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PLsystem.com Connector Pin-out Standards Page

  • Headset Pinout
  • RTS BP-325 Intercom Beltpack
  • Telex KP98-7 ADAM Keypanel
  • RTS/Telex 803 Master Station
  • RTS/Telex MCE-325 user station
  • Clear-Com Matrix Products

  • Other Audio Connectors
    Top
    verified-Beyerdynamic DT-108/109
    pin #UseColor For unbalanced wiring, tie yellow and green together and use shield for mic low. For a DT-108( single ear headset) the red conductor is used for the ear high.

    The pin numbers shown are for an RTS BP-325 intercom beltpack. They are for reference only. The pin-designations for another device might be different.

    1mic shieldShield
    2mic signal (+) phaseyel
    2mic signal (-) phasegrn
    4ear signal left highred
    3ear signal left lowbrn
    5ear signal right highorg
    3ear signal right lowblu

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    verified-Intercom Specialties LWS 5-pin
    pin #UseColor LWS Headset
     mic signal shieldShield
     mic signal highwht
     ear signal lowblk
     ear signal highred

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    verified-David Clark-Latest TNN Version
    pin #UseColor Pin Numbers reference a BP-325 Stereo Headset Connector. The headset is left/right reversable, therefore the "left" and "right" designations are somewhat academic. The earpiece on the side with the feeder cable uses the red wire for ear high.
    1mic signal shieldShield
    2mic signal highwht
    3ear lowyel/blk
    4ear left highred
    5ear right highblu

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    verified-Sennheiser HMD-24x
    pin #UseColor notes
     mic signal shieldShield
     mic signal highred
     mic signal lowblu
     ear left lowyel
     ear left highgry
     ear right lowgrn
     ear right highwht

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    RTS BP-325 Line Connector
    pin #UseColor
    1Common/GNDShield
    2Channel #1 audio and 30vdc
    3Channel #2 audio

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    verified-RTS BP-325 Loop/AUX Connector-PGM input mode
    pin #UseColor Uses the Rear Panel PGM Level control
    1Common/GNDShield
    2Non-inverting input
    3Inverting input

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    verified-RTS BP-325 Loop/AUX Connector-Local Power mode
    pin #UseColor notes
    1Common/GNDShield
    212-24VDC
    3NC

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    verified-RTS BP-325 STEREO Headset Connector
    pin #UseColor notes
    1mic signal lowShield
    2mic signal high 
    3ear signal low 
    4ear signal left 
    5ear signal right 

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    verified-RTS BP-325 MONO Headset Connector
    pin #UseColor notes
    1mic signal lowShield
    2mic signal high 
    3ear signal low 
    4ear signal high 
    ]
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    verified-Telex KP98-7 4-pin Headset Connector
    pin #UseColor The HDST microphone input is balanced. To prevent headset cable MIC-EAR crosstalk, tie pin 1 to chassis ground. It is easiest to do this on the rear panel EXT HDSTconnector.
    1mic signal lowyel
    2mic signal highgry
    3ear signal lowgry
    4ear signal highred

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    Telex KP98-7 5-pin Headset Connector
    pin #UseColor Pin 4 and 5 are tied at the headset connector
    1mic signal lowyel
    2mic signal highgry
    3ear signal lowgry
    4ear signal highred
    5ear signal hightie to pin 4

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    verified-Telex KP98-7 9-pin Rear-Panel Headset Connector (DB-9M)
    pin #UseColor Tie pin 2 to pin 6 to unbalance the dyn. mic input.
    1Dyn. mic + 
    2Dyn. mic shield 
    3Carbon mic +- 
    4Carbon mic Shield 
    5Ear signal high 
    6Dyn. mic - 
    7HDST SW control 
    8HDST SW common 
    9Ear signal common 

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    verified-Telex KP98-7 or KP12 Matrix Line Connector DB-9F
    pin #UseColor
    1DATA + 
    2DATA - 
    3GND, Shield Input 
    4Station output + (talk) 
    5Station output - (talk 
    6GND, Shield Data 
    7Station input + (listen) 
    8Station input - (listen) 
    9NC 

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    verified-RTS 803/802 Front Panel Headset
    pin #UseColor
    1mic signal lowShield
    2mic signal high 
    3ear signal low 
    4ear signal left 
    5ear signal right 

    Top
    RTS 803 DB-25 (J111) Connector
    pin #UseColor

    J111 is the female DB-25 connector on the right side of the lower part of the chassis. The USMB output is used to feed an RTS 4000 series IFB panel or it can be routed a patchfield.

