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YD/T 1592.1-2012 English 240 Add to Cart 0--15 minutes. Auto immediate delivery. Technical specification and testing methods of electromagnetic compatibility for TD-SCDMA digital cellular moble communications system. Part 1: User equipment and ancillary equipment Valid YD/T 1592.1-2012
Technical specification and testing methods of electromagnetic compatibility for TD-SCDMA digital cellular moble communications system.Part 1. User equipment and ancillary equipment
2GHz TD-SCDMA digital cellular mobile communication system
Electromagnetic compatibility requirements and measurement methods
Technical specification and testing methods of electromagnetic
Compatibility for TD-SCDMA digital cellular mobile
2012-12-28 release.2013-03-0 1 implementation
4.2 Test arrangement
4.3 free frequency band
4.4 Narrowband response of the receiver
4.5 continuous harassment measurement conditions and layout
4.6 Immunity test conditions and arrangements
5.2 You can establish a continuous communication connection EUT
5.3 EUTs for continuous communication connections can not be established.
5.4 Methods for evaluating ancillary equipment
5.5 Classification of EUT
6.2 Performance Criteria A (Persistent)
6.3 Performance Criterion B (Transient)
6.4 Performance Criteria C (Intermittent Phenomenon)
7.1 Harassment measurement
7.2 Immunity test
8 harassment measurement methods and limits
8.1 Antenna port (conductive spurious)
8.2 Chassis port (radiation spurious)
8.3 Auxiliary device chassis port
8.4 telecommunications port
8.5 DC power input and output ports
8.6 AC power input and output ports
8.7 Harmonic current (AC power input port)
8.8 Voltage fluctuation and flicker (AC power input port)
8.9 Transient Conducted Harassment (DC Power Input, Output Port)
9 immunity test method and grade
9.1 Electrostatic Discharge Immunity Test
9.2 Radiation disturbance immunity test (80MHz-2.7GHz)
9.3 Electrical fast transient burst immunity test
9.4 Surge (impact) immunity test
9.5 Radio frequency field sensing conducted disturbance disturbance immunity test
9.6 voltage sags, short interruptions and voltage variations immunity test
9.7 Power frequency magnetic field immunity test
9.8 Transient and Surge Immunity Test (Car Environment)
This part is the << 2GHz TD-SCDMA digital cellular mobile communication system, electromagnetic compatibility requirements and measurement methods
The first part of the standard, which includes the following parts.
Part 2. base stations and their auxiliary equipment
This part replaces the electromagnetic compatibility of YD/T 1592.1-2007 "2GHz TD-SCDMA digital cellular mobile communication system.
Summation method. Part 1. User equipment and its auxiliary equipment ".
This section compares with YD/T 1592.1-2007 as follows.
A) normative reference document, use YD/T 1483 instead of ITU-R SM329.GB/T 17626.29 alternative to IEC
61000-4-29.
B) In chapter 5 of this section, the version number of YD/T 1312 is changed to.2008.
C) Radiation disturbance test for auxiliary equipment The maximum frequency is 6 GHz.
D) Radiation immunity test the highest frequency of 2.7GHz.
E) Change the test level and performance criteria for voltage sags, short interruptions and voltage variation immunity tests.
This part mainly refers to GB 9254 "information technology equipment radio disturbance limits and measurement methods", GB/T 17626
Series of standards, YD/T 1483 "Radio equipment spurious emission technical requirements and measurement methods", ETSI TS 134.124 "Universal shift
"UMTS" electromagnetic compatibility requirements for mobile terminals and their auxiliary equipment ", YD/T 1312.1" wireless communication equipment
Electromagnetic compatibility requirements and methods of measurement Part 1. General requirements "for formulation.
This part of the China Communications Standardization Association proposed and centralized.
This part of the drafting unit. Ministry of Industry and Information Technology Telecommunications Research Institute, ZTE Corporation, Huawei Technologies Limited
Company, Datang Telecom Technology Industry Group.
The main drafters of this part. Liu Bao Dian, Xiao Li, Qu Pengfei, Zhou hammer, Wang Hongwei, Yu Huichun, Chu Yan.
This part replaces YD/T 1592.1-2007 for the first revision.
