtech Z-eurocard, Operation Manual

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16 Z-Sensor and Z-Eurocard Operation Manual
Z-Sensor
The sensor version of the Z-receiver has three RS-232 input/output (I/O) ports
embedded in a DB25 connector (ports A,B, and C are available to the user, while port
D can be used for an internal radio), a L1/L2-band RF port, an optional spread
spectrum radio RF port, and an optional external frequency BNC port.
Table 2.3 describes the front panel components of the Z-Sensor.
Figure 2.6: Z-Sensor Front Panel
Table 2.3: Z-Sensor Front Panel Description
Number Component Function
1 Radio Connector Allows RF connection of the embedded Spread Spectrum
Radio Receiver Board to the Spread Spectrum Antenna
TNC reverse polarity.
2 GPS Antenna
Connector The RF connector is a standard TNC-type female
receptacle wired for connection via 50-ohm coaxial cabling
to a GPS antenna with an integral LNA. The connector
shell is connected to the Z-Sensor common ground. The
TNC-type connector center pin pr5Vdc (to power
the LNA) and accepts 1227 and 1575 MHz RF input from
the antenna; the RF and DC signals share the same path.
3 On/Off Switch Turns the unit on and off.
4 Power/Satellites LED Flashing red light indicates power is applied to the receiver.
Number of green flashes indicates number of satellites the
receiver is locked to.