Wavenet Technology Pty Ltd. BM2900D Benutzerhandbuch

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Testing ___________________________________________________ Boomer II User Manual & Integrator’s Guide 
Copyright Wavenet Technology © November 2003 
74 
BM210012WT37 
the modem and host/terminal. Ensure that the following hardware 
integration issues are evaluated: 
RF Immunity  
RF transmissions of the modem do not interfere with operation of the 
host/terminal. 
Electrical Signalling  
Power sources and interface are functionally compatible between the 
host/terminal and the modem. 
Physical Parameters  
Physical configuration of the modem inside the host/terminal provides 
adequate ventilation, mounting, shielding, and grounding. 
Antenna Performance  
Integrated antenna system meets the required ERP specifications, 
VSWR specifications, antenna propagation patterns and any applicable 
network operator requirements. 
ESD Requirements  
Host/terminal design protects the modem from ESD.  
RF Re-radiation  
Host/terminal does not allow spurious emissions in excess of 60dBc, as 
caused by carrier re-radiation (for 3V/m fields). 
Desense and EMI 
Any host/terminal in which the modem is integrated generates some 
EMI (electromagnetic interference), which tends to desensitise the 
modem’s ability to receive at certain frequencies.  
Wavenet can provide a facility for testing the amount of desense that 
your modem experiences while in a host/terminal. Specifically, modem 
receiver sensitivity is recorded while operating with the host/terminal 
under test. For this test, you provide an integrated product, including 
antenna, power supply and any peripherals. Wavenet Technology then 
produces a test graph that reports the amount of desense. All desense 
testing is generally performed at Wavenet Technology’s facilities. 
To prepare for the desense test, provide Wavenet with hardware to 
generate EMI that is representative of the final product, including the 
cables, power supplies, and other peripheral devices. The host/terminal 
must supply the modem the appropriate power requirements. The 
host/terminal hardware must be running its CPU, LEDs, and serial 
ports, etc (if so configured). 
You must supply either the pass-through mode functionality (“Enabler 
Functions” on page 73) or provide physical access the serial port of the