This part of the provisions of the 2GHz TD-SCDMA digital cellular mobile communication system, the user equipment and auxiliary equipment, electromagnetic
Compatibility (EMC) requirements, including limits, performance criteria, and measurement methods.
This part is applicable to the user equipment and auxiliary equipment of the 2GHz four-SCDMA digital cellular mobile communication system.
GB/T 6113 .104 Radio disturbance and immunity measuring equipment and measuring methods - Part 1-4. Radio
Disturbance and immunity measurement equipment auxiliary equipment radiation harassment
GB 9254 Radio disturbance limits and measurement methods for information technology equipment
GB 17625.1 Low-voltage electrical and electronic equipment issued by the harmonic current limit (equipment per phase input current ≤ 16A)
GB 17625.2 Electromagnetic Compatibility Limits Devices rated at no more than 16A are generated in low voltage power supply systems
Of the voltage fluctuation and flicker
Electromagnetic compatibility - Test and measurement techniques - Electrostatic discharge immunity test GB/T
Electromagnetic compatibility - Test and measurement techniques - Radio frequency electromagnetic field immunity immunity test GB/T
GB/T 17626.4 Electromagnetic compatibility test and measurement techniques Electrical fast transient burst immunity test
GB/T 17626.5 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test
GB/T 17626.6 Electromagnetic compatibility test and measurement techniques Radio frequency field sensing conducted disturbances Immunity
Electromagnetic compatibility (EMC) - Test and measurement techniques - Power frequency magnetic field immunity test GB/T
GB/T 17626.11 Electromagnetic compatibility test and measurement technology Voltage sags, short interruptions and voltage variations Immunity test
GB/T 17626.29 Electromagnetic compatibility test and measurement technology DC power supply input port voltage sag, short interrupt and
Voltage variation immunity test
GB/T 21437.2 Road vehicles - Electrical harassment caused by conduction and coupling - Part 2. Electrical interference along power lines
State conduction
Wireless communication equipment - Electromagnetic compatibility - Requirements and methods of measurement - Part 1. Generic requirements YD/T 1312.1-2008
YD/T 1977 2GHz TD-SCDMA mobile station space radio frequency radiation power and receiver performance measurement method
Technical requirements and measurement methods for spurious emission of radio equipment YD/T 1483
3GPP TS 34.124 General purpose mobile communication system Electromagnetic compatibility requirements and measurement methods Mobile terminals and their auxiliary facilities
The block error rate, the error rate calculation, should be based on the estimation of the cyclic redundancy check for each transport block.
Integral Antenna Equipment
The antenna of this type of equipment does not require external connectors and is part of the equipment. The integrated antenna can be built-in or external.
An entity having a user device capable of accessing a set of general terrestrial wireless access services through one or more wireless interfaces.
When an access service is provided in the wireless service area, the entity may be mobile or fixed, and may simultaneously
Serving one or more users.
Auxiliary equipment Ancillary Equipment
Equipment (device) connected to the receiver, transmitter or transceiver, and the following conditions are met simultaneously.
A) connected to a receiver, transmitter, or transceiver to provide additional operational and/or control characteristics (eg,
Extended to other locations).
B) can not be used independently of the receiver, transmitter or transceiver, otherwise the user function can not be provided separately.
C) the connected receiver, transmitter or transceiver, in the absence of this auxiliary equipment, such as the implementation of such as transceiver
(That is, the auxiliary device is not a subunit of the basic function of the master device).
A UE that is used in a fixed position and powered by an AC power source.
Idle mode idle mode
A mode of operation for a UE receiver or transceiver. In this mode, the device under test (EUT) has been powered up
For service, and to respond to requests for building a call.
A mode of operation for a UE receiver or transceiver. In this mode, the device under test (EUT) has been powered up and not
The line resource controller establishes a communication link.
Spurious emission Spurious EmiSSions
In addition to the carrier frequency and the normal modulation of the band below the discrete frequency of harassment. Can be divided into two kinds of conduction and radiation.
When the alternator is charging current, the rechargeable battery is disconnected from the alternator, and there are still other loads
Connected with the AC power generation circuit.
