IPR/S3.1.1 KNX IP Router: Ethernet Connection with Standard KNXnet/IP Protocol
Like its secure counterpart, the IPR/S3.1.1 offers flexible power supply via standard 12–30 V DC auxiliary voltage or convenient PoE (Power over Ethernet), minimizing installation complexity in the distribution board.
1. IPR/S3.1.1 KNX IP Router: Standard Connectivity and Tunneling
This router is a robust solution for integrating the KNX twisted pair system into an existing IP network.
Protocol and Access:
- Protocol: Uses the KNXnet/IP protocol for standard Routing (linking KNX lines/areas) and Tunneling (remote access/programming).
- Access Points: Provides 5 Tunneling Servers for simultaneous connections from ETS programming tools or visualization clients.
- Networking: Supports both fixed IP addressing and automatic allocation via DHCP server.
- Multicast Control: Allows the standard KNX Multicast communication to be disabled, enabling Unicast communication for up to 10 IPR/S 3.1.1 devices.
Topology and Power:
- Function: Operates as a fast line and area coupler with full filter table support (groups 0-31).
- Power Options: Accepts auxiliary power from 12 … 30 V DC or via PoE (IEEE 802.3af class 1).
- Power Loss: Extremely low power loss of 1.5 W.
2. Technical Details and Compact Installation
A compact component suitable for professional DIN-Rail mounting.
- Installation: Designed for professional DIN-Rail mounting, occupying just 2 modular spacings (36 mm width).
- Integration: Essential for linking KNX lines, relying on a KNX Power Supply for DC auxiliary power (Internal Link).








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