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User Manual
Airbridge cBTS3612 CDMA Base Station
Output voltage: +27!0.5V
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Output voltage range: +25~+29VDC
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Output over-voltage protection point: +30.5!0.5VDC
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DC output rated current: 65A
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Output current-limiting point: 68.5~71.5A
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Regulated voltage precision: Ÿ!1%
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Load regulation: Ÿ!0.5%
Voltage regulation: Ÿ!0.2%
Output noise voltage
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Balanced noise of phone: Ÿ2.0mV (300~3400Hz)
Broadband noise voltage: Ÿ30mV (3.4k~30MHz)
Peak-peak value noise voltage: Ÿ100mV (0~20MHz)
Discrete noise voltage:
Power efficiency: ¦85% (in full load)
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Dynamic performance
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Load effect recovery time: Ÿ200µs 25%~50%~25% load variance
Output overshoot: Ÿ5% output voltage setting value
Equipment delay: Ÿ5s
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Safety requirement
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Insulation resistance of input-case, input -output, output-case: ¦2 M Ù
Test conditions: ambient temperature: 20!5âC
Relative humidity: 90%
Test voltage: DC 500V
Insulation strength
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Input -output: AC 1000V/1min/30mA
Input -ground: AC 500V/1min/30mA
Output-ground: AC 500V/1min/30mA
Ÿ5mV (3.4kHz~150kHz )
Ÿ3mV (150kHz~200kHz)
Ÿ2mV (200kHz~500kHz)
Ÿ1mV (500kHz~30MHz)
50%~75%~50% load variance
2-53
System Description
2 Hardware Architecture
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