Stylish, low-profile flush-mount discussion units for permanent boardroom installations, with a pluggable gooseneck microphone and a two-colour LED ring. The chairman unit (C) and delegate unit (D) share a touchable interface and an aluminium chassis sized for a 93 × 33 mm tabletop cut-out.
Specifications as per the official Bronx datasheet (2026, Rev. A). Specifications may change without prior notice.
Both units run on the BRONX-LINK digital ring network, carrying 64 channels of lossless 48 kHz audio over a single CAT5e cable in a hand-in-hand loop topology. The chairman unit adds a priority button and a consent button for delegate requests. Compliance: IEC 60914, GBT 15381-94.
The microphone and cable are not included with the units. The SAFM series is paired with the BR-DCU-SAFM-INTSEL channel selector for simultaneous interpretation, the VIC / VOT voting units, the BR-DCU-SAFM-SPK flush speaker, and Bronx PTZ cameras with an auto-tracking switcher.
| Button | Touchable interface |
| Sound pickup | Heart-type capacitance |
| Sensitivity | −46 dBV / Pa |
| Maximum power consumption | 2.0 W |
| Directivity | 0° / 180° > 20 dB (1 kHz) |
| Headphone load / volume / jack | 16 Ω / 10 mW / 3.5 mm stereo |
| Input impedance | 2 kΩ |
| SNR | 70 dB |
| Frequency response | 20 ~ 20000 Hz |
| Equivalent noise | 20 dBA (SPL) |
| Maximum sound pressure | 125 dB (THD < 3%) |
| Main material | Aluminium |
| Weight | 0.6 kg (with microphone) |
| Dimension | 100 L × 40 W × 65 H mm (without microphone) |
| Operating temperature | 0 °C to +55 °C |
| Color | Black |
| Microphone | 1 × pluggable gooseneck microphone base |
| Headphone | 1 × 3.5 mm stereo headphone jack on front |
| Daisy chain | 2 × RJ45 connectors |
| Voting units | RJ11 socket for compatible voting units |
| Discussion units | 3.5 mm socket and RJ11 for compatible discussion units |
| Speaker | 1 × 3.5 mm speaker socket for BR-DCU-SAFM-SPK |
| One unit | 93 × 33 mm |
| Two combined | 193 × 33 mm |
| Three combined | 293 × 33 mm |
| Four combined | 393 × 33 mm |
| Note | Two combined uses 193 × 33 mm or two 93 × 33 mm cut-outs with 41 mm middle distance. Front panel exterior is 100 × 41 mm per unit (101 mm centre-to-centre on multi-unit panels). |
Completely avoids RF interference from cell phones or similar devices.
Zero-loss audio at 48 kHz, 20 Hz – 20 kHz.
Keeps the system working through unit changes or malfunctions.
Avoids duplicate-ID conflicts.
OPEN, OVERRIDE (first in, first out), VOICE and APPLY, with a 1 / 2 / 4 / 6 active-speaker limit and no PC needed.
Close or temporarily mute all other units; consent requests to speak.
Supports simultaneous interpretation through the channel selector.
Works with a Bronx PTZ camera and auto-tracking camera switcher.
Send us your room dimensions — we'll recommend a configuration.