X70 connector details | Bosch Appliances 3.5 manual

2011-02 Installation and User Instructions 5 Call Stations

en 220

18.2.3 Microphone (X70)

The external interface for microphones consists of a pin header connector with 6 positions (see the PCB for the pin numbering). The following microphones were designed to be used in combination with the kit:

•LBB9081 Hand-held Dynamic Microphone (including resistors for switch supervision).

•LBB9082 Gooseneck Dynamic Microphone.

table 18.5: X70 connector details

Pin Signal

1Mic-

2GND

3Mic+

4--- not connected ---

5 PTT input contact

6 GND

10kΩ	blue	5
	blue

10kΩ
	black	6
		6
	red	3
		3
	white	1
		1
	black
	(thick)	2
		2

figure 18.6: LBB9081 connection diagram

red

white

black

figure 18.7: LBB9082 connection diagram

table 18.6: X70 technical data

Microphone input sensitivity: -50 dBV

Input control range: -7 to 8 dB

S/N:

min. 60 dB at default sensitivity Headroom:

min. 30 dB at default sensitivity Bandwidth:

340 to 14000 Hz

(-3 dB with respect to level at 1 kHz)

Bosch Security Systems 2011-02

3.5 specifications

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Bosch Appliances 3.5 manual X70 connector details, Mic+ Not connected PTT input contact

Models: 3.5