Kramer SWT-3-31-HU

Two-way control of the Kramer SWT-3-31-HU 3×1 auto-switcher from RTI, over the network using Kramer Protocol 3000. The switcher takes one USB-C and two HDMI inputs and feeds a mirrored HDMI and HDBaseT output. The driver covers input selection and auto-switching, independent USB host routing, audio volume and mute, video mute, and the full advanced set — HDCP, EDID, colour space, power delivery and CEC gateway — with live feedback on every state the switcher reports.

Key Features

• Input selection: select USB-C, HDMI 2 or HDMI 3, with discrete per-input buttons as well as a single select command. Feedback covers current input, current input name and a per-input Selected boolean.
• Auto-switch modes: Manual, Priority or Last Connected, settable as one command or as discrete buttons, with mode feedback.
• Independent USB host routing: move the USB-C host connection separately from the video route.
• Audio control: volume up/down plus set volume in dB (-60 to +30), and mute on/off/toggle, with output volume and mute-state feedback.
• Video mute: on/off/toggle with feedback.
• Signal and display feedback: per-input signal-present detection plus output display connected (HPD) status.
• Advanced control: per-input and output HDCP mode, force RGB colour space, remove deep colour, EDID force 2LPCM, power delivery mode (USB2 + 4K60 or USB3 + 4K30) and CEC gateway mode.
• Maintenance commands: refresh state, reset device and factory reset.
• Events for automation: connected/disconnected, input changed, auto-switch mode changed, volume changed, audio and video mute changes, and per-input signal present/lost.
• Single-tag wiring: each command and its feedback share one RTI tag, so dragging a tag onto a button wires the action and its feedback in a single step.

Requirements

• A Kramer SWT-3-31-HU auto-switcher with a static IP address on the same network as the processor.
• RTI XP processor (runtime 24+, software 11.4+, Integration Designer 11.4+).
• Protocol 3000 TCP port reachable from the processor — port 5000 unless it has been changed on the device.

How It Works

Give the switcher a static IP, add the driver in Integration Designer and enter the IP address in Driver Properties. The Protocol 3000 port defaults to 5000 and normally needs no change. Once deployed, the Connected system variable turns true and the driver reads back the switcher's state so panels come up in sync — current input, auto-switch mode, volume, mute states and per-input signal presence. Feedback is live, so a source plugged in at the switcher or an input change made on the front panel is reflected on the panel straight away.