The Interra ITR890-0111 iS1 Master Control is a DIN-rail logic / visualisation server in the ITR890-0XXX family. Node-based (drag-and-drop) programming builds flows, nodes and dashboards for building automation and multi-protocol BMS links. Per Interra’s coding table, 0111 enables PoE (X1=1), KNX (X2=1) and RS485 (X3=1). The server supports up to 10 000 data points, web configuration, mobile apps and an integrated hardware RTC for time-based and astronomical schedules.

Access the node editor at IP:8080 and the control panel UI at IP:8080/ui (default IP 192.168.1.250, user/password interra / interra). Hardware: Quad-Core Cortex-A53, 2 GB RAM, 8 GB eMMC, Android/Linux, 2× USB 2.0, Ethernet, PoE+ Type-II (IEEE 802.3at). Protocols listed by Interra include KNX-IP, Modbus-IP, DALI-IP, BACnet-IP, IFTTT, MQTT, EIO, WebSocket and TCP sockets. Supply is 12–30 V DC (or PoE on this coding) — never 230 V AC.

Key Features — iS1 Master Control

• Node editor + dashboard: Drag-and-drop logic and visualisation in the browser.
• ITR890-0111 options: PoE + KNX + RS485 enabled coding.
• Up to 10 000 data points: Scale for villa / small-commercial cores.
• Multi-protocol: KNX-IP, Modbus-IP, DALI-IP, BACnet-IP, MQTT and more.
• RTC & astronomy: Hardware clock for schedules and sun-based automation.
• Remote UX: Android & iOS apps plus web control panel.

At a Glance

Specification	Detail
Order code	ITR890-0111
Family	ITR890-0X1X2X3 iS1 Server
This coding	PoE + KNX + RS485
CPU / RAM / storage	Cortex-A53 quad · 2 GB · 8 GB eMMC
Power	12–30 V DC (0.5 A @ 12 V / 0.3 A @ 30 V) · PoE+
Data points	Up to 10 000
Dimensions (W × H × D)	105.4 × 90.5 × 58.5 mm
Default IP	192.168.1.250 (:8080 / :8080/ui)

Applications and Related Products

• Residential / small commercial master: Central logic and UI for Interra panels and IP devices.
• Larger logic host: ITR800-1000 iBMS Logic Server for embedded KNX/TP gateway / router class projects.
• Panels: iX10, iX3, iX2.
• Intercom: ITR810-0001 SIP Server when SIP video call control is separate.

Choosing and Commissioning

Confirm the 0111 option set (PoE/KNX/RS485) matches the project. Mount on TH 35 DIN rail in dry locations; power from 12–30 V DC or PoE+ — never mains. Change default credentials after first login. Datasheet and CAD/Revit under Downloads; no separate product manual is listed on the Interra iS1 page.