HANSONG
汉桑（南京）科技有限公司
HANSONG
（
NANJING
）
TECHNOLOGY CO. , LTD.
[Product Specification] [ 3 / 11]
[2019-12-06]
1
INTRODUCTION
1.1
General Product Description
The “BM240” is an amplifier box for built-in power supply ,It Can play optical source ,
bluetooth source and Aux source music. It includes a left and a right channel for
stereo.There is a pair button and an indication of RGB lights.and a dial switch for selecting a
different EQ .
1.2
Definitions, Acronyms, Symbols and Abbreviations
Abbreviation
Comment
Abbreviation
Comment
CRS
Customer requirements
Specifications
dB
Decibel: Unit of Sound Level
EMC
Electro Magnetic Compatibility
Hz
Hertz: Unit of Frequency
LED
Light Emitting Diode
BSMI
Bureau of Standards, Metrology and
Inspection
N/A
Not Applicable
SASO
Saudi Arabian Standards Organization
Oct
octave
NOM
Norma’s Officials Mexicans
TA
Type Approval
PC
Polycarbonate
TBC
To be confirmed
ABS
Acrylonitrile Butadiene Styrene
TBD
To be defined
POM
Polyoxymethylene
ID
Industrial Design
CE
Conformité Européenne
DV or DVT
Design Verification Test
FCC
Federal Communications Commission
DM or DMT
Design Maturity Test
ODM
Original Design Manufacturer
FM
Frequency Modulation
PSS&L
Product Safety, Security & Liability
RMS
Root Mean Square
50N
50 Newton
PHC
Power Handling Capacity
TR
Trial Run
RH
Relative Humidity
TCMF
Test Case Management File
ESD
Electro Static Discharge
PMPO
Peak Music Power Output
S/N
Signal to Noise Ratio
IEC
Intern. Electro technical Commission
THD
Total Harmonic Distortion
Fo
Resonance Frequency
EUT
Equipment Under Test
TPU
Thermo Plastic Urethane
SoC
Statement of Conformance
SPL
Sound Pressure Level
FR
Flame Retardants
HDMI
High-Definition Multimedia Interface
OEM
Original Equipment Manu fact.
HDCP
High-bandwidth Digital Content Protect.
&
Important remark
CEC
Consumer Electronics Control
FRS
Functional Requirement Specification
Table 1 Definitions
