Grandstream Networks GXW4232 User manual

www.ecmg-global.net
EMI TEST REPORT
On Model Name: VoIP Gateway
Model Number: GXW4232, GXW4224
Brand Name: Grandstream
Prepared for Grandstream Networks, INC
FCC ID Number: YZZGXW42XX
According to FCC 47 CFR Part 15(2012), Subpart B
Test Report #: SHE-1205-10825-FCC
Tested by: Galanz
Daomen /Engineer Company Name
Reviewed by: ECMG
Jawen Yin/ Senior Engineer Company Name
QC Manager: ECMG
Swall Zhang/QC Manager Company Name
Test Report Released by: November 23rd, 2012
⎯⎯⎯⎯⎯⎯⎯ ⎯⎯⎯⎯⎯⎯⎯
Swall Zhang Date

Test Location
Tests performed in a Certified ANSI Semi-Anechoic Chamber and
Shielded Room.
Test Site Location : Galanz
25 South Ronggui Rd.,Shunde,
Foshan,Guangdong, China
Tel : [phone]
Fax : [phone]
Test Facility
The test facility was recognized, certified, or accredited by the
following organizations:
zCNAL – LAB Code: L2244
Galanz EMC Laboratory has been assessed and in compliance with
CNAL/AC01:2002 accreditation criteria for testing laboratories
(identical to ISO/IEC 17025:2005 General Requirements)for the
Competence of Testing Laboratories.
zFCC – Registration No.: 580210
Galanz EMC Laboratory has been registered and fully described in a
report filed with the (FCC) Federal Communications Commission. The
acceptance letter from the FCC was maintained in our files.

Table of Contents
GOVERNMENT DISCLAIMER NOTICE ____________________________________________ 2
REPRODUCTION CLAUSE _______________________________________________________ 2
OPINIONS AND INTERPRETATIONS _____________________________________________ 2
STATEMENT OF MEASUREMENT UNCERTAINTY _________________________________ 2
ADMINISTRATIVE DATA ________________________________________________________ 3
EUT DESCRIPTION ______________________________________________________________ 4
EUT MODEL DERIVED___________________________________________________________ 5
TEST SUMMARY ________________________________________________________________ 8
TEST MODE JUSTIFICATION ____________________________________________________ 7
EUT EXERCISE SOFTWARE ______________________________________________________ 7
EQUIPMENT MODIFICATION ____________________________________________________ 7
EUT SAMPLE PHOTOS FOR MODEL GXW4232 ___________________________________ 9
TEST SYSTEM DETAILS ________________________________________________________ 15
ATTACHMENT 1 - CONDUCTED EMISSION TEST RESULTS ______________________ 18
ATTACHMENT 2 – RADIATED EMISSION MEASUREMENT _______________________ 22

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 1 of 31
List Attached Files
Exhibit Type File Description File Name
Test Report Test Report YZZGXW42XX _Test report.pdf
Operation Description Technical Description YZZGXW42XX_operation description.pdf
External Photos External Photos YZZGXW42XX_External Photos
Internal Photos Internal Photos YZZGXW42XX_Internal Photos
Block Diagram Block Diagram YZZGXW42XX_Block Diagram.pdf
Schematics Circuit Diagram YZZGXW42XX _Schematics.pdf
ID Label/Location Label and Location YZZGXW42XX _Label & Location.pdf
User Manual User Manual YZZGXW42XX _User Manual.pdf
Test set-up photos Test set-up photos YZZGXW42XX _Test Set-up Photos

