Product Overview
Suspended from high ceilings in warehouses, retail floors, transit spaces, and open-plan commercial environments, the AXIS C1511 Network Pendant Speaker delivers managed audio coverage where wall-mounted units cannot reach. Designed as a self-contained pendant speaker, it incorporates a 4-inch broadband dynamic cone speaker, a built-in 7 W Class D amplifier, and a 130-degree coaxial coverage pattern that projects audio evenly across large open areas from a single mounting point. Featuring Power over Ethernet (IEEE 802.3af), the C1511 requires only a single network cable for both data and power, simplifying installation significantly in high-ceiling environments. Built with an embedded DSP and AXIS Audio Manager Edge, it supports audio zone management, scheduling, and content distribution without requiring a separate server or amplifier rack. It also integrates with SIP/VoIP telephony and Axis VMS platforms, making it a practical fit for facilities already operating Axis infrastructure. Rated IP40 and operating across -30°C to +50°C, it suits conditioned commercial interiors and cool-store environments.
Key Capabilities
Built-In 7 W Class D Amplifier
No external amplifier is needed. The C1511 drives its own 4-inch broadband cone speaker directly, reaching a maximum SPL of 93 dB. This reduces rack space, cabling complexity, and equipment cost in distributed audio installations across large commercial facilities.
Single-Cable PoE Power and Data
Powered via IEEE 802.3af PoE (up to 12.95 W), the C1511 receives power and network connectivity through one standard Cat cable. This is especially practical for high-ceiling pendant installations where running separate mains power to each speaker is costly or structurally difficult.
130-Degree Coaxial Coverage Pattern
The wide coaxial dispersion of 130 degrees ensures even audio projection below the speaker, reducing the number of units required to cover a large open floor plan. This matters in warehouses, retail halls, and transit concourses where ceiling heights are substantial.
Embedded AXIS Audio Manager Edge
Audio zone management, content scheduling, user permissions, and playback control are handled directly on the device via AXIS Audio Manager Edge. This eliminates the need for a dedicated audio server, lowering the total infrastructure cost for multi-speaker deployments across a site.
Built-In Microphone with Two-Way Audio
The built-in microphone supports remote health testing of the speaker unit as well as half-duplex two-way audio talkback. This allows operators to respond to announcements or conduct real-time communication from a control point, without deploying a separate intercom device at the same location.
SIP/VoIP and VMS Integration
Support for SIP/PBX telephony and open-standard protocols including RTSP, RTP, and HTTPS enables the C1511 to connect with existing phone systems and video management platforms such as AXIS Camera Station and AXIS Companion, allowing audio to be coordinated alongside video surveillance.
Best For
- High-Ceiling Commercial Spaces: The pendant suspension design and 130-degree coverage pattern are suited to warehouses, distribution centres, and open retail floors where the speaker can project downward from ceiling height across a wide area.
- PoE Network Audio Infrastructure: Sites already running structured Cat cabling benefit from PoE power delivery, allowing the C1511 to be installed at any network drop point without separate mains runs to each speaker position.
- Axis-Integrated Facilities: Organisations running AXIS Camera Station or AXIS Companion VMS can connect the C1511 directly to their existing network, coordinating public address audio with video surveillance and triggering announcements from the same management interface.
- Managed Multi-Zone Audio Deployments: The embedded AXIS Audio Manager Edge enables zone-based scheduling and content management across multiple speakers from a browser interface, without requiring a dedicated audio server or on-site PC.
Why Choose the AXIS C1511
The AXIS C1511 stands apart from passive pendant speakers by combining amplification, audio management, and network connectivity into a single PoE-powered unit. Where a conventional speaker requires a separate amplifier, audio distribution matrix, and power supply, the C1511 delivers all of this from one device. The built-in 7 W Class D amplifier reaches 93 dB SPL, the embedded DSP handles pre-configured signal processing, and AXIS Audio Manager Edge manages zones, schedules, and content without an external server. The built-in microphone adds remote health monitoring and two-way talkback functionality. SIP integration allows the unit to operate within existing telephony infrastructure, and compatibility with AXIS Camera Station ties it to video management workflows. With an operating range of -30°C to +50°C, it handles cool-store environments as well as ambient commercial spaces. The AXIS C1511 is available at Security Wholesalers and suits integrators designing IP audio into Axis-based commercial installations.
