Technical data

Chapter 1 - System Description
Alvarion Hardware
GPS Receiver: Specification
The GPS Timing Receiver for the Alvarion eMGW/MGW System,
includes fittings and attachments for the majority of installations.
The GPS Receiver includes Motorola™ M12 technology forming its
receiver section, plus the latest in PLD technology to provide the signal
processing and digital support features.
Figure 1-1: Alvarion GPS Timing Receiver
The GPS Timing Receiver is a complete stand-alone system, designed to
operate in an internal environment requiring only power and GPS
antenna connections.
On the Timing Receiver, there is one R.F. antenna input, a 1PPS port
providing precise timing, one 2.048MHz frequency output, plus two
RS232 serial ports providing command/control functions. A Time of
Day channel also supplies time information.
The GPS Receiver is thermally designed to ensure operation in the
temperature range 0°C to +60°C, with a maximum temperature shock
rate of 10°C per hour when in holdover mode. A full technical
specification is given in Appendix A, page A-1.
Input Power
The GPS is operated from a nominal supply voltage of 48 volts DC (36-
72 volts). This power rating is printed on the casing, above the power
connector on the back of the GPS Timing Receiver.
GPS Timing Receiver Installation and Operation Manual
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