What is THIS?

Discussion in 'Radio Circuits, Repair & Performance' started by W4FBI, Jul 1, 2021.

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  1. W4FBI

    W4FBI Ham Member QRZ Page

    Working on a FTDX5000D - and found three strange items in series with the Phone CNTL line (front panel). They test as short both directions (with diode test). The schematic doesn't show anything like this.

    5000D-01.JPG
     
  2. W7UUU

    W7UUU Principal Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    Those are 3M type UY2 Scotchlok connectors very common in the telcom world for splicing phone wires.

    Dave
    W7UUU
     
    WA9SVD and WG7X like this.
  3. KK4NSF

    KK4NSF Ham Member QRZ Page

    ok..... now that we've identified the devices, what do they do?
     
  4. W7UUU

    W7UUU Principal Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    Splicing blocks - you stick two phone wires in and crimp them with a Scotchlok tool. Inside the connector is anti-oxidizing goo. They are IDC connectors - insulation displacement - so you don't have to strip the wires first. Note: they are not removable and not reusable. You cut them off.

    In my field tech days I probably installed over 100,000 of these as well as their red counterparts called UR2 and UR3 connectors.

    I still have about 3000 of each on hand in my shop

    Dave
    W7UUU
     
    WG7X and KK4NSF like this.
  5. KL7SG

    KL7SG Platinum Subscriber Platinum Subscriber QRZ Page

    They are wire splices
     
  6. W4FBI

    W4FBI Ham Member QRZ Page

    That make sense. New to me. Thanks for the help!
     
  7. KF5FEI

    KF5FEI Ham Member QRZ Page

    Also referred to as beenie-splices. Quick and waterproof way to splice two solid copper phone wires.
     
  8. KK4NSF

    KK4NSF Ham Member QRZ Page

    iteresting. Due to their shape and color, I thought they were some sort of odd diode or some other active device. thanks
     
  9. WG7X

    WG7X Platinum Subscriber Platinum Subscriber QRZ Page

    I use them also. Just bought a box of them for a project just to find another box in my tool box! Those things are great for low voltage / current applications!
     
  10. N4ZAW

    N4ZAW Subscriber QRZ Page

    I just want to add that these connectors are not OEM. Some very mean person did that to your rig. Just when I thought I've seen everything! :confused:
     

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