Mectron compact piezo LED Mode D'emploi Et D'entretien page 50

COMPACT PIEZO LED
9.1.4 Specifications of the Tests for the Immunity of the Accessible
Parts of the Casing to the Wireless RF Communications Device
COMPACT PIEZO LED is designed to operate in an electromagnetic environment in which
radiated RF disturbances are under control. The purchaser or operator of COMPACT PIEZO LED
can help prevent electromagnetic interferences by guaranteeing a minimum distance between
the mobile and portable RF communication devices (transmitters) and COMPACT PIEZO LED, as
recommended below, in relation to the maximum output power of the radio communication
devices.
Test
Band
a)
Freq.
(MHz)
(MHz)
385 380 - 390
450 430 - 470
710
745 704 - 787
780
810
870
800 - 960
930
1720
1845
1700 - 1990
1970
2450 2400 - 2750
5420
5500 5100 - 5800
5785
a) For some services, only uplink frequencies are
included.
b) The carrier must be modulated using a square wave
signal with a duty cycle of 50%.
42
Service Modulation
a)
Pulse modula-
TETRA 400
tion
FM
GMRS 460 ± 5 kHz devi-
FRS 460 ation
1 kHz sine
Pulse modula-
LTE band 13,
tion
17
217 Hz
GSM 800/900
TETRA 800 Pulse modula-
iDEN 820 tion
CDMA 850 18 Hz
Band LTE 5
GSM 1800
CDMA 1900
GSM 1900 Pulse modula-
DECT tion
LTE Band 1, 3, 217 Hz
4, 25
UMTS
Bluetooth
WLAN Pulse modula-
802.11 b/g/n tion
RFID 2450 217 Hz
Band lTe 7
Pulse modula-
WLAN
tion
802.11 a/n
217 Hz
Max
power
b)
(W)
1.8
18 Hz
b)
c)
2
0.2
b)
2
b)
2
b)
2
b)
0.2
b)
c) As an alternative to FM modulation, 18 Hz pulse
modulation at 50% can be used because, although it
does not represent true modulation, it represents the
worst case.
Immunity
Distance
test value
(m)
(V/m)
0.3 27
0.3 28
0.3 9
0.3 28
0.3 28
0.3 28
0.3 9