User`s manual

Compliance Certification Services Inc.
Report No：T11112830801-LV
National Differences
Clause Requirement − Test Result – Remark Verdict
Page 38 of 72
example built-in volume level control).
NOTE The values of 94 dBA – 75 mV correspond with
85dBA – 27 mV and 100 dBA – 150 mV.
Zx.4.2 Wired listening devices with digital
input
With any playing device playing the fixed
“programme simulation noise” described in
EN 50332-1 (and respecting the digital
interface standards, where a digital interface
standard exists that specifies the equivalent
acoustic level), the acoustic output LAeq,T of
the listening device shall be ≤ 100 dBA.
This requirement is applicable in any mode
where the headphones can operate, including
any available setting (for example built-in
volume level control, additional sound feature
like equalization, etc.).
NOTE An example of a wired listening device with digital
input is a USB headphone.
N
Zx.4.3 Wireless listening devices
In wireless mode :
- with any playing and transmitting device
playing the fixed programme simulation
noise described in EN 50332-1; and
- respecting the wireless transmission
standards, where an air interface standard
exists that specifies the equivalent acoustic
level; and
- with volume and sound settings in the
listening device (for example built-in volume
level control, additional sound feature like
equalization, etc.) set to the combination of
positions that maximize the measured
acoustic output for the above-mentioned
programme simulation noise, the acoustic
output L
Aeq,T
of the listening device shall be ≤
100 dBA.
NOTE An example of a wireless listening device is a
Bluetooth headphone.
N
Zx.5 Measurement methods
Measurements shall be made in accordance
with EN 50332-1 or EN 50332-2 as
applicable. Unless stated otherwise, the time
interval T shall be 30 s.
NOTE Test method for wireless equipment provided
without listening device should be defined. k
N
2.7.1 Replace the subclause as follows:
Basic requirements
To protect against excessive current, short-
circuits and earth faults in PRIMARY
CIRCUITS, protective devices shall be
included either as integral parts of the
Replaced.
P