ST-ST patch cord

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st-st fiber optic patch cord

ST-ST patch cord


ST-ST fiber patch cord
A patch cord is a fiber optic cable used to attach one device to another for signal routing.
ST stands for Straight Tip- a quick release bayonet style connector. ST connectors are cylindrical with twist lock coupling. They are push-in and twist types.


  • Low insertion loss, high return loss
  • High dense connection, easy for operation
  • High credibility and stability
  • Good in repeatability and exchangeability


  • Testing equipment
  • Optical fiber CATV
  • Optical communication system
  • Telecommunication

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    Technical Parameters

    Parameter Unit FC, SC, LC/ Armoured fiber patch cord ST, MU MT-RJ, MPO E2000
    Insertion loss(typical) dB ≤0.3 ≤0.2 ≤0.3 ≤0.2 ≤0.3 ≤0.2 ≤0.2 ≤0.3 ≤0.2 ≤0.2 ≤0.3 ≤0.3
    Return loss dB ≥45 ≥50 ≥60 ≥30 ≥45 ≥50 ≥30 ≥45 ≥50 ≥35 ≥55 ≥75
    Operating wavelength nm 1310, 1510 1310, 1510 1310, 1510 1310, 1510
    Exchangeability dB ≤0.2 ≤0.2 ≤0.2 ≤0.2
    Vibration dB ≤0.2 ≤0.2 ≤0.2 ≤0.2
    Operating temperature -40~75 -40~75 -40~75 -40~75
    Storage temperature -45~85 -45~85 -45~85 -45~85
    Cable diameter mm φ3.0, φ2.0, φ0.9 φ3.0, φ2.0, φ0.9 φ3.0, φ2.0, φ0.9 φ3.0, φ2.0, φ0.9

    ST-ST Patch Cord

    ST-ST fiber optic patch cord is a bayonet mount cable with a push-in and twist mechanism. It is an old generation patch cord designed for providing one of the best Ethernet solutions from the 80’s to the 90’s. 

    SC stands for Straight Tip connector which is very similar to the BNC connector or Bayonet Nut Connector.

    Secure Bayonet Locking Mechanism

    The ST connector is manufactured under the standard IEC 61754-2 for high speed connections in datacoms. It has a unique key design that provides a locking coupling feature to prevent twist or movement of the 2.5mm ceramic ferrule. 

    The ST connector secured at both ends of the patch cable also has a bayonet lock for securing the connection of the patch cord to the device. ST/ST fiber optic patch cords maintain durability even in excessive pulls, strains, snags, and impacts during cabling installs and maintenance.

    Reliable and High Speed Bandwidth Capacities

    With the ST/ST fiber patch cord termination, uninterrrupted and high speed bandwidth is delivered to your system with low network losses. Plus, our ST-ST patch cords are offered at low-priced as OTSCABLE is a direct cable manufacturer and supplier of fiber optic patch cords.

    Safe and Tested Fiber Assembly with Low Insertion Loss

    Our patch cords are 100% optically inspected and tested to bring low insertion loss not exceeding 0.02 dB.

    Singlemode(OS) or Multimode(OM) ST-ST, Riser or Plenum Rated

    OTSCABLE supplies ST-ST fiber optic cable assemblies, with single mode (9/125) and multimode (50/125 and 62.5/125) options. You can choose if it’s for riser application or plenum connections or if you want it to be completely customized, you can contact us to know more about our OEM/ODM service for ST-ST patch cords. 

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