Accessories and Adapters Approved Devices / Approved Accessories
60
4.4 Approved Devices / Approved Accessories
Please note: Only the following, recommended accessories may be con-
nected to the audio adapter. The cable to the door display
must not be run outdoors.
Electrical Data of Ports
Port Connection Values
Microphone,
microphone of second handset,
headset microphone
Electret microphone
Typical sensitivity: 10 mV/Pa
Power feed: I < 300µA at 1.5V
Ear cap,
loudspeaker of second handset,
headset, headset loudspeaker
Typical impedance: 150 ± 30 ohms
Typical sensitivity: 94 dB/1 mW
(0 dB = 20 µPa)
Active speaker Max. output voltage: 1 V
rms
at input impedance > 10 kohms
Recording device audio input Typical input sensitivity: 0.24 mV
(microphone level)
Recording device start/stop
(relay contact 1)
Max. switching voltage:
50 VDC/29 V AC
Max. switching current: 1 ADC/0.7 A AC
Door display
(relay contact 2)
Max. switching voltage: 50 VDC/29 V
AC
Max. switching current: 1 ADC/0.7 A AC
The following devices are recommended:
Type Manufacturer, Product Designation
Headset: GN-Netcom, Profile binaural
(1869-00-03)
GN-Netcom, Profile 3-in-1 (1866-00-04)
Headset adapter cable: GN Netcom, QD cable (quick coupling),
smooth, Mod 4 (8800-00-01)
Second handset Siemens, L30351-F600-A366
Handset DeTeWe, OpenPhone 60
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