TEMA TELECOMUNICAZIONI SRL
Doorphone AA-514
MAS-AA514-REV03EN
Page 11 of 56
Camera section (only for AA-514C systems)
Sensor
C-MOS color ¼”
Resolution
420 TV lines
System
PAL
Sensitivity
1 Lux
Viewing angle
Wide angle 140°
Gain adjustment
Automatic
White balance
Automatic
Video output
Composite video 1Vp-p 75
Ω
Connector
RCA female
Camera grade of protection
IP67
Telephone section
Current when line is released
< 250µA
Line Impedance
8000
Ω
@ 1KHz
Audio bandwidth
300-3400Hz
Impedance during RING
> 40000
Ω
@ 200..4300Hz, > 5000
Ω
@12..16KHz
RING sensibility
10Vrms @ 25/50Hz
Line voltage / current characteristic
8Vdc @ 20mA
Minimum operating current
line 24Vdc
7.5Vdc @ 15mA @ Line imp. 1200
Ω
line 48Vdc
7.6Vdc @ 18mA @ Line imp. 1200
Ω
Impedance with taken line
According to ETSI ES 203 021
Return loss
According to ETSI ES 203 021, less than -15dBV
Dialing DTMF level
First group -9dBV, second group -11dBV (+/- 2dBV)
DTMF RX sensibility
Better than -30dBV
Dialing tones sensibility
Better than -30dBV