ARFCN Absolute Radio Frequency Channel Number Absolute Radio Channel Number
BPF Band PaSS Filter Bandpass Filter
BW Band Width Bandwidth
DL Down Link Downlink (base station to user device)
ERP Ear Reference Point
ISN Impedance Stabilization Network
MRP Mouth Reference Point Reference Point
Rms Root Mean Square RMS value
SS System Simulator System Simulator (with source)
TD-SCDMA Time Division-Synchronization Code Division Time Division - Synchronous Code Division Multiple Access
UL Up Link uplink (user equipment to base station)
UTRA Universal Terrestrial Radio AcceSS Universal Terrestrial Wireless Access
The EUT should be tested in a normal test environment. The test conditions should be recorded in the report.
When the EUT has a detachable integrated antenna, unless otherwise specified in this section,
Mounted on the antenna for testing.
The test arrangement should be as close as possible to normal or typical actual operating conditions.
If the EUT is part of the system or connected to the auxiliary equipment, then the EUT shall be connected to the minimum typical
And the ports connected to the auxiliary device should be activated.
In the test work mode and configuration should be accurately recorded in the test report.
If the device has a large number of ports, a sufficient number of ports should be selected to ensure that the actual situation and different types of
Port can be tested.
Before the test, the UE shall be in the maximum power emission state and confirm its maximum total radiated power value. The test method is shown in YD/T
1977, the test results are recorded in the test report.
4.2.1 Transmitter input test arrangement
Through the internal or external signal source to generate the appropriate normal modulation signal into the transmitter input port. External signal source should be
Outside the test environment.
SS should ensure continuous EUT launch.
4.2.2 Transmitter output test arrangement
SS should be placed outside the test environment.
If the EUT contains an external 500 RF antenna port and this port is normally connected via a coaxial cable,
A useful signal for establishing a communication connection should be fed from this port via a coaxial cable.
If the EUT contains an external 500 RF antenna port, this port is usually not connected to the coaxial cable, and the EUT does not
With an external 500 RF antenna port (eg integrated antenna device), a useful signal for establishing a communication connection should pass the test environment
Within the antenna feed.
The effect of the harassment signal on the measuring device should be avoided during the measurement.
4.2.3 Receiver input test arrangement
The frequency of the useful RF input signal providing the communication link is selected by setting the correct UTRA ARFCN, unless the part
The other parts of the sub-section have special provisions, the test should select the working frequency of the center frequency corresponding to the UTRA ARFCN.
Inside the antenna feed.
In the immunity test, the useful RF input signal level for providing the communication link should be higher than the reference sensitivity level of the EUT
40dB. The input signal level should be recorded in the test report.
In harassment measurements, the useful RF input signal level should not exceed the reference sensitivity level of 15 dB. The input signal level should be
Recorded in the test report.
4.2.4, the receiver output test layout
For audio equipment, the audio output of the receiver should be connected to a sound outside the test environment via a nonconductive acoustic tube
True analyzer or other similar measuring instruments. For other cases where nonconductive acoustic tubes can not be used, other methods may be used
The output of the receiver is connected to an audio distortion analyzer or other similar measuring instrument and should be recorded in the test report.
For non-voice devices, the output signal of the receiver should be connected by non-conductive method to the test environment located outside the test environment
Prepared. If the receiver has a receiver output connector or port, connect the cable as the EUT's normal operation,
Connect to a test device located outside the test environment.
Measures should be taken to minimize the effect of coupling on the test results.
The free frequency band is the frequency band that does not carry out the radiation immunity test.
The auxiliary equipment does not have a free frequency band.
4.3.1 Disposable frequency band of the receiver
The low frequency of the free spectrum is the low frequency of the EUT receive band minus 85MHz.
The high frequency of the free frequency band is the high frequency of the EUT receive band plus 85MHz.
4.3.2 Transmitter's free frequency band
The transmitter's frequency band is the transmitter operating frequency ± 4MHz.
The narrowband response generated by the receiver and the transceiver during the discrete frequency test is determined by the following method.
In the immunity test, the BLER and voice output signal levels should be monitored. Narrowband response and broadband phenomena can be caused
BLER or voice output signal level increase. In this case, further judgment is required.
Set the test frequency to ± 3.2MHz and repeat the test. If the BLER or voice output signal level is out of tolerance in a single case
End or double-ended disappearance, which is narrowband response.
If the BLER or voice output signal level does not disappear, it may be caused by another harassment signal
Narrowband response.
In this case, bias the test frequency by ± 4MHz and repeat the test.
