This standard specifies the types and applications of connectors for interconnection of acoustic system equipment. This standard applies to circular connectors, plugs, sockets and concentric connectors for interconnection of acoustic system equipment. GB/T 14947-1994 Application of connectors for interconnection of acoustic system equipment GB/T14947-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
GB/T14947—1994
Application of connectors for the interconnectionof sound system equipment
Published on March 4, 1994
State Administration of Technical Supervision
Implementation on November 1, 1994
National Standard of the People's Republic of China
Application of connectors for the interconnectionof sound system equipment
GB/T14947—1994
This standard is equivalent to the international standard IEC268-11 "Part 11 of sound system equipment: Application of connectors for the interconnectionof sound system equipment" (Second Edition, 1987).
Subject content and scope of application
This standard specifies the types and applications of connectors for the interconnectionof sound system equipment. This standard applies to circular connectors, plugs, sockets and concentric connectors for the interconnection of sound system equipment. 2 Reference standards
3 General specification for circular connectors for audio equipment
GB5818
GB8898 Safety requirements for household and similar general-purpose electronic and related equipment powered by mains power supply GB/T14197 Preferred matching values ​​for interconnection of sound system equipment SJ262
Two-core and three-core plugs and sockets
SJ2303TX concentric plug socket
SJ3168
3C2 two-core plug socket
3 General requirements
3.1 The electrical and mechanical properties of the connector shall comply with the provisions of GB5818, SJ262, SJ3168 and SJ2303. 3.2 The safety of the connector in application shall comply with the relevant provisions of GB8898. 4
Circular connector
4.1 Types and applications of circular connectors
The types, contact arrangement and application of circular connectors for interconnection of general sound system equipment shall be in accordance with the provisions of Table 1. Table 1
Pin connector matching
Contact number on the surface
Approved by the State Administration of Technical Supervision on March 4, 1994 Connector name and model
Pin connector
Jack connector
Free end YCJ3P
Fixed end YCK3F
Microphone; cable
Microphone input end on equipment
Implementation on November 1, 1994
Pin connector matching
Contact number on the surface
GB/T14947—1994
Continued Table 1
Connection Device name and model
Pin connector
Jack connector
Pin connector
Jack connector
Free end
Fixed end
Free endYC1J7P
Fixed endYC1K7F
Pin connector free endYCJ8P
Jack connector
Pin connector
Jack connector
Pin connector
Jack connector
Fixed endYCK8F
Free end
YC1J5P||tt ||Fixed end
YC1K5F
Free end
Fixed end
Free end
Fixed end
YCK2FK
Fixed end
Record player: Microphone:
Headphone microphone set;
Record player input on the device;
Uploader input on the device;
Tuner input on the device;
Tuner output;
Combined connection for recording and playback unit on the device; Input and output ends of the headphone microphone set on the device Analog audio signal input and output ends of the computer with remote control switch Microphone with remote control
Microphone input terminal with remote control switch on the equipment; Microphone with remote control switch and supply voltage for record-playback-microphone combination connection on the equipment Microphone input terminal with remote control switch and supply voltage on the equipment;
Headphones for record-playback-microphone combination connection on the equipment
Headphone output terminal on the equipment
Speaker; Cable
Speaker box input terminal
Speaker output terminal with internal switch on the equipment Speaker output terminal on the equipment
4.1.2 The types and applications of circular connectors for interconnecting preamplifiers and power amplifiers of household equipment shall be as specified in Table 2. 2
Pin connector mating
Contact number on the surface
GB/T14947—1994
Connector name and model
Free end
Pin connector
Fixed end
Fixed end
Jack connector
Fixed end
Pin connector
Jack connector
Pin connector
Jack connector
Pin connector
Socket connector
Free end
Fixed end
Free end
Fixed end
Free end
Fixed end
130-9IEC-aa
130-9IEC-bb
130-9IEC-cc
130-9IEC-dd
4.1.3 The types and applications of circular connectors for interconnection of on-board equipment shall be as specified in Table 3. Table 3
Pin connector mating
Contact number on the surface
Connector name and model
Pin connector
Jack connector
Pin connector
Jack connector
Free end
Fixed end
Free end
Fixed end
Fixed end
Free end
Preamplifier input terminal on power amplifierPreamplifier connected to the output terminal of the power amplifier
Preamplifier connected to the output terminal of the power amplifier, preamplifier input terminal on the power amplifierCable
Preamplifier connected to the cable Output end of power amplifier; preamplifier input end with remote power switch on power amplifier
