Ems Performance - Huawei Airbridge BTS3612A-1900 Technical Manual

Technical Manual
Airbridge BTS3612A CDMA Base Station
B.2 EMS Performance
I. RF EM field immunity (80~1000MHz)
RF EM field immunity indices are listed in Table B-3.
Table B-3 RF EM field immunity indices
Whole cabinet
Note:
Test method complies with IEC1000-4-3 [9].
II. Voltage dips and short interruptions immunity
Among all test items of EMS, the requirement for continuous interference immunity is
class A and the requirement for transient interference immunity is class B.
Requirements for voltage dips and short interruptions is shown in Table B-4.
Table B-4 Voltage dips and short interruptions indices
AC port
Note:
Test method complies with IEC61000-4-11 [13].
Port
Port Test level
Dip 30%
Duration: 10ms
Dip: 60%
Duration: 100ms
Dip: over95%
Duration: 5000ms
Level
3V/m
Performance class
A
With backup power: A
With no backup power: The communication link need
not be maintained. It can be re-created and the
subscriber data can be lost.
With backup power: A
With no backup power: The communication link need
not be maintained. It can be re-created and the
subscriber data can be lost.
B-2
System Principle
Appendix B EMC Performance
Performance class
A