{"product_id":"allen-bradley-1786-tpys-controlnet-coaxial-tap","title":"Allen-Bradley 1786-TPYS ControlNet Coaxial Tap","description":"\u003ch2\u003eAllen-Bradley 1786-TPYS ControlNet Coaxial Tap\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1786-TPYS\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1786-TPYS\u003c\/strong\u003e ControlNet Coaxial Y-Tap, operates as a dedicated hardware component for passive physical layer media tapping within ControlNet RG-6 coaxial network topologies.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1786\u003c\/strong\u003e: Allen-Bradley physical layer media accessories bullet family for ControlNet communication systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTPY\u003c\/strong\u003e: Y-tap structural orientation allowing dual coaxial trunk access ports with a single drop connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e: Straight connector orientation housing design with an integrated 1 m drop cable terminate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1786-TPYS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to +70 deg C (-13 to +158 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive (0 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Type\u003c\/td\u003e\n\u003ctd\u003eControlNet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eTrunk-line \/ Drop coaxial bus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Transfer Rate\u003c\/td\u003e\n\u003ctd\u003e5 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e75 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003e2 x BNC female (Trunk A\/B), 1 x BNC male (Device drop)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop Cable Length\u003c\/td\u003e\n\u003ctd\u003eIntegrated 1 m (3.28 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-strength industrial thermoplastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL Listed, CE Marked, C-Tick, FM Class 1 Div 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Backplane \u0026amp; Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe 1786-TPYS provides deterministic ControlNet media passive coupling, maintaining tight 75-Ohm impedance matching across 5 Mbps transmission loops. This physical tap minimizes signal insertion loss and prevents impedance discontinuity reflections that cause media fault alarms. The drop cable structure ensures high physical channel separation and backplane bus communication velocity compatibility without degrading signal-to-noise ratios across multi-node trunk configurations.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1786-TPYS tap require an external power supply to operate?\u003c\/p\u003e\n\u003cp\u003eA: No, the 1786-TPYS is a completely passive physical layer device that couples RF signals directly through matched impedance circuitry without drawing current from the backplane or external supply.\u003c\/p\u003e\n\u003cp\u003eQ: How should unused trunk ports on the 1786-TPYS be handled if located at the end of a physical segment?\u003c\/p\u003e\n\u003cp\u003eA: Any open, unused trunk connector on a end-of-line tap must be closed using a standard 75-Ohm coaxial terminator (such as the Allen-Bradley 1786-XT) to prevent signal reflections across the network.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1786-TPYS be hot-swapped while the ControlNet network is transmitting data?\u003c\/p\u003e\n\u003cp\u003eA: Disconnecting the trunk connections will break the physical bus topology and disrupt communication downline. However, disconnecting or reconnecting the device node drop cable BNC connector will not interrupt trunk signal continuity.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the tap securely to a DIN rail or enclosure panel surface using standard hardware before attaching heavy coaxial trunk lines to prevent strain on the BNC connectors.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum bend radius of 75 mm for the RG-6 coaxial trunk cable and the integrated 1 m drop cable to avoid structural core damage and impedance alterations.\u003c\/li\u003e\n\u003cli\u003eTorque all BNC twist-lock connections firmly by hand to ensure a low-resistance outer shield connection for solid grounding and signal shielding.\u003c\/li\u003e\n\u003cli\u003eEnsure the coaxial outer shield is tied to ground at a single dedicated earth location per network segment to reduce ground loop interference.\u003c\/li\u003e\n\u003cli\u003eIn redundant ControlNet applications, run Trunk A and Trunk B cables through separate physical conduits to prevent simultaneous mechanical or environmental damage.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43757401243738,"sku":"1786-TPYS","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1786-TPYS2.jpg?v=1785314351","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1786-tpys-controlnet-coaxial-tap","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}