Preamplifier connected to output end of power amplifier, preamplifier input end on power amplifier for controlling DC voltage switching power supply
Preamplifier connected to output end of power amplifier Preamplifier input end on power amplifier Cable matching with YCK6P
Power amplifier
Drive device
Cable matching with YCJ6P
Pin connector matching
Contact number on the surface
GB/T14947—1994
Continued Table 3
Connector name and Model
Pin connector
Jack connector
Pin connector
Jack connector
Pin connector
Jack connector
Free end
Fixed end
Free end
Fixed end
2 The matching of pin connector and jack connector is shown in Table 4. 4.2
Pin connector
YC1J5P
130-9IEC-aa
130-9IEC-bb
Jack connector||tt| |YCIK7F
YCIK7F
YC1K5P
YCK2FK
130-9IEC-cc
130-9IEC-dd
Preamplifier connected to the output of the power amplifier Preamplifier input with relay remote power switch on the power amplifier
Preamplifier connected to the output of the power amplifier Preamplifier input with controlled DC voltage switching power supply on the power amplifier
Preamplifier connected to the output of the power amplifier Preamplifier input on the power amplifier
4.3 Connection method
4.3.1 Overview
GB/T14947—1994
The "signal" in the following table should be understood as a connection with a modulated signal, the other end of which is connected to the ground, common or chassis potential. 4.3.2 Requirements related to the working state of the equipment a. A stereo tape recorder that can be used for mono recording should connect contacts 1 and 4 when the switch is turned on for mono recording; when the switch is turned on for mono playback, the same signal should be transmitted to contacts 3 and 5. b. If there is an output signal on contacts 3 and 5 when the tape recorder is recording, and the "tape" input signal on the amplifier connected to the tape recorder produces an output signal for recording on contacts 1 and 4 of the "tape" jack connector, oscillation may occur. In order to prevent the above situation, such a tape recorder should only be connected to an amplifier with a "recording monitoring" input terminal, and the input signal on the amplifier socket does not produce an output signal for recording. c. When connecting contacts 3 and 5 to contacts 1 and 4 respectively through resistors of 500kΩ to 2.2MQ, contacts 3 and 5 can be used as high-impedance input terminals in the recording state. See Appendix A (reference) for examples. This application is also applicable to analog audio signal input/output terminals on computers.
Note: The use of these resistors may cause crosstalk between input terminals. The resistance values ​​selected from the provisions of GB/T14197 have a worst-case crosstalk of -39dB, but if typical values ​​are taken, the crosstalk may not exceed -60dB and can usually be ignored. d. If some contacts are not used, their pins can be cancelled, but the corresponding holes on the insulator of the jack connector should be retained. e. In general, it is best to connect the shell of the plug to the "2" terminal of the connector to ensure that the shield is grounded. However, in special cases, it may be necessary to separate the shield from the ground.
4.3.3 Distribution of connector contacts
a. The distribution of circular connector contacts for interconnection of general sound system equipment shall be as specified in Table 5. b. The distribution of connector contacts for interconnection of preamplifier and power amplifier of household equipment shall be as specified in Table 6. c. The distribution of connector contacts for interconnection of vehicle-mounted equipment shall be as specified in Table 7. 5
Microphone
machine|
tuner
recording-playback
unit
combination
:radio
(tuner
)and
amplifier
recording-playback
unit
combination
connection
:tape
recorder
monaural system
(balanced)
monaural system
(balanced)
AB power supply
monaural system
|(Balanced)
Phantom power
Monaural system
(Unbalanced)
Stereo system
(Balanced)
Stereo system
(Unbalanced)
Monaural system
Stereo system
Monaural system
Stereo system
Monaural system
Stereo system
Connector model
Pin connector Jack connector
YC1J7P
YC1J7P|| tt||YC1K7F
YC1K7F
YC1K7F
YC1K7F
GB/T14947—1994
Signal and power supply
Positive pole of voltage
Signal and power supply
Positive pole of voltage
Left channel signal
Left channel signal
Output signal
(recording)
Left channel output
Signal (recording)
Input signal
(recording)|| tt||Left channel input
Signal (recording)
Shield and power supply
Negative pole of voltage
Screen drum and return
Shield and return
Shield and return
Shield and return
Shield and return
Contact number
Connect to 1
Return line and power supply
Negative pole of voltage
Return line and power supply
Positive pole of voltage
Connect to 1
Right channel
Left channel return
Left channel Signal
Input signal
(Playback)
Left channel
Input signal
(Playback)
Output signal
(Playback)
Left channel output
Signal(Playback)
Right channel
Received to 1
Right channel
Output signal
(Recording)
Received to 1
Right channel input
Received to 3
Right channel
Received to 3
Right channel Signal
Received to 3
Right channel
Input signal
Signal (playback)
Only received in playback position