Buyer Decision Tips
Buyer Tip – IP Rating and Installation Environment: The C1511 carries an IP40 rating, meaning it is protected against dust ingress but is not rated for moisture or water exposure. It is suitable for conditioned indoor environments including warehouses, retail spaces, schools, and cool stores, but should not be installed in wet areas, outdoor spaces, or locations exposed to spray, condensation, or washdown. Confirm ceiling conditions before specifying this unit in food processing or industrial wash-bay environments.
Buyer Tip – Coverage Planning and Speaker Count: The 130-degree coaxial coverage pattern is generous, but the effective listening area per unit will depend on ceiling height, background noise levels, and the required speech intelligibility. For very large open floors with high ambient noise, calculate coverage radius based on the 93 dB SPL and expected SPL at listener distance. Pairing multiple C1511 units across defined audio zones and managing them through AXIS Audio Manager Edge gives precise control over volume and scheduling per area.
Key Features & Technical Specifications
| Product Type |
Network Pendant Speaker |
| Speaker Driver |
4-inch broadband dynamic cone speaker |
| Amplifier |
Built-in 7 W Class D amplifier |
| Max Sound Pressure Level |
93 dB |
| Frequency Response |
70 Hz – 16 kHz |
| Coverage Pattern |
130-degree coaxial |
| Built-In Microphone |
Yes (can be disabled) |
| External Audio Input |
External microphone / line-in |
| Audio Encoding |
AAC LC 8/16/32/48 kHz, G.711 PCM 8 kHz, G.726 ADPCM 8 kHz, Axis µ-law 16 kHz, WAV, Opus 8/16/48 kHz, MP3 mono/stereo 64-320 kbps |
| DSP |
Built-in, pre-configured |
| Audio Management |
AXIS Audio Manager Edge (embedded) |
| Power Supply |
PoE, IEEE 802.3af, Type 1 Class 3 (max 12.95 W) |
| IP Rating |
IP40 |
| Operating Temperature |
-30°C to +50°C |
| Dimensions |
22.1 x 15 cm |
| Weight |
2.6 kg |
| Colour |
Off-White |
| Mounting |
Suspension (hook/pendant) |
| Network Protocols |
IPv4/v6, HTTP, HTTPS, SSL/TLS, QoS Layer 3 DiffServ, FTP, SFTP, CIFS/SMB, SMTP, Bonjour, UPnP, SNMP v1/v2c/v3, DNS, DynDNS, NTP, RTSP, RTP, TCP, UDP, IGMP, RTCP, SIP/PBX |
| VMS Compatibility |
AXIS Companion, AXIS Camera Station |
| Processor / Memory |
NXP i.MX 6SoloX SoC, 512 MB RAM, 512 MB Flash |
| SKU / Part Number |
02390-001 |
Ideal Use Cases
Warehouses and Distribution Centres
The pendant suspension design places the C1511 at optimal height beneath warehouse racking structures. The 130-degree coverage pattern and 93 dB SPL handle high ambient noise from forklifts and conveyor systems, delivering clear public address audio across large floor areas from a compact unit.
Retail Floors and Shopping Centres
The off-white finish and compact pendant form factor suit open retail ceilings where visual discretion matters alongside performance. AXIS Audio Manager Edge allows different background music or announcement schedules to be programmed per zone, supporting varying content across departments or trading hours.
Schools and Educational Facilities
Zone-based scheduling through AXIS Audio Manager Edge allows bell tones, announcements, and emergency broadcasts to be targeted to specific areas of a school campus. PoE delivery means installation is straightforward in existing network-cabled buildings without additional electrical work at each speaker position.