If the BLER or voice output signal level increase in the situation at either end has not disappeared, it is considered a broadband phenomenon. which is
EUT did not pass the test.
Narrowband response should be ignored.
Measurements should be made in the mode of maximum harassment when the EUT is operating normally.
The maximum continuous harassment of the detected radiation should be achieved, for example by moving the EUT cable or the like.
As shown in Fig. 1, when the radiation continuous disturbance measurement is performed, the communication connection is established by the SS so that the transmission power of the EUT
The maximum, through the EMC test system on the EUT radiation continuous disturbance signal measurement.
Figure 1 Radiation continuous harassment measurement layout
4.6.1 The immunity test shall be carried out in two operating modes.
A) business model;
B) Idle mode.
4.6.2 When the EUT is an analog voice or audio signal transmission mode, the test arrangement shall be carried out according to the following conditions.
4.6.2.1 Audio calibration
A) The EUT establishes a communication connection with the SS.
B) The EUT should be in normal operating condition and set the volume of the EUT to the normal audio level specified by the manufacturer. in case
Without this rule, the EUT volume should be set to the middle value.
C) Before the test, the reference level of the downlink and uplink voice output signals should be calibrated, as shown in Figure 2.
For the downlink, the reference level of the speech output signal is equivalent to 0 dBPa at 1 kHz at the ERP, for the uplink,
The reference level of the voice output signal is equivalent to -5 dBPa at 1 kHz at MRP.
D) During the calibration process, the EUT's voice processor typically uses noise and echo cancellation algorithms, which attempt to
Eliminate or weaken the steady-state audio signal, such as 1kHz calibration signal. These algorithms should be disabled during the calibration process
Requires special test software. If these algorithms can not be disabled, the audio analyzer should use the maximum retained detection method
Reference level so that the reference level can be measured before the noise and echo cancellation algorithms take effect.
E) For devices that use an external loudspeaker in handsfree. The sound pressure of the external loudspeaker is usually higher than that of the user's device
High sound pressure, which can overcome the surrounding high noise level. The downstream reference voltage should be increased to compensate for the above differences. The other side
The case is to adjust the distance between the loudspeaker and the test microphone in accordance with the manufacturer's specifications during the measurement. Note that must not exceed
Test the dynamic range of the instrument. Normally the upstream reference level does not need to be adjusted. In the case of the above-mentioned calibration
(Such as a PC card with a headset) The manufacturer should specify the distance between the MRP and the microphone.
Note. When the uplink is calibrated, the EUT is in the icon position; there is no EUT when the downlink is calibrated.
Figure 2 Audio calibration layout
4.6.2.2 Audio measurement
A) When monitoring the EUT's voice output level, the EUT should be configured for voice applications if noise and echo cancellation
The algorithm is not disabled and the speech output level should be measured using the maximum peak hold detection method of the audio analyzer as shown in Figure 3.
B) The level of the EUT downlink voice channel output signal at the ERP should be evaluated by measuring the SPL,
When the external loudspeaker, the acoustic coupler should be installed on the loudspeaker used for calibration, as shown in Figure 3.
C) The decoded signal level of the EUT uplink voice channel output should be measured at the analog output of the SS. Immunity test
Should make EUT
Of the microphone to pick up the external background noise to a minimum.
Note. If the EUT does not contain an analog voice circuit, it is evaluated without the voice signal level.
Figure 3 audio measurement chart
4.6.3 When the EUT is in the data transfer mode, the test arrangement shall be carried out under the following conditions.
A) The EUT establishes a link with the data test system simulator and maintains the data transfer status.
B) EUT is in the normal data transmission state, the manufacturer should provide the method of calculating the bit error rate.
C) Monitor the BLER of the EUT.
D) The test arrangement of the EUT without the data application auxiliary device is shown in Fig. 4,
The test arrangement is shown in Figure 5.
Figure 4 Test arrangement without auxiliary equipment for data application
Figure 5 Test arrangement with data application aids
See 5.1 of YD/T 1312.1-2008.
YD/T 1312.1-2008 5.1 mentioned in the receiver before the demodulator of the IF filter bandwidth related content discomfort
Used for wireless devices within this section.
With the YD/T 1312.1-2008 5.2.
5.3 EUTs for continuous communication connections can not be established
5.3 with YD/T 1312.1-2008.