Received to 3
Right channel Output
Signal recording) Signal (playback)
Remote control switch
Remote control switch
Remote control switch
Remote control switch
Power supply voltage
Power supply voltage
Power supply voltage
Headphones
Sound transmission
Headphones 2
Speaker
Monaural system
Stereo system
For head
Headphones
Monaural system
Stereo system
Low impedance
Connector model
Pin connector Jack connector
YC1J5P
YC1K5F
YCK2FK
GB/T14947—1994
Continued Table 5
Microphone signal
Shielding and return line|| tt||Microphone screen
Shielding and return
Contact number
Headphone
Headphone
Left signal
Connect to 2
Both sides common return
Headphone
Right signal
Connect to 3
Headphone
Right signal
Connect to 4
Right channel return Left channel signal Right channel signal Left channel return
Note: 1) This application is also applicable to analog audio input/output of computers. 6
2) When using the YCK5F type jack connector as the headset receiver socket on the equipment (such as: education), if only one pair of headphones is needed for monitoring, the headphones can be connected to the YCJ5P type pin connector and connected to the headset receiver socket on the equipment. Table 6
Connector model
Pin connector
130-9IEC-aa
130-9IEC-bb
Jack connector
130-9IEC-cc
130-9IEC-dd
Shield and return Right channel signal not connected
Left channel signal
Shield and return Left channel signal not connected Right channel signal shield and return Left channel signal not connected Right channel signal shield and Loop left channel signal is not connected to right channel signal 6
Relay supply relay power supply
Electric voltage
Voltage loop
DC control
Control voltage
Connector model
Pin connector Jack connector
YCJ8P6
See Figure B2
Left rear signal loop and signal
Signal line shielding
GB/T14947—1994
Right rear signal
Left Front signal
return line and signal right rear signal
left rear signal
No. 2)
No. line shield
left rear signal return line and signal
No. 2)
right rear signal
left front signal
No. line shield
Relay supply
voltage
Relay
Relay supply
voltage
Rear signal right front signal
Left front signal
Left rear signal return line and signal| |tt||Signal line shield
Return line and signal
Left front signal
Signal line shield
Left rear signal
Signal 2)
Rear signal
Signal 2)
Auxiliary switch
Right rear signal
Return line and signalWww.bzxZ.net
Left front signal
Signal line shield
(Contact switch)
Note: 1) The outer shield of the connecting cable should be connected to the housing earth through the shield of the plug and socket. 2) These contacts are not connected in the two-channel system. 3) When the plug and socket are connected, this point is connected before the other contacts are connected. 4) In the two-channel amplifier, the line input is connected to contacts 1 and 4 only. Power supply
Return line
DC control
Lighting
Control voltage
(Maximum 0.3A)
DC control
Lighting
Control voltage
(Maximum 0.3A)
Uninterrupted
Lighting
Ground3
DC controlDC control
5) In dual-channel line output, these contacts are connected to the corresponding front channel output points (contacts 1 and 4 are connected to contacts 3 and 5 respectively). 6) See Appendix B (reference), Figure B1.
5 Concentric connectors
5.1 The names of the concentric connectors listed in Table 8 are as follows: 6.3mm concentric connector (2 contacts); a.
6.3mm concentric connector (3 contacts); b.
3.5mm mini concentric connector (2 contacts); c.
3.5mm mini concentric connector (3 contacts); d.
2.5mm ultra-mini concentric connector (2 contacts), e.
Turntable/3.2mm concentric connector (2 contacts). f
5.2 The types and applications of concentric connectors shall be in accordance with the provisions of Table 8. 8
Plug (head) contact number
GB/T14947—1994
Connector name and model
Plug free endCS2-6.3Speaker, headphone; microphone, cable fixed endCK2-6.3
Output terminal of speaker and headphone and input terminal of microphone on equipment
Free endCK2-6.3Cable
Plug free endCS3-6.3
Stereo headphone, cable
Fixed endCK3-6.3Output terminal jack of stereo headphone on equipment
Free endCK3-6.3
Plug free end
Fixed endCK2-3.5
Speaker, headphone, headphone microphone, audio terminal of tape recorder Frequency signal
Equipment soil speaker, earphone, headphone output and microphone input Audio input or output signal of tape recorder Plug free end CS3-3.5 Stereo headphone jack fixed end CK3-3.5 Equipment stereo headphone output plug free end CS2-2.5
Fixed end CK2-2.5
Plug free end
Socket fixed end
Microphone remote control switch (matched with 3.5mm mini connector) Equipment headphone output and microphone remote control input (matched with 3.5mm mini connector)
Audio signal input or output end
Audio signal input or output end of equipment Note: At present, 3.5mm two-core concentric connector is still used in DC power supply, but this application is not recommended for new design. 5.3 The distribution of connector contacts shall be as specified in Table 9. 9
Headphones
Microphone\)
Speaker 2
Monaural system
Stereo system
Remote control input (for microphone with
remote control switch)
Record player, tape recorder,
Tuner and amplifier, etc.
