Kramer 691 4K60 4:2:0 HDMI MM/SM Fiber Optic Transmitter with USB, Ethernet, RS-232, IR and Stereo Audio Embedding Over Ultra-Reach HDBaseT 2.0

Extend pristine 4K video and full device control across ultra‑long distances for demanding AV, security and video‑conference applications. The Kramer Electronics 691 transmitter is a high‑performance HDBaseT 2.0 fiber transmitter that converts HDMI, USB, Ethernet, RS‑232, IR and stereo audio into a single fiber link — supporting up to 4K60 (4:2:0) and reach up to 33 km over single‑mode fiber. With pluggable OSP+ SFP modules the 691 can be deployed on multimode or single‑mode infrastructures, giving system integrators flexibility for campus, stadium, medical and government projects. Intelligent EDID processing, HDCP 1.4 support and Kramer Network management ensure plug‑and‑play reliability, secure operation and remote diagnostics. By consolidating video, control and network signals into one fiber feed, the 691 reduces rack space and cabling complexity while enabling remote monitoring, KVM and surveillance camera integration. Ideal for surveillance, monitoring, control rooms and large AV systems — specify the Kramer 691 transmitter to extend and protect your signal backbone for mission‑critical installations.

• Extend 4K60 video and control signals up to 33 km over single‑mode fiber for large-scale AV, security and surveillance installations
• Transmit HDMI, USB, Ethernet, RS‑232, IR and embedded stereo audio together to simplify cabling and enable remote KVM and device management
• HDBaseT 2.0 compatibility with pluggable OSP SFP+ modules for flexible multimode or single‑mode deployments and future-proof upgrades
• Intelligent EDID/HDCP handling and Kramer Network management for reliable plug‑and‑play operation and remote monitoring
• Secure, low-latency signal transport ideal for mission‑critical environments such as control rooms, medical facilities and government sites
• Embed/unembed audio and pass-through HDMI features (4K60 4:2:0, HDR and multichannel audio) to preserve AV quality across ultra-long distances