This manual is intended for administrators and users of the AXIS P8221 Network I/O Audio Module, and is applicable for firmware release 5.10 and later. It includes instructions for using and managing the product on your network.
This manual describes the Axis P8221 Network I/O Audio Module, an eight‑port digital I/O and two‑way audio device that can be powered via PoE. It covers installation, configuration, and maintenance procedures for administrators and end users.
Key sections include an overview of hardware and features, instructions for accessing the product through a web browser, detailed audio and I/O configuration, network security settings, technical specifications, and troubleshooting guidance.
| Digital I/O ports | 8 configurable ports |
|---|---|
| Input voltage range | -40 V DC to +40 V DC |
| Output capability | Open‑drain, max load 100 mA, max voltage 40 V DC |
| Audio encoding (AAC‑LC) | 8 kHz 32 kbit/s, 16 kHz 64 kbit/s, 32 kHz 128 kbit/s |
| Power supply (DC) | 8 – 34 V DC, max 8.2 W |
| Power over Ethernet | IEEE 802.3af Class 3 |
| Dimensions | 32 × 99 × 118 mm |
| Weight | 335 g (0.74 lb) |
Yes, the P8221 can be powered via PoE using the IEEE 802.3af Class 3 standard.
The module provides eight configurable digital I/O ports.