GB/T14947—1994
Connector type
Left channel signal||t t||Left channel signal
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Note: 1) Two-core connector used for microphones and other low-level signals may result in reduced immunity to hum or RF interference. 2) Various connectors for speakers should have obvious polarity markings 3
Connected to 1
Right channel signal
Right channel signal
GB/T14947-1994
Appendix A
Example of a connector with multiple functions on a tape recorder (reference)
Some recorders are only equipped with a jack connector such as YCK5F or YCK7F, but it can be connected to a tuner, phonograph, microphone, telephone coil, radio, amplifier or another recorder, see Table A1. This arrangement also applies to analog audio signal input/output connections on computers. Table A1
Input signal from microphone, telephone coil, receiver or amplifier
(<2mV)
Left channel input signal from microphone, receiver or amplifier
(<2
Output signal to receiver or amplifier
Input signal from tuner, record player or other recorder>
100mV)
Left channel output signal to receiver or amplifier
Left channel input signal from tuner, record player or other recorder
Signal (≥100mv)
Connected to 1
Right channel input signal from microphone, radio or amplifier
(≤2mV)
Only during playback
Connected to 3
Right channel input signal to radio
or amplifier
Right channel input signal (≥
100mv) from tuner, record player or another recorder
Connected to connector
YCK7F remote control3 The assignment of connector contacts shall be in accordance with the provisions of Table 9. 9
Headphones
Microphone\)
Speaker 2
Mono system
Stereo system
Remote control input (for microphones with
remote control switches)
Record players, tape recorders,
Tuners and amplifiers, etc.
GB/T14947—1994
Connector type
Left channel signal||t t||Left channel signal
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Note: 1) Two-core connector used for microphones and other low-level signals may result in reduced immunity to hum or RF interference. 2) Various connectors for speakers should have obvious polarity markings 3
Connected to 1
Right channel signal
Right channel signal
GB/T14947-1994
Appendix A
Example of a connector with multiple functions on a tape recorder (reference)
Some recorders are only equipped with a jack connector such as YCK5F or YCK7F, but it can be connected to a tuner, phonograph, microphone, telephone coil, radio, amplifier or another recorder, see Table A1. This arrangement also applies to analog audio signal input/output connections on computers. Table A1
Input signal from microphone, telephone coil, receiver or amplifier
(<2mV)
Left channel input signal from microphone, receiver or amplifier
(<2
Output signal to receiver or amplifier
Input signal from tuner, record player or other recorder>
100mV)
Left channel output signal to receiver or amplifier
Left channel input signal from tuner, record player or other recorder
Signal (≥100mv)
Connected to 1
Right channel input signal from microphone, radio or amplifier
(≤2mV)
Only during playback
Connected to 3
Right channel input signal to radio
or amplifier
Right channel input signal (≥
100mv) from tuner, record player or another recorder
Connected to connector
YCK7F remote control3 The assignment of connector contacts shall be in accordance with the provisions of Table 9. 9
Headphones
Microphone\)
Speaker 2
Mono system
Stereo system
Remote control input (for microphones with
remote control switches)
Record players, tape recorders,
Tuners and amplifiers, etc.
GB/T14947—1994
Connector type
Left channel signal||t t||Left channel signal
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Shield and return
Note: 1) Two-core connector used for microphones and other low-level signals may result in reduced immunity to hum or RF interference. 2) Various connectors for speakers should have obvious polarity markings 3
Connected to 1
Right channel signal
Right channel signal
GB/T14947-1994
Appendix A
Example of a connector with multiple functions on a tape recorder (reference)
Some recorders are only equipped with a jack connector such as YCK5F or YCK7F, but it can be connected to a tuner, phonograph, microphone, telephone coil, radio, amplifier or another recorder, see Table A1. This arrangement also applies to analog audio signal input/output connections on computers. Table A1
Input signal from microphone, telephone coil, receiver or amplifier
(<2mV)
Left channel input signal from microphone, receiver or amplifier
(<2
Output signal to receiver or amplifier
Input signal from tuner, record player or other recorder>
100mV)
Left channel output signal to receiver or amplifier
Left channel input signal from tuner, record player or other recorder
Signal (≥100mv)
Connected to 1
Right channel input signal from microphone, radio or amplifier
(≤2mV)
Only during playback
Connected to 3
Right channel input signal to radio
or amplifier
Right channel input signal (≥
100mv) from tuner, record player or another recorder
Connected to connector
YCK7F remote control
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