TOA Electronics Infrared Transceiver (for ceilings 8'-15') - TS-905
TOA Electronics Infrared Transceiver (for ceilings 8'-15') - TS-905 is backordered and will ship as soon as it is back in stock.
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Product Overview
The TOA TS-905 is an infrared conference transceiver for rooms with standard ceilings from roughly 8 to 15 feet (2.5–4.5 m). It relays audio and control signals between the TOA Infrared Conference System central unit and the cordless chairperson and delegate units, keeping the conference room free of cabling. The cordless design makes the unit fast to install, relocate, or remove, with mounting to a ceiling, wall, or microphone stand. It is a core component for boardrooms, training rooms, and multi-purpose spaces using an infrared conference microphone system.
Product Description
The TS-905 transmits four audio carrier channels plus a control channel and receives base and translation language channels, supporting multilingual meetings within the TOA infrared conference platform. A wide 150° vertical and 360° horizontal field covers approximately a 6–7 m radius beneath the unit at the rated ceiling height, suiting typical meeting-room heights. A single BNC connection links the transceiver to the central unit, and a power LED confirms operation. Because the system uses infrared rather than RF, audio stays inside the room for confidential discussions and avoids wireless microphone congestion. The unit is powered at 24 V DC from the central unit, so no local supply is needed at the mounting point. Supplied brackets cover ceiling, wall, and microphone-stand installation, with a thread adapter included for stand mounting. For high ceilings of 16–23 feet, choose the TOA TS-907 transceiver, or browse the full TOA infrared conference range at Creation Networks.

Key Features
- Standard-ceiling coverage — Optimized for 8–15 ft ceilings common in meeting rooms.
- Cordless infrared design — Removes floor cabling for fast installation and a clean room.
- Wide 150° vertical field — Broad coverage from a single ceiling position.
- Four audio channels plus control — Carries multiple language and control signals for multilingual meetings.
- 360° horizontal coverage — Serves seats arranged around the table.
- Flexible mounting — Attaches to ceiling, wall, or microphone stand with included brackets.
- Central-unit powered — Operates on 24 V DC over the BNC cable, with no local outlet needed.
Typical Applications
- Boardroom
- Conference room
- Training room
- Government space
- Multi-purpose room
Technical Specifications
| Power Source | 24 V DC (supplied from the central unit) |
|---|---|
| Current Consumption | Max. 150 mA |
| Wavelength | 870 nm (AM: brightness modulation) |
| Modulation Method | Frequency modulation |
| Carrier Frequency (Transmit) | Audio ch.1 7.35 MHz, ch.2 8.10 MHz, ch.3 8.55 MHz, ch.4 9.15 MHz; control 6.45 MHz |
| Carrier Frequency (Receive) | Base language 1.95 MHz; translation language 2.25 MHz |
| Acceptable Angle | Vertical 150° (75° + 75°), Horizontal 360° |
| Emission Angle | Vertical 150° (75° + 75°), Horizontal 360° |
| Communication Area | Approx. 6–7 m radius below unit (ceiling height 2.5–4.5 m / 8.2–14.76 ft) |
| Connection Terminal | BNC jack |
| LED Indicator | Power |
| Operating Temperature | 0 °C to +40 °C (32 °F to 104 °F) |
| Operating Humidity | 90 %RH or less (no condensation) |
| Finish | Dome: PC resin, visible-light-cut filter; Base: ABS resin, black |
| Dimensions | Ø120 × 71.3 (H) mm (4.72 × 2.81 in) |
| Weight | 230 g (0.51 lb), unit only |
| Included Accessories | Mounting bracket ×1, stand mounting bracket ×1, attaching screws ×3, thread adapter (U5/16–NS5/8) ×1 |
Frequently Asked Questions
What ceiling height does the TS-905 support? It is designed for standard ceilings of approximately 8–15 ft (2.5–4.5 m), covering about a 6–7 m radius beneath the unit.
Which system is it compatible with? The TS-905 serves as the transmitter/receiver for the TOA Infrared Conference System, connecting to the central unit via BNC.
How is it installed and integrated? Mount it to a ceiling, wall, or microphone stand with the supplied brackets and run a single BNC cable to the central unit; it is powered over that connection at 24 V DC.
What if my ceiling is higher than 15 feet? For 16–23 ft ceilings, use the TOA TS-907 transceiver instead for reliable coverage.
Does infrared offer security advantages? Yes. Infrared signals stay within the room and do not pass through walls, supporting confidential meetings and avoiding RF interference.
What warranty and support apply? The unit carries the TOA manufacturer warranty; contact Creation Networks for warranty, lead time, and AV integration support.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
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From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
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