产品介绍
AXIS P8221 Network I\/O Audio Module provides eight configurable input\/output (I\/O) ports and audio capabilities to a network video system that either does not have such support or require additional support. AXIS P8221 complements Axis network video products and integrates easily into existing network video installations using VAPIX®.","Sensors such as a door switch, smoke detector, IR detector or glass break detector—used for triggering an alarm event—can be connected as inputs. Output ports can be connected to control devices or relays, for instance, to open\/close doors or turn on\/off lights upon alarm.","AXIS P8221 supports two-way audio in half or full duplex. It has a built-in low power amplifier for small speakers so there is no need for an external preamplifier. It also has phantom power for a balanced microphone.","AXIS P8221 has support for Power over Ethernet allowing easy, cost-efficient and reliable installation.
特性
- 八个可配置数字i/o端口
- 出色的音频质量
- 扬声器输出
- 平衡话筒支架
- 以太网供电
- 对遗留设备的控制
- 平衡麦克风的支持
产品替代
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