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 2 of 31
Government Disclaimer Notice
When government drawing, specification, or other data are used for
any purpose other than in connection with a definitely related
government procurement operation, the United States Government
thereby incurs no responsibility nor any obligation whatsoever; and
the fact that the Government may have formulated, furnished, or in
any way supplied the said drawing, specifications, or other data, is not
to be regarded by implication or otherwise in any manner licensing the
holder or any other person or corporation, or conveying any rights or
permission to manufacture, use, or sell patented invention that may in
any way be related thereto.This report must not be used to claim
product endorsement by NVLAP or any agency of the U.S. Government.
Reproduction Clause
Any reproduction of this document must be done in full. No single part
of this document may be reproduced without permission from ECMG
Electronic Technical Testing Corp (Shenzhen).
Opinions and Interpretations
This test report relates to the abovementioned equipment under test
(EUT).Without the permission of ECMG Electronic Technical Testing
Corp (Shenzhen) Test Lab this test report is not permitted to be
duplicated in extracts. This test report does not entitle to carry any
test mark on this or similar products. The manufacturer has sole
responsibility of continued compliance of the device.
Statement of Measurement Uncertainty
The data and results referenced in the document are true and
accurate. The reader is cautioned that there may be errors within the
calibration limits of the equipment and facilities that can account for a
nominal measurement error. Furthermore, component and process
variability of devices similar to that tested may result in additional
deviation.

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 3 of 31
Administrative Data
Test Sample : VoIP Gateway
Model Numbers : GXW4232, GXW4224
Model Tested : GXW4232
Receipt Date : June 10th, 2012
Date Tested : June 11th to 21st, 2012
Applicant : Grandstream Networks, INC
Address 5F, Bldg #1, No.2 Kefa Rd., Science &
Technology Park, Shenzhen, China
Telephone : [phone]
Fax : [phone]
Manufacturer : Grandstream Networks, INC
Address 5F, Bldg #1, No.2 Kefa Rd., Science &
Technology Park, Shenzhen, China
Telephone : [phone]
Fax : [phone]
Factory : Grandstream Networks, INC
Address 5F, Bldg #1, No.2 Kefa Rd., Science &
Technology Park, Shenzhen, China
Telephone : [phone]
Fax : [phone]

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 4 of 31
EUT Description
Grandstream Networks, INC., model tested GXW4232 (referred to as
the EUT in this report) is an VoIP Gateway.
Technical specifications of the EUT are as belows:
Parameter Range
Rated voltage 12VDC
Basic
parameters Rated Current 5A
Ethernet Port Connect to the internal LAN network,router or PC.
RESET Factory Reset button. Press for 7 seconds to reset factory
default settings.
DC 12V Power adapter connection
Analog Ports Connect to analog phones / fax machines with an RJ21 to
RJ11 cable
I/O Ports
FXS Ports FXS port to be connected to analog phones / fax machines.
Input 100-240VAC 50/60Hz 1.3A
Output 12VDC,5A
Model SKF1200500X1BA
Power
Adapter
Brand name Mass
NOTE: For more detailed informations or features please refer to
user’s manual of EUT.

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 5 of 31
EUT Model Derived
Models GXW4232 and GXW4224 are a series of product,they have the
same circuit principle&PCB layout, differences between these two
models are as belows:
Item Differences GXW4224 GXW4232
1 Telecom
Connector Removed Mounted
2 Dupont Lines 2*8PIN 2*16PIN
3 Components Removed Mounted
4 RJ11
Connector Removed Mounted
Note:Pre-scan has been conducted to determine the worst-case between
these two models,model GXW4232 was selected for the final testing.

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 6 of 31
Model number: GXW4224
Model number: GXW4232

FCC Test Report #: SHE-1205-10825-FCC
Prepared for Grandstream Networks, INC
Prepared by ECMG Electronic Technical Testing Corp (Shenzhen) Page 7 of 31
Test Mode Justification
The EUT shall be configured and operated in a manner which tends to
maximize its emission characteristics in a typical application.Connect
ed to PC mode was selected for the final testing as described belows:
Connected to PC:
Connected a notebook PC to Ethernet port of the EUT by an RJ-45 cable
and ping “192. 168.0.160 –t” to EUT, also connected two analog phone
s to any two FXS ports and established a call link between them and
measeured it.
EUT Exercise Software
No test sofware support this test.
Equipment Modification
Any modifications installed previous to testing by Grandstream Netwo
rks, INC., will be incorporated in each production model sold or leased
in United States.
There were no modifications installed by ECMG Electronic Technical
Testing Corp (Shenzhen). test personnel.