Transport Terminals and Transit Concourses
Large open concourse areas in transit hubs benefit from the C1511’s wide dispersion and high SPL output. SIP/VoIP integration allows the speaker to receive announcements from an existing telephony or public address controller, and the built-in microphone supports talkback from the speaker location back to a control room.
Cold Storage and Temperature-Controlled Environments
With an operating temperature floor of -30°C, the C1511 functions in refrigerated warehouse and cool-store environments where standard commercial speakers are not rated. The IP40 dust rating provides adequate protection for conditioned dry-cold storage, covering sites where public address is required inside temperature-controlled zones.
Choosing the Right Model
- Choose this model if: Your installation involves high-ceiling pendant mounting in a conditioned commercial indoor environment, you want PoE-powered network audio without a separate amplifier, and you need embedded zone management via AXIS Audio Manager Edge or SIP telephony integration.
- Choose a different model if: Your installation is outdoors or in a wet area where a higher IP rating such as IP65 or IP66 is required, as the C1511’s IP40 rating does not provide protection against water ingress. For wall-mounted indoor applications or smaller spaces where a pendant form factor is not practical, a surface-mount or ceiling-tile speaker may be better suited.
FAQs
- What does the IP40 rating mean for where I can install the AXIS C1511?
IP40 means the C1511 is rated against solid particle ingress of objects larger than 1 mm but carries no water ingress rating at all. It is suited to dry commercial interiors including warehouses, retail floors, schools, and conditioned cool stores. It should not be installed outdoors, in wet rooms, in areas exposed to spray or condensation, or in industrial washdown environments where moisture is present.
- Does the C1511 require an external amplifier?
No. The C1511 has a built-in 7 W Class D amplifier that drives its own 4-inch broadband cone speaker directly. This is a fully self-contained powered speaker requiring only a PoE network connection. No separate amplifier, audio distribution matrix, or rack equipment is needed at the speaker end, which significantly simplifies installation in high-ceiling environments.
- How is the AXIS C1511 powered and what cabling does it need?
The C1511 is powered via Power over Ethernet, specifically IEEE 802.3af (Type 1 Class 3), with a maximum draw of 12.95 W. A single standard Cat cable delivers both network data and power to the unit. This makes it straightforward to install at any existing PoE network switch port without running separate mains cabling to each speaker position in the ceiling.
- Can the C1511 be used for two-way communication?
Yes. The C1511 has both a built-in speaker and a built-in microphone, supporting half-duplex two-way audio talkback. This allows an operator at a control point to speak through the speaker and also receive audio from the speaker’s location, enabling communication without deploying a separate intercom device at the same ceiling position. The microphone can also be used for remote health testing of the unit.
- What is AXIS Audio Manager Edge and does it require a separate server?
AXIS Audio Manager Edge is an audio management application embedded directly in the C1511. It runs on the device itself and is accessed via a web browser on the same network. It supports zone definition, content scheduling, user management, and playback control across multiple speakers. No dedicated audio server or on-site PC is required to manage audio zones, which reduces infrastructure cost in multi-speaker deployments.
- Can the C1511 integrate with an existing VMS or phone system?
Yes. The C1511 supports SIP/PBX telephony protocols, allowing it to register with an existing IP phone system and receive calls or announcements from a standard telephony controller. It is also compatible with AXIS Camera Station and AXIS Companion VMS platforms, allowing audio events to be coordinated with video surveillance workflows across the same Axis network infrastructure.
- What audio formats does the C1511 support for playback and streaming?
The C1511 supports AAC LC at 8, 16, 32, and 48 kHz; G.711 PCM at 8 kHz; G.726 ADPCM at 8 kHz; Axis µ-law at 16 kHz; WAV; Opus at 8, 16, and 48 kHz; and MP3 in mono or stereo from 64 kbps to 320 kbps. This range covers standard VoIP codecs for telephony integration as well as higher-quality formats for background music and scheduled announcement content. The AXIS C1511 is part of the Security Wholesalers range and is supplied to integrators specifying Axis IP audio infrastructure across commercial installations.
Additional Information
AXIS 02390-001 Datasheet