    1EXT HDST mic ground 
    2EXT HDST Headphone gnd 
    3EXT HDST Right Headphone high 
    4Chassis ground 
    5EXT Panel mic high 
    6EXT carbon headset-common 
    7EXT carbon headset-Headphone high 
    8Digital ground 
    9Program 1 high 
    10Program 2 high 
    11Chassis ground 
    12Unswitched mic out high 
    13Chassis ground 
    14EXT HDST mic high 
    15EXT HDST Left headphone high 
    16Chassis ground 
    17EXT Panel mic low 
    18EXT Panel mic excitation 
    19EXT carbon headset-mic high 
    20NC 
    21Program 1 low 
    22Program 2 low 
    23Chassis ground 
    24Unswitched mic out low 
    25Chassis ground 

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    RTS 803 DB-25 (J108) Connector
    pin #UseColor Male DB-25 connector. Notes
    1x 
    2x 
    3x 
    4x 
    5x 
    6x 
    7x 
    8x 
    9x 
    10x 
    11x 
    12x 
    13x 
    14x 
    15x 
    16x 
    17x 
    18x 
    19x 
    20x 
    21x 
    22x 
    23x 
    24x 
    25x 

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    RTS SAP-1626 Camera Connector
    pin #UseColor notes
    1common 
    2common 
    3common 
    4common 
    5common 
    6common 
    7common 
    8common 
    9common 
    10common 
    11common 
    12common 
    13NC 
    14Camera 1 CH-1 
    15Camera 2 CH-1 
    16Camera 3 CH-1 
    17Camera 4 CH-1 
    18Camera 5 CH-1 
    19Camera 6 CH-1 
    20Camera 1 CH-2 
    21Camera 2 CH-2 
    22Camera 3 CH-2 
    23Camera 4 CH-2 
    24Camera 5 CH-2 
    25Camera 6 CH-2 

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    Clear-Com ICS-2002/3 Front Panel Headset
    pin #UseColor
    1mic signal lowShield
    2mic signal high 
    3ear signal low 
    4ear signal high 

    Top
    ICS-2003Matrix Connector
    pin #UseColor notes
    1x 
    2x 
    3x 
    4x 
    5x 
    6x 
    7x 
    8x 
    9x 
    10x 
    11x 
    12x 
    13x 
    14x 
    15x 

    Top
    ICS-2003 Clearcom Miscellaneous Connector
    pin #UseColor notes
    1x 
    2x 
    3x 
    4x 
    5x 
    6x 
    7x 
    8x 
    9x 
    10x 
    11x 
    12x 
    13x 
    14x 
    15x 

    Top
    ICS-2003 Clearcom Audio I/O Connector
    pin #UseColor notes
    1x 
    2x 
    3x 
    4x 
    5x 
    6x 
    7x 
    8x 
    9x 
    10x 
    11x 
    12x 
    13x 
    14x 
    15x 

    Top
    Verified-Clear-Com AB-100 6-pin (Factory)
    pin #UseColor notes
    1Mic signal low (-)Shield
    2Mic signal high (+) 
    3Headphone Common 
    4Ear signal low 
    5Ear signal left 
    6Microphone Shield 

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    Clear-Com AB-100 7-pin Headset (TNN Modification)
    pin #UseColor notes
    1Mic Signal shieldShield
    2Mic Signal Low (-)Red
    3Mic Signal High (+)Blu
    4Ear Signal Low (-)Shield
    5Ear Left Signal(+)Red
    6Ear Signal Low (-)Mult to pin 4
    7Ear Right Signal(+)Clear

    Top
    RTS MCE-325 FP Headset Connector
    pin #UseColor
    For remote Mic on/off: short pin-1 to pin-6 to turn on the microphone.
    1HDST Mic LO (-) 
    2HDST Mic HI Com. 
    3Ear Common (LO) 
    4Ear Left HI 
    5Ear Right HI 
    6Remote Mic On/Off 

    Top
    RTS MCE-325 DB-25 Accessory Connector
    pin #UseColor This female DB-25 connector has it all. The USMB output is used to feed an RTS 4000 series IFB panel mic signal in. On the 4001 IFB panel, use TB-2 pins 3 and 4 for line level input.
    1USMB -Hot Mic Out LO (-) 
    2EXT Panel Mic Com. 
    3Chassis Ground 
    4HDST Mic HI 
    5HDST Ear HI Left 
    6Talk Key #1 Logic Out 
    7Talk Key #3 Logic Out 
    84W-A HI 
    94W-B HI 
    10Common 
    11Common 
    12ISO Logic 
    13Ext +14 VDC in 
    14USMB -Hot Mic Out HI (+) 
    15EXT Panel Mic HI 
    16HDST Mic HI 
    17HDST Ear Common (LO) 
    18HDST Ear HI Right  
    19Talk Key #2 Logic Out 
    20Talk Key #4 Logic Out 
    214W-A LO 
    224W-B LO 
    23Ext +18 VDC in  
    24Rem. Mic ON logic in 
    25Speaker mute logic in. 

    Top
    RTS MCE-325 External Speaker
    pin #UseColor DO NOT USE a Metal Shell Connector. This is a balanced speaker driver. Shorting either tip or ring to ground will result in a call to the Telex Service department.
    TipSpeaker amp + out 
    RingSpeaker amp - out 
    SleveNo connection. 

    Top
    DT-12 connector (a.k.a F/K). Download Graphic-GIF file.

    Top 25-pair telephone type (Champ) connectorx. Download Graphic-GIF file.


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