- UN45Y pin to pin connected RJ11 6P4C in-line coupler
- For joining two RJ11 6P4C plugs to extend RJ11 6P4C lead.
- SN88Y cross pin connected RJ11 6P4C in-line reverse coupler RJ11 couplers for connecting two RJ11 cables. Order code UN45Y is connected pin to pin Order Code SN88Y is connected cross pin.