Overview
Axis T6112 MKII Audio and I/O Interface
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Bundle Summary
Overview
Axis T6112 MKII Audio and I/O Interface
The AXIS T6112 MKII Audio and I/O Interface extends microphone and digital I/O connectivity to Axis network cameras that lack these capabilities. Using Portcast technology, the device shares the connected camera's IP address, delivering integrated audio and I/O functionality in a single network stream without additional network overhead or management complexity.
Key Features
- Two-way audio with voice enhancement for real-time communication
- Dual external microphone inputs with automatic gain control via 3.5mm connectors
- Portcast technology—no additional IP address required
- Single network stream combining audio and video for improved bandwidth efficiency
- Configurable supervised I/O with two digital inputs/outputs (12VDC output, 50mA max load)
- 4-pin 2.5mm terminal block connectors for contact closure and alarm integration
- Wall or ceiling mount installation flexibility
Technical Specifications
- Audio Codecs: 16-bit LPCM, AAC-LC (8/16/32/44.1/48 kHz), G.711 PCM (8 kHz), G.726 ADPCM (8 kHz), Opus (8/16/48 kHz)
- Power: PoE Class 2
- Connectivity: Ethernet (wired)
- Operating Temperature: -40°C to 50°C (-40°F to 122°F)
- Mounting: Wall or ceiling
- Weight: 0.51 lbs
- Warranty: 5 years
- Compatibility: All supported Axis network cameras
Applications
The T6112 MKII is ideal for surveillance deployments requiring audio capture and digital I/O integration without expanding network infrastructure. Common use cases include two-way audio at entry points, audio monitoring in restricted areas, alarm integration, and voice communication in facilities management.

The Portcast architecture delivers significant operational advantages in enterprise deployments. By eliminating the need for a dedicated IP address, the T6112 MKII reduces DHCP overhead, simplifies network segmentation policies, and streamlines VMS management—each camera and its audio/I/O interface operate as a single logical entity. The dual microphone inputs with AGC provide flexible source configurations, whether combining ambient sound with directional audio or supporting redundant capture points.
The configurable supervised I/O enables alarm integration without external controllers, making this interface particularly valuable in access control and perimeter security applications where contact closures and 12VDC signaling are essential. Wide operating temperature range (-40°C to 50°C) ensures reliability in both indoor climate-controlled spaces and outdoor-adjacent installations.
Product Documentation
System Design, Deployment & Technical Support
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
System Design Assistance
- Get help validating product compatibility
- Coverage requirements
- Storage planning and deployment architecture before you buy.
Deployment & Configuration Support
- Access fixed-scope support for rollout planning
- User setup guidance
- Migration and system standardization across single-site or multi-site deployments
Guides, Tools & Calculators
- PoE requirements
- Storage retention
- Camera selection and deployment methodology