With 5.4% of YD/T 1312.1-2008.
The auxiliary equipment connected to the EUT shall be tested. If the auxiliary equipment should be used in conjunction with the UE, then the auxiliary equipment
It should be combined with the UE test.
With 5.3% of YD/T 1312.1-2008.
The EUT shall comply with the minimum performance criteria specified in 6.2 and 6.3 below.
The communication connection should be evaluated by an indicator, which may be part of the SS or EUT.
In the case of immunity tests for ancillary equipment, if there is no separate pass or fail criteria,
The transmitter, the receiver, or the transmitter/transmitter are connected together to determine whether the auxiliary device passes or does not pass.
The use of vehicle power supply field, but also to meet the provisions of this part of the vehicle UE.
The use of AC power supply of the UE, should also meet the provisions of this part of the fixed station.
During the test, a well should be established to maintain a communication connection.
When the EUT performs data transfer mode, the BLER does not exceed 0.01 during the test.
EUT When the call mode is on the EUT, when measured by an audio BPF with a CF of 1 kHz and BW of.200 Hz
, The upstream and downstream voice output levels should be at least 35 dB lower than the recorded reference level.
Note. When the background noise is high, the filter bandwidth can be reduced to a minimum of 40 Hz.
After the test, the EUT should work normally without loss of user control function or loss of stored data, and keep the communication
connection. In addition to the above-mentioned performance in the communication process, should also be carried out in the idle mode test, the test process is not the transmitter
Should be misplaced.
If the EUT is a simple transmitter, the test should also be carried out in idle mode, EUT should not be in the course of the test
During the test, a communication connection should be established and maintained.
After the test, EUT should be able to work properly, no user perceived communication quality degradation, no user control function loss
Or the loss of stored data, and to maintain a communication connection.
In addition to confirming the above performance during communication, the test should also be carried out in idle mode and the transmitter should not malfunction.
In the test, the performance can be degraded, the function can be lost; the EUT transmitter should not generate unconsciousness in the idle state
After the test, the function can be restored by the operator, after recovery, the performance is not degraded, EUT can run normally.
Harassment measurement items in Table 1.
Table 1 harassment measurement items
Measure the applicable port for the project
UE and its auxiliary equipment in this section
Reference section fixed car portable
Conductive Spurious Transmitter Antenna Port Applicable Applicable 8.1
Radiation Spurious Transmitter Chassis Port Applicable Applicable 8.2
Auxiliary equipment for the chassis port applicable to the applicable 8.3
Applicable to applicable telecommunications port 8.4
DC power input and output ports Applicable Not applicable 8.5
AC power input, output port Applicable Not applicable Not applicable 8.6
Harmonic current AC power input Applicable Not applicable Not applicable 8.7
Voltage fluctuation and flicker AX power input port Applicable Not applicable Not applicable 8.8
Transient conducted harassment (car
DC power input, output port Applicable Not applicable 8.9
The immunity test items are shown in Table 2.
Table 2 Immunity test items
Test project applicable port
Electrostatic discharge chassis port Applicable to applicable 9.1
Radiation harassment Chassis port Applicable Applicable 9.2
Fast transient pulse
Signal/telecommunications/control port,
DC and AC power ports
Not applicable 9.3
Surge (impact)
AC power and DC power input
Not applicable 9.4
RF field induction conduction
DC, AC power input port
Applicable Not applicable 9.5
Voltage change, voltage temporarily
Down and timely interruption
AC, DC power input port Applicable Not applicable Not applicable 9.6
Power frequency magnetic field immunity Chassis port applicable Applicable 9.7
Transient and Surge (Car DC Power Input Port Not Applicable Not Applicable 9.8
The measurement method of this project is carried out according to the relevant contents of YD/T 1483.
The integrated antenna port does not need to be tested for this project.
The working frequency of the EUT should be excluded from the measuring range. EUT should be full power transmission, with the antenna port connected to the measurement
The impedance of the device should be 50Ω.
Measure the upper limit frequency for the maximum operating frequency of 10 harmonics, but not higher than 40GHz.
The measurement bandwidth is shown in Table 3. The measurement limits are shown in Table 4.
