Описание товара
Подробности
- Shielded fully metal housing for under table mounting
- Mounting holes mechanically decoupled from housing to minimise acoustic coupling
- Use as chairman or delegate microphone unit possible
- Gooseneck microphone with non-glare Nextel® coating and quick-plug connection through the table (supplied with pop screen)
- Illuminated ring around the gooseneck indicates the ready-to-talk status
- Cover ring for mounting through table at the gooseneck position (aluminium coloured anodized)
- Connection for up to 3 external buttons (microphone, priority and clear)
- Connection for external LEDs such as microphone on (green) and request-to-talk (red)
- DIP-switches to address and programme the microphone unit
- Fixed connecting cable (3 m long) with 15-pin Sub-D-plug
- 15-pin Sub-D-socket for system connecting cable
- Connection for loudspeaker
Дополнительная информация
Характеристики:
- Power supply: +24 V via microphone line
- Power consumption: max. 74 mA
- AF-frequency response: 80 Hz to 19,000 Hz
- T.H.D: ≤ 1%
- Signal-to-noise ratio with microphone: 59 dB related to 1 Pa
- AF-Output (+6 dB): balanced, microphone line
- Limiter: compensates variations in speaking distance, cannot be switched off
- 6 DIP-switches (No. 1 to 5): Address of the microphone units (Binary code)
- DIP-switch No. 6.: no function
Connections
- 1 x 3 m long cable with 15-pin Sub-D plug, microphone line, on request the cable can be supplied individually and in special lengths
- 1 x 15-pin Sub-D socket, microphone line1 x jack socket for gooseneck microphone with LED ring
Removable terminal board with 12 connections for
- Priority button
- Microphone button
- Clear button
- LED indication “Microphone on” (green) 24 V / 20 mA without drop resistance
- LED indication “Request-to-Speak” (red) 24 V / 20 mA without drop resistance
- loudspeaker
Dimensions
- Length: 203 mm
- Width: 97 mm
- Height: 47 mm
- Weight (with microphone and connecting cable): 868 g
- Ambient temperature: 0° to +50°C
Optional:
- Piezo button with dual colour LED ring (Order # 546.658)
- Piezo button with “Clear” description (Order # 546.674)
- Piezo button with “Priority” description (Order # 546.666)
Microphone
- Transducer type: Condenser (back electret)
- Operating principle: Pressure gradient
- Polar pattern: Cardioid
- Frequency response: 100 Hz to 19,000 Hz
- Open circuit voltage: 20 mV / Pa
- Nominal impedance: ≤ 1.5 kΩ
- Nominal output impedance: ≥ 8 kΩ
- Max. SPL, f = 1 kHz, k ≤ 1%,
- RL = 8 kΩ: 120 dB
- Noise voltage: 20 Vs
- Signal-to-noise ratio related to 1 Pa: 60 dB
- A-weighted equivalent SPL: 26 dB
- Connection: unbalanced with quickplug connection ø 7.2
- Supply voltage: 10 V with drop resistance 10 kΩ
- Power consumption: 400 A
Кольцо подсветки
- Supply voltage: 24 V,drop resistance 3.3 kΩ
- Power consumption: 20 mA
- Доина: 400 mm
- Диаметр головки: 13.5 mm
- Диаметр микрофона: 8 mm
- Разъем микрофона: M 13 x 1 external thread
- Веc: 174 g
- Цвет: Nextel®, кирпично серый (B 2)