676T - AV extender Kramer - Free user manual and instructions
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| Product Type | AV Extender Transmitter |
| Brand | Kramer |
| Model | 676T |
| Category | AV Extender |
| Signal Type | SD-SDI, HD-SDI, 3G-SDI |
| Input Connector | 1 x BNC (SDI) |
| Output Connector | 1 x Fiber Optic (LC) |
| Supported Standards | SMPTE 292M, SMPTE 424M |
| Maximum Data Rate | 2.97 Gbps |
| Optical Wavelength | 850 nm (multi-mode) |
| Maximum Transmission Distance | Up to 2 km (multi-mode fiber) |
| Power Supply | 12V DC, 500 mA |
| Power Consumption | 5W |
| Dimensions (W x D x H) | 12.5 cm x 7.2 cm x 2.4 cm |
| Weight | 0.35 kg |
| Chassis Material | Aluminum |
| LED Indicators | Power, Signal Presence |
| Operating Temperature | 0 to 40 degrees Celsius |
| Compliance | CE, RoHS |
| Maintenance | Clean with a soft dry cloth |
| Repairability | No user-serviceable parts; contact Kramer support |
Frequently Asked Questions - 676T Kramer
What is the Kramer 676T used for?
The Kramer 676T is an AV extender transmitter that converts SDI video signals into optical signals for long-distance transmission. It is commonly used in broadcast, production, and professional AV installations.
Which SDI formats are supported?
It supports SD-SDI (270 Mbps), HD-SDI (1.485 Gbps), and 3G-SDI (2.97 Gbps), covering all common video resolutions up to 1080p at 60 Hz.
How far can the signal be transmitted?
The 676T can transmit signals up to 2 km over multi-mode fiber, depending on the fiber quality and signal format.
What is required to receive the signal?
To receive the transmitted optical signal, you need a compatible receiver such as the Kramer 676R, which converts the optical signal back to SDI.
Does the 676T support embedded audio?
Yes, the 676T preserves embedded SDI audio, including up to 16 channels of digital audio, as part of the video stream.
What kind of fiber cable is needed?
The 676T uses LC connectors and is designed for multi-mode fiber (typically 50/125 or 62.5/125 micron). For distances, use a high-quality MPO or LC patch cable.
Does the unit require a separate power supply?
Yes, the 676T requires a 12V DC power supply (500 mA). An AC adapter is usually included, but check the package contents.
How do I set up the 676T?
Connect the SDI source to the BNC input, attach a fiber optic cable to the LC output, plug in the power supply, and the unit will automatically detect and convert the signal. Ensure the receiver is on the other end.
Are there any LED indicators on the device?
Yes, the 676T has LED indicators for power and signal presence, allowing you to quickly check the operational status.
What should I do if there is no video output?
Verify that all cables are properly connected, the power supply is active, and the fiber optic connection is clean. Confirm the receiver is paired and the input signal format is supported. If the issue persists, contact Kramer technical support.
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USER MANUAL 676T Kramer
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Product information
Brand : Kramer
Model : 676T
Category : AV extender