Axis P8221 Network I/O Audio Module provides eight configurable input/output (I/O) ports & 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 & 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 & reliable installation.