AXIS C1211-E 4-inch Network Ceiling Speaker, 02323-001

AXIS C1211-E Network Ceiling Speaker – Compact 4-inch PoE Ceiling Speaker

The AXIS C1211-E is a compact, all-in-one recessed network ceiling speaker that delivers clear voice announcements over a single PoE cable. A 4-inch broadband cone in a sealed enclosure, a 7 W Class D amplifier and pre-configured DSP reach 93 dB with a wide 130° coverage pattern, while the built-in microphone handles two-way talk-back and remote speaker tests. Its plenum-rated (UL2043) backbox and IP44 front make it a fit for offices, retail and even protected outdoor spots such as under the eaves.

Key Specifications

Full specifications are listed in the Detailed Specifications tab.

Why Choose the AXIS C1211-E?

• Small Ø194 mm cut-out for discreet installs in standard ceilings
• Complete audio system: amplifier, DSP and AXIS Audio Manager Edge built in
• One PoE cable for power and network, no separate audio cabling
• Built-in microphone for talk-back and automatic speaker tests
• External microphone and line inputs for local audio sources
• Two supervised I/Os for PIR sensors, buttons or strobes
• Plenum-rated backbox limits noise spreading above the ceiling
• Axis Edge Vault cybersecurity with secure boot

Clear Voice for Everyday Announcements

The 4-inch sealed driver and pre-configured digital signal processing are tuned for intelligible speech at up to 93 dB, with a frequency response of 40 Hz to 16 kHz that also handles background music. Play live paging, scheduled announcements or pre-recorded messages stored on a microSD card, and let urgent messages override the schedule through content prioritization.

Smart Features at the Edge

The built-in microphone enables two-way talk-back with people under the speaker and runs the auto speaker test, so you can confirm remotely that each speaker works. An external microphone input helps when the speaker hangs far from the audience, and two supervised I/O ports connect PIR sensors, buttons or strobe lights. A front-facing LED adds visual status.

Open Integration and Audio Management

AXIS Audio Manager Edge runs on the speaker for zones of up to 200 speakers in 20 zones, scheduling and user management. Integrate it with AXIS Camera Station and partner VMS, with SIP phone systems verified with Cisco, Avaya, Asterisk and Grandstream, and with Webex and Zoom, or with mass notification platforms like Singlewire InformaCast and Alertus.

Discreet, Plenum-Rated Installation

The speaker mounts with plastic clamps in ceilings 0 to 60 mm thick through a Ø194 mm hole. Its backbox meets UL2043 plenum requirements, and the mesh can be repainted to match the room. For soft tile ceilings, add the AXIS TC1603 Tile Bridge; for conduit runs, the AXIS TC1602 Conduit Adapter.

Typical Applications

• Offices and meeting areas
• Retail stores and checkout zones
• School hallways and small classrooms
• Hotel corridors and lobbies
• Covered entrances and areas under eaves

Compatible Accessories

Compatible accessories for the AXIS C1211-E, available at Affinitech Store:

• AXIS TC1603 Tile Bridge (2-pack) for soft ceilings
• AXIS TC1602 Conduit Adapter (5-pack)
• AXIS TC1702 Back Cover (4-pack)
• AXIS TC1703 Mesh Cover (5-pack)
• AXIS TC1902 Ceiling Speaker Gasket (5-pack)
• AXIS Safety Wire 3M (5-pack)
• AXIS C8310 Volume Controller
• AXIS Device Microphone A
• AXIS T8351 Mk II Microphone 3.5 mm
• AXIS TU1002-VE Microphone Kit
• AXIS Surveillance Card 256 GB
• AXIS T8120 15 W 1-Port Midspan
• AXIS 30 W Midspan
• AXIS TU8011 4-port PoE Extender
• AXIS T8415 Wireless Installation Tool

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Frequently Asked Questions About AXIS C1211-E

How loud is the AXIS C1211-E?

It reaches a maximum sound pressure level of 93 dB, with a frequency response of 40 Hz to 16 kHz.

What size hole does it need?

A fixing hole of Ø194 mm (7.6 in), in ceilings 0 to 60 mm (0 to 2.4 in) thick.

Is it plenum rated?

Yes. The Axis datasheet lists UL2043 (plenum rating) among its environmental approvals.

Can it be used outdoors?

It is IP44 rated (IP40 above the ceiling) and is suitable for protected outdoor areas such as under the eaves. It operates from -30 °C to 50 °C.

How is it powered?

By Power over Ethernet IEEE 802.3af Type 1 Class 3, max 12.95 W.

Does it support two-way audio?

Yes. The built-in microphone supports two-way audio with optional full-duplex echo cancellation, and can be disabled.

Can I connect an external microphone?

Yes. It has an external microphone and line input in addition to the built-in microphone.

Does it work with SIP phone systems?

Yes. It supports SIP and is verified with SIP clients such as 2N, Yealink and Cisco, PBX servers such as Cisco Call Manager, Avaya and Asterisk, and Webex and Zoom.

What is the difference between the C1211-E and C1210-E?

The C1211-E uses a 4-inch driver (93 dB, 40 Hz - 16 kHz) in a smaller Ø215 mm housing, while the C1210-E uses a 6.5-inch coaxial driver (96 dB, 40 Hz - 20 kHz) for more bass and music.

What warranty does it have?

A 5-year Axis warranty.