IP Ceiling Speaker

Discreet Design for Indoor IP Solutions

Based on open standards, the IP-A1PC238 IP Ceiling Speaker plug right into standard IP networks and can be easily integrated into your video management system (VMS) or SIP-based communication system. A single standard network cable provides both power and connectivity with your network. The IP-A1PC238 IP Ceiling Speaker comes with a built-in 8 W power amplifier and spring clamps for easy and quick installation. Its light weight and universal applicable diameter enable a variety of indoor applications.

Easy to customize over API (Application Programming Interface): Adapt the individual volume to the environmental noise level and optimize it to time of day, distance, and degree of emergency.

Flexible Group Paging: The IP-A1PC238 IP Ceiling Speaker can be addressed via multicast enabling audio paging into groups of IP devices simultaneously.

Application Examples:
Audio calls and paging into indoor areas like offices, conference areas, doctor's offices, educational facilities, hotels or malls.

  • Receive SIP audio, ONVIF* audio backchannel and multicast (up to 20 addresses)
  • Local broadcast using internal audio files
  • 16 cm (6”) cone-type speaker for in-ceiling installations
  • 8 W built-in amplifier
  • 2 control inputs and 1 control output
  • API (HTTP commands)
  • Audio file storage (20 files, total 80 MB, WAV/MP3)
  • Different playback programs (repeat, duration, weekly timer)
  • PoE-powered

*ONVIF is a registered trademark of ONVIF Inc.

Discover our products in 3-D view – and project them via AR into any room and get 3-D all-round view in real time

How can I turn, enlarge, move the object?
Rotate /Turn: Hold left click and drag at the same time or on a touch screen please drag with one finger.

Zoom: To zoom in or out, please scroll with the mouse wheel or on a touch screen please work with pinch-to-zoom i.e. pull the object apart with 2 fingers to zoom in.

Move the entire object: Hold right-click and drag or on a touchscreen please drag with 2 fingers.

Project into my own space:

Click AR (Augmented Reality) at the bottom right of the window. Now you can scan the QR code or simply open the link on your mobile device.

  • Specifications
  • Application examples
  • Tender text
  • Downloads
Specifications for product:
Power source

PoE (IEEE802.3af Class 3)

Power / current consumption

12.95 W (rated output)

5 W (IEC62368-1)

Frequency response

60 Hz - 20 kHz (peak -20 dB)

Rated output

8 W

Sensitivity (1 W, 1 m)

94 dB (500 Hz - 5 kHz, pink noise)

Max. SPL (1 m)

103 dB (8 W)

Speaker component

16 cm cone-type

Mounting hole

⌀ 200 ± 2 mm

Ceiling thickness

5 - 25 mm

Speaker mounting method

Spring clamp

Audio Codec

PCMU (G.711u), PCMA (G.711a), G.722

Network audio I/F

SIP Broadcasting Mode: PCMU/PCMA/G.722, P2P/SIP Server Connection

Multicast Broadcasting Mode: PCMU/PCMA/G.722, Auto codec recognition, 20 ports

VMS Broadcasting Mode: ONVIF Audio Backchannel, PCMU

Internal Message Broadcasting Mode

Note: Each broadcast mode can be assigned an order of priority using the Priority Setting function.

ONVIF is a registered trademark of ONVIF Inc.

Network control I/F

Remote API (HTTP commands)

Network I/F

100BASE-TX, Auto MDI/MDI-X, RJ-45 connector

Network protocol


Internal audio files

Max. 20 messages (Max. recording capacity: 80 MB)

Supported file formats:

    WAV file: 8/16/44.1/48 kHz sampling frequency, 8/16 bit, monaural/stereo

    MP3 file: 32/44.1/48 kHz sampling frequency, 64 - 320 kbps, CBR/VBR, monaural/stereo

Repeat playback: Playcount (1 - 10 times), Duration (5 - 3600 s)
                                or Timer (from start time to end time)

Interval time: 0 - 60 s, Delay time: 0 - 30 s

Trigger: Control Input or Remote API (HTTP)

Clock Accuracy

±13 s per month, Power outage protection period: 24 h (RTC time retention, at 40 °C)

Time Adjustment

Manual time setting, Time adjustment by NTP server

Control input

2 channels, no-voltage make contact inputs, open voltage: 5 V DC, short-circuit current: 2 mA or less, removable terminal block (6 pins)

Control output

1 channel, open collector output, withstand voltage: 30 V DC, control current: 10 mA or less, removable terminal block (6 pins)


LAN: LINK/ACT (green), STATUS (orange)


230 x 89 mm (Ø x D)


paint, traffic white (RAL 9016 or equivalent), frame: steel plate / grill: steel net

Operating temperature

0 °C to +50 °C

Operating humidity

90 %RH or less (no condensation)


230 x 89 mm (Ø x D)


Frame: Steel plate, traffic white (RAL 9016 or equivalent), paint
Grill: Steel net, traffic white (RAL 9016 or equivalent), paint


880 g

Accessory (included)

Pattern paper x1, Removable terminal plug (6 pins, preinstalled on the unit) x1

Application examples
Tender text