Product Overview
Polycom HDX Ceiling Microphone Array - Omnidirectional 360° Voice Pickup, White, Unused
Condition
Unused NOS unit sourced from a government research facility. Appears unused with no signs of installation or wear - the spherical microphone body shows the Polycom logo and red emblem cleanly with no visible damage. The kit is missing a couple of cables; please see photos for exact included items. Photos show the specific unit you will receive, including the microphone assembly (PN 2215-26932-001, S/N 00631A, date code 20100913), ceiling bushing trim (PN 2215-09588-001), a coiled black cable, a white cable with XLR-style connectors, and the HDX Ceiling Microphone Array setup guide.
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Product Overview
Polycom 2215-26928-001 is a white omnidirectional ceiling microphone array designed for Polycom HDX video conferencing systems and SoundStructure audio devices. It mounts flush to the ceiling and captures voice from all directions in the room, keeping conference tables clear of microphone hardware while delivering 360-degree audio coverage. The microphone connects to compatible Polycom HDX codecs via a Conference Link digital interface, integrating directly with the system's built-in echo cancellation, automatic noise suppression, and automatic gain control. A single array covers approximately 400-700 square feet; multiple arrays can be chained to cover larger spaces.
Key Features
- Part number: 2215-26928-001, Rev C, made in Thailand
- Color: White - matches white HDX system installations
- Omnidirectional ceiling-mount microphone array with 360-degree voice pickup
- Compatible with Polycom HDX 6000, 7000, 8000, and 9000 series video conferencing systems and SoundStructure C-series devices
- Conference Link digital interface connection - requires plenum-rated shielded CAT5e crossover cable
- Supports Polycom Siren 22 stereo audio, Instant Adaptation Echo Cancellation, Automatic Noise Suppression, and Automatic Gain Control
- Single array covers approximately 400-700 sq ft; chainable for larger rooms
- CE, FCC, and RoHS markings confirmed on electronics console (PN 2215-26932-001)
- Adjustable drop height from ceiling
Applications
- AV integrators mounting ceiling audio for a new HDX-equipped conference room where tabletop microphones would clutter the table or conflict with the room's design
- IT departments replacing a failed ceiling microphone in an existing Polycom HDX installation to restore full audio coverage before a critical meeting cycle
- Facilities managers expanding audio pickup in an existing multi-microphone chain - adding a second array to cover overflow seating or an L-shaped room
- Corporate AV teams commissioning a conference room upgrade and configuring microphone signal levels, echo cancellation thresholds, and gain structure within the HDX codec interface
Frequently Asked Questions
Which Polycom systems is this microphone compatible with?
It is designed for Polycom HDX series video conferencing systems - including HDX 6000, 7000, 8000, and 9000 series - and Polycom SoundStructure C-series audio devices. Connection is via the Conference Link digital interface. It is not a standalone microphone and does not connect to non-Polycom conferencing systems.
What cables are needed, and which are missing from this kit?
Polycom HDX ceiling microphone installations typically require a plenum-rated shielded CAT5e crossover cable (from the codec or wall plate to the electronics console) and a short drop cable from the console to the microphone. This kit is missing some cables - please review the photos carefully to confirm exactly which items are included before purchasing. The microphone assembly, ceiling bushing trim, one coiled black cable, one white cable with XLR-style connectors, and the setup guide are visible in the photos.
Is this a "full" kit or an "extension" kit?
The 2215-26928-001 is cross-referenced in some sources with the extension kit part number 2200-23810-002. The exact kit classification for this specific unit is not confirmed. Buyers planning to use this as the primary microphone in a new installation should verify which cables are present against their system's requirements before purchasing.
What does the date code tell me about this unit?
The electronics console label shows date code 20100913, indicating manufacture in September 2010. The unit appears unused and shows no signs of installation. It was sourced from a government research facility.
Is a wall plate included?
A wall plate is not visible in the photos. Please review the photos for the complete list of included items.
A ceiling microphone from a government research facility - never installed, still carrying its original setup guide. Somebody spec'd this for a room that never got built. Now it is ready for the room that will.