Table 3 Measure the bandwidth table
Frequency range resolution bandwidth
9kHz-150kHz 1kHz
150kHz-30MHz 10kHz
30MHz-1GHz 100kHz
≥1GHz 1MHz
Note. The video bandwidth should be at least three times the resolution bandwidth
Table 4 Conducting stray limits
Frequency range limit (peak)
9kHz-1000MHz-36dBm
> 1000MHz -30dBm
Note. in the corresponding frequency band should comply with the relevant provisions of the national radio management
8.2.1 Measurement method
The measurement method of this project is carried out according to the relevant contents of four/T 1483.
In order to avoid near-field interference, the measurement distance of radiation spurious is not less than 3m.
The test site should use the whole anechoic chamber, the site performance to meet the requirements of GB/T 6113.104.
The EUT uses the normal supply voltage to allow the EUT to function properly.
EUT placed in the non-conductive bracket, the power supply should be through the RF filter and then connected with the EUT, so as not to power and cable
Affect the measurement results.
If the EUT is a non-integrated antenna, the antenna port should terminate the 50Ω matching load.
The EUT should be fully powered.
The radiated spurious of the chassis measures the peak output power level of the wireless signal at the chassis port, and the radiation is useful for the corresponding information
The signal is excluded from this measurement.
The influence of useful signal overload on the measuring equipment should be prevented during the measurement.
Bandwidth selection in Table 3.
8.2.2 limits
8.2.2.1 Business model
Table 5 Spurious radiation limits for chassis ports
30MHz-1GHz-36dBm
1GHz-12.75GHz -30dBm
Fc-4MHz
Note. fc is the center frequency of the EUT operating frequency band
8.2.2.2 Idle mode
Limit values are shown in Table 6.
Table 6 Chassis Port Spurious Radiation Caution Limits
30MHz-1GHz -57dBm
1GHz-12.75GHz -47dBm
The measured continuous radiation of the radiation should be maximized, for example by moving the EUT cable.
8.3.2 Measurement method
When the auxiliary device is measured with the EUT, the transmitter/transmitter's radiation emission should be ignored, but should be recorded
Measurements should be made in the typical configuration of the auxiliary equipment.
Measurements are made according to GB 9254.
The highest frequency of the test is determined by the maximum frequency fhigh of the internal source of the wireless communication device and its auxiliary equipment, with the highest internal source
The frequency is defined as the highest frequency generated by EUT internal use or work/tuning, as shown in Table 7.
Table 7 Test the determination of the highest frequency
EUT Internal Source Highest Frequency (MHz) Test Highest Frequency (GHz)
Fhigh≤108 1
Fhigh> 1000 6
30MHz-1000MHz measurement by GB 9254, the measurement distance of 10m. 1GHz-6GHz measurement to be full
CISPR 16-1-4 Section 8 requires an all-wave darkroom in accordance with CISPR 16-2-3 Section 7.3 of the test method, pulse
Punch bandwidth of 1MHz, measuring distance of 3m.
1GHz-6GHz measurement should be used with the average and peak detector spectrum analyzer (or receiver), EUT
Should meet both the mean and peak limits in Table 14, and if the test results under the peak detector are full
Foot average value of the requirements, that EUT meet the above two limits of the requirements, you do not have to use the average detector
8.3.3 Limits
The limits are shown in Table 8 and Table 9.
Table 8 Radiation Continuous Harassment Limits (30 MHz to 1 GHz)
Frequency range MHz quasi peak dB (μV/m)
30-230 30
230-1000 37
Note 1. Lower limits should be used at the transition frequency (230Mfz).
Note 2. Additional measures may be taken when environmental disturbances occur
Table 9 Radiation Continuous Harassment Limit (1GHz-6GHz)
1-3 50 70
3-6 54 74
Note. A lower limit should be used at the frequency (3GHz).
When additional environmental interference occurs, additional measures may be taken
8.4.1 Measurement method
8.4.2 Limits
The limit is shown in Table 10.
Table 10 Telecommunications Port Conduction Continuous Harassment Limits
DBμA
Average quasi - peak mean quasi - peak
0.15-0.5 74-64 84-74 30-20 40-30
0.5-30 64 74 20 30
Note 1. Within 0.15 MHz to 0.5 MHz, the limit decreases linearly with the logarithm of the frequency.
