

The 1786-TPYS ALLEN-BRADLEY ControlNet Y-Tap is a critical passive network component designed for Rockwell Automation ControlNet systems. Its primary function is to provide a physical Y-shaped branching point on the coaxial trunk line, allowing connection of two additional nodes or segments while maintaining the characteristic impedance and signal integrity required for deterministic communication. Built for industrial environments, this Y-Tap ensures minimal insertion loss and supports the full 5 Mbps data rate. It is ideal for expanding ControlNet networks in manufacturing cells, process lines, and discrete control applications where reliable, real-time data exchange is paramount. The 1786-TPYS features standard BNC connectors for easy integration with RG-6/U coaxial cable and is fully compliant with ControlNet specifications.
| Parameter | Specification |
|---|---|
| Product Type | ControlNet Coaxial Y-Tap (Passive) |
| Model Number | 1786-TPYS |
| Network Compatibility | ControlNet (Coaxial Media) |
| Data Rate | 5 Mbps (Full ControlNet Speed) |
| Connector Type | BNC Female (3 ports – 1 trunk in, 2 trunk out or device connections) |
| Cable Type | RG-6/U or equivalent 75 ohm coaxial cable |
| Impedance | 75 ohms (matched to ControlNet coaxial specification) |
| Insertion Loss | < 0.5 dB typical |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Enclosure Material | Zinc die-cast with nickel plating (corrosion resistant) |
| Dimensions (L x W x H) | Approx. 4.1 x 2.5 x 1.2 inches (104 x 64 x 30 mm) |
| Weight | Approx. 0.15 lbs (68 g) |
| Mounting | Panel mount or DIN rail compatible (via optional bracket) |
| Environmental Rating | IP20 (indoor use only) |
| Standards Compliance | ControlNet Specification, CE, UL listed |
| Maximum Nodes per Segment | 48 (with appropriate taps and terminators) |
| Maximum Segment Length | 1000 meters (3280 feet) at 5 Mbps |
| Warranty | Standard 1-year manufacturer warranty |

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