Kramer 676 R4K60 4:4:4 HDMI and RS-232 Receiver over Ultra-Reach MM/SM Fiber Optic
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4K60 4:4:4 HDMI and RS-232 Receiver over Ultra-Reach MM/SM Fiber Optic
The Kramer 676R is a high-performance HDMI fiber receiver designed for ultra-long distance distribution of 4K @ 60 Hz (4:4:4) audio/video signals. It seamlessly converts optical input from a compatible transmitter into HDMI and RS‑232 outputs. Ideal for large-scale AV installations requiring secure, long-distance signal extension.
Supporting both multimode (up to 3 km) and single-mode (up to 33 km) fiber with included SFP+, the 676R complies with HDMI 2.0 and HDCP 2.2. It incorporates Kramer’s I‑EDIDPro™ intelligent EDID management and CEC-based power-saving control. Its compact, rack-friendly DigiTOOLS® aluminum housing ensures flexible deployment.
Designed for professional environments like government buildings, conference centers, and multi-room setups, the 676R offers near-zero latency AV distribution over long distances.
Key Features
- Resolution: Up to 4096×2160 @ 60 Hz (4:4:4)
- Bandwidth: 18 Gbps (6 Gbps per HDMI channel)
- Fiber Optic: LC connector(s), multimode & single-mode compatible
- SFP+ Module: 10 Gbps IEEE 802.3ae compliant (multimode included)
- Control: Bidirectional RS‑232 via 3‑pin terminal block
- CEC Power Control: Automatic on/off via HDMI linked devices
- I‑EDIDPro™: For automatic HDMI handshaking and plug-and-play setup
- Rack Mount: Rackable in groups of three using DigiTOOLS® bracket
- Indicators: LEDs for power, source, sink, optical link status
- Cooling & Housing: Convection ventilation, aluminum chassis
Technical Specifications
- Dimensions: 4.72″ × 2.81″ × 0.96″ (12.00 × 7.15 × 2.44 cm)
- Weight: 0.5 lb (0.2 kg)
- Video Bandwidth: 18 Gbps
- Max Resolution: 4096×2160 @ 60 Hz (4:4:4)
- HDMI Compliance: HDMI 2.0, HDCP 2.2
- Fiber Reach: 3 km on OM3 multimode; 33 km on OS1 single-mode
- SFP+ Standards: Patent 10 Gbps IEEE 802.3ae; Class 1 Laser
- RS‑232 Baud Rate: 300-115200
- Temperature Range: Operating 0 °C to +40 °C; Storage -40 °C to +70 °C
- Humidity: 10-90% RH non-condensing
- Power Input: 12 V DC, 2 A (380 mA consumption)
- Certifications: UL, CE, RoHS, WEEE, EMC EN 55022/24; IEC 60825‑1/2; IEC 62368‑1
- Housing: Fan-less, aluminum
What's Included
- 676R Receiver unit
- Multimode 10 Gbps SFP+ transceiver
- 12 V DC power adapter + cord
- Mounting bracket set (rack-friendly)
- User documentation & quick-start guide
Kramer 676R HDMI and RS‑232 Fiber Receiver
The Kramer 676R is a high-performance HDMI fiber receiver designed for ultra-long distance distribution of 4K @ 60 Hz (4:4:4) audio/video signals. It seamlessly converts optical input from a compatible transmitter into HDMI and RS‑232 outputs. Ideal for large-scale AV installations requiring secure, long-distance signal extension.
Supporting both multimode (up to 3 km) and single-mode (up to 33 km) fiber with included SFP+, the 676R complies with HDMI 2.0 and HDCP 2.2. It incorporates Kramer’s I‑EDIDPro™ intelligent EDID management and CEC-based power-saving control. Its compact, rack-friendly DigiTOOLS® aluminum housing ensures flexible deployment.
Designed for professional environments like government buildings, conference centers, and multi-room setups, the 676R offers near-zero latency AV distribution over long distances.
Key Features
- Resolution: Up to 4096×2160 @ 60 Hz (4:4:4)
- Bandwidth: 18 Gbps (6 Gbps per HDMI channel)
- Fiber Optic: LC connector(s), multimode & single-mode compatible
- SFP+ Module: 10 Gbps IEEE 802.3ae compliant (multimode included)
- Control: Bidirectional RS‑232 via 3‑pin terminal block
- CEC Power Control: Automatic on/off via HDMI linked devices
- I‑EDIDPro™: For automatic HDMI handshaking and plug-and-play setup
- Rack Mount: Rackable in groups of three using DigiTOOLS® bracket
- Indicators: LEDs for power, source, sink, optical link status
- Cooling & Housing: Convection ventilation, aluminum chassis
Technical Specifications
- Dimensions: 4.72″ × 2.81″ × 0.96″ (12.00 × 7.15 × 2.44 cm)
- Weight: 0.5 lb (0.2 kg)
- Video Bandwidth: 18 Gbps
- Max Resolution: 4096×2160 @ 60 Hz (4:4:4)
- HDMI Compliance: HDMI 2.0, HDCP 2.2
- Fiber Reach: 3 km on OM3 multimode; 33 km on OS1 single-mode
- SFP+ Standards: Patent 10 Gbps IEEE 802.3ae; Class 1 Laser
- RS‑232 Baud Rate: 300-115200
- Temperature Range: Operating 0 °C to +40 °C; Storage -40 °C to +70 °C
- Humidity: 10-90% RH non-condensing
- Power Input: 12 V DC, 2 A (380 mA consumption)
- Certifications: UL, CE, RoHS, WEEE, EMC EN 55022/24; IEC 60825‑1/2; IEC 62368‑1
- Housing: Fan-less, aluminum
What's Included
- 676R Receiver unit
- Multimode 10 Gbps SFP+ transceiver
- 12 V DC power adapter + cord
- Mounting bracket set (rack-friendly)
- User documentation & quick-start guide