Note 2. The current limit is measured at ISN with a 150Ω impedance. The transform factor is. 20lg150/1 = 44dB
8.5.1 Measurement method
When using quasi-peak detection, the results meet the average limit, that the device meets the requirements of two limits, do not have to
And then averaged detection.
The DC output port should be connected to the load of the rated current of the extraction power supply via AMN.
The measurement receiver is connected to each measurement port on the M side in turn to record the continuous disturbance level. Not measured
AMN measurement port should be terminated 50Ω load. The reference ground of the AMN is applied as short as possible with the reference ground plate
The measuring receiver shall comply with the requirements in GB/T 6113.1 02.
The limits are shown in Table 11.
Table 11 DC Power Port Conduction Continuous Harassment Limit
Limit dBμV
Average quasi - peak
0.15-0.5 56-46 66-56
0.5-5 46 56
5-30 50 60
Note 1. Lower limits should be used at the transition frequency (0.50 MHz and 5 MHz).
Note 2. The limit is linearly decreasing with the logarithm of the frequency in the frequency range of 0.15 MHz to 0.50 MHZ
8.6.1 Measurement method
The measurement is carried out according to GB 9254 and the AMN is connected to the AC power supply.
8.6.2 Limits
EUT's conducted harassment limits, see Table 12.
Table 12 AC power port conduction harassment limits
8.7.1 Measurement method
Measurements are carried out according to GB 17625.1.
8.7.2 limits
The use of GB 17625.1 Class A equipment limits.
8.8.1 Measurement method
Measurements are carried out according to GB 17625.2.
8.8.2 Eye value
Using the corresponding limits in GB 17625.2.
8.9.1 Measurement method
The test is carried out according to GB/T 21437.2.
8.9.2 limit
EUT transient transmission disturbance limits, see Table 13.
Table 13 DC Power Port Transient Conducted Harassment
Pulse polarity limit
12V system 24V system
Positive electrode 75 150
Negative pole -100 -450
9.1.1 Test methods and grades
The test was carried out in accordance with OB/T 17626.2.
A) For contact discharge, the EUT shall pass a ± 2 kV, ± 4 kV test grade.
B) For air discharge, the EUT shall pass a test grade of ± 2 kV, ± 4 kV, ± 8 kV.
The performance criterion B of this Section 6.3 applies to these Terms.
9.2 Radiated Disturbance Immunity Test (80 MHz - 2.7 GHz)
9.2.1 Test methods and grades
The test shall be carried out in accordance with GB/T 17626.3 and shall meet the following requirements.
A) The test shall be carried out in the frequency range 80 MHz - 2 .70 Hz.
B) The test grade is shown in Table 14.
Table 14 Radiation Disturbance Immunity Test Level
Frequency range MHz Test level V/m
80-2700 3
C) The source of the disturbance is subjected to an amplitude modulation of 80% with an audio signal of 1 kHz.
D) The frequency sweep step in the 80 MHz range is not greater than 1% of the previous frequency, 1 GHz to 2.7 GHz band frequency
The rate scanning step is not greater than 0.5% of the previous frequency.
If the receiver or part of the transceiver as a receiver at a discrete frequency point is a narrowband response, then the ring
The frequency of the narrowband response should be recorded in the test report.
9.2.2 Performance Criteria
The Performance Criteria A of Part 6.2 apply to these Terms.
9.3.1 Test methods and grades
AC power supply port/signal/communication/control port and DC power port connection cable for fixed station and its auxiliary equipment
This test item can be used for 3m.
The test shall be carried out in accordance with GB/T 17626.4 and shall meet the following requirements.
A) The test level of the signal/communication/control port is an open circuit voltage of 0.5 kV.
B) The test level of the DC power input port is open circuit voltage 1kV.
C) The test level of the AC power input port is open circuit voltage 1kV.
9.3.2 Performance criteria
9.4.1 Test methods and grades
The test is carried out according to GB/T 17626.5. The following requirements should also be met.
A) For the AC power port test level should be 2kV (line to ground), 1kV (line to line);
B) For telecommunications ports connected directly to an outdoor cable, the test level shall be 1 kV (wire-to-ground), but if the EUT is
The test level of the telecentre equipment shall be 0.5 kV (wire-to-ground); for cables connected to the indoor cable and connected to a cable length greater than 10 m
Of the telecommunications port, th......