المميزات
- GB9221 series fire alarm broadcast amplifiers are an extension device for emergency broadcast at fire or other accident scenes.In the field of fire broadcast, GB9221 must be used with the GB9242(Fire Broadcasting Host)to complete the fire broadcast. Background music broadcast can be directly played by external input source signals (such as CD/MP3 player, tuner, etc.) when there’s no accident event.
المواصفات الفنية
| Power supply | AC220V(+10%,-15%,50Hz) |
|---|---|
| Line input sensitivity | 300mV ～775mV（line1、line2） |
| Line output level | 500mV ± 100mV |
| Effective frequency range for distortion limitation | 80Hz ～ 8kHz |
| Total harmonic distortion | < 5% |
| SNR | > 70dB |
| Monitor power | 3W |
| Fixed output voltage | 120V（fixed voltage mode） |
| Rated output power | 150W/300W/500W |
| Working environment | a）temperature 0℃-40℃b）humidity <92％ |
| Insulation resistance | a）backup power input&the chassis ＞20MΩ（DC500V）b）AC input voltage&the chassis ＞50MΩ(DC500V)c）fixed output voltage&the chassis ＞50MΩ(DC500V) |
| Electrical strength | no breakdown between AC input&the chassisleakage current＜5mA（AC2000V |
المستندات
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