KRAMER 676T Ultra-Range Transmitter User Guide

: June 6, 2024
: Kramer

Table of Contents

KRAMER 676T Ultra-Range Transmitter
Check what’s in the box
Get to know your 676T and 676R
Mount 676T/676R
Connect inputs and outputs
Connect power
Operate 676T and 676R
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

KRAMER 676T Ultra-Range Transmitter

Check what’s in the box

676T HDMI Optical Transmitter or 676R HDMI Optical Receiver
1 OSP-MM1 Fiber Optic SFP+ Transceiver
1 Bracket se
1 Power cord and adapte
4 Rubber fee
1 Quick start guide

Get to know your 676T and 676R

676T can be connected to a single 676R device or to multiple devices via optical splitters. When multiple devices are connected, a receiver device is defined as primary when its Tx (SFP+ OUT) optical fiber is connected directly to the 676T Rx optical fiber (SFP+ IN).

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#	Feature	Function
1	IN LED	Lights green when a connected source device (with an active HDMI™

signal) is detected. Flashes 4 times green when resetting the device.

Off when no active signal is detected on the connected HDMI source device.

2| OUT LED| Lights green when an HDMI acceptor device (with an active HDMI signal) is detected. Off when no active signal is detected on the connected acceptor.
3| LINK LEDs| Tx| Lights green when OUT IN SFP+ is connected, and an active Tx optical link is detected. Lights red when OUT IN SFP+ is connected, and a fault is detected on the single/primary 676R receiving optical link.

Off when the OUT IN SFP+ is disconnected.

Rx| Lights green when OUT IN SFP+ is connected, and an active Rx optical link is detected. Lights red when OUT IN SFP+ is connected, and a fault is detected on the incoming optical link.

Off when OUT IN SFP+ is disconnected.

Terminal Block Connector

| Connect to a serial controller to communicate serially with all the connected receivers.

Receives RS-232 communication only from a single/primary receiver.

Press and hold for over 5 seconds to reset the device to factory default values.

10| SERVICE Micro USB Port| Connect to a PC to perform firmware upgrade (via K-Upload).
11| 12V DC Power Connector| 12V DC connector for powering the unit.

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#	Feature	Function
12	IN LED	Lights green when a connected HDMI source device (with an active

HDMI signal) is detected.

Flashes 4 times green when resetting the device.

Off when no active signal is detected on the connected source device.

IN LED is always off for 676R receivers other than the single/primary device.

13| OUT LED| Lights green when an HDMI acceptor device (with an active HDMI signal) is detected on the single/primary 676R device.

Off when no active signal is detected on the connected acceptor.

14| LINK LEDs| Tx| Lights green when OUT IN SFP+ is connected, and an active Tx optical link is detected.

Lights red when OUT IN SFP+ is connected, and a fault is detected on the 676T

receiving optical link.

Tx LED on devices other than the single/primary 676R device always light red. Off when OUT IN SFP+ is disconnected.

Rx| Lights green when OUT IN SFP+ is connected, and an active Rx optical link is detected.

Lights red when OUT IN SFP+ is connected, and a fault is detected on the incoming active optical link.

Off when OUT IN SFP+ is disconnected.

Only the controlled device connected to the single/primary receiver returns serial data to the transmitter.

Mount 676T/676R

Install 676T/676R using one of the following methods:

Attach the rubber feet and place the unit on a flat surface.
Fasten a bracket (included) on each side of the unit and attach it to a flat surface (see www.kramerav.com/downloads/676T).
Mount the unit in a rack using the recommended rack adapter (see www.kramerav.com/product/676T).
Ensure that the environment (e.g., maximum ambient temperature & air flow) is compatible for the device.
Avoid uneven mechanical loading.
Appropriate consideration of equipment nameplate ratings should be used for avoiding overloading of the circuits.
Reliable earthing of rack-mounted equipment should be maintained.
Maximum mounting height for the device is 2 meters.

Connect inputs and outputs

Always switch OFF the power on each device before connecting it to your 676T/676R.

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For optimal performance, use the recommended Kramer cables available at www.kramerav.com/product/676T. Using third-party cables may cause damage!
To install/replace the OSP-MM1 or other Kramer recommended SFP+ transceiver:

Pull the bail out and remove the currently installed transceiver, insert the protective cap and store in a safe place.
Make sure the bail of the new transceiver is pushed up, in the closed position.
Insert the new transceiver into the relevant optical device SFP+ slot and push it in until it clicks.
Remove the protective cap and store it in a safe place for future use.

Warning: Connecting the OSP SFP+ connector to an LC(APC) fiber connector may cause poor performance and damage the connector! Refer to www.kramerav.com/downloads/OSP-MM1 for more information.

Warning: Class 1 Laser Product

Invisible laser radiation present.
Avoid long-term viewing of laser.
Avoid the use of magnifying viewing aids or instruments (such as binoculars, telescopes, microscopes and magnifying lenses, but not spectacles or contact lenses).
Avoid placing optical devices in the emitted beam that could cause the concentration of the laser radiation to be increased.

Connect power

Connect the power cord to 676T/676R and plug it into the mains electricity.

Safety Instructions (See www.kramerav.com for updated safety information)

Caution: There are no operator serviceable parts inside the unit.

Warning

• Use only the power cord that is supplied with the unit.
• Disconnect the power and unplug the unit from the wall before installing.

Operate 676T and 676R

Set the 676T DIP-switches

The DIP-switch setup on 676T applies to all the 676R devices that are connected. A DIP-switch that is down is on, up is off. Changes to the DIP switches take effect immediately. By default, all DIP-switches are set to Off

#	Function	Status
1	EDID Lock	Off (up) – Unlock stored EDID.

On (down) – Lock stored EDID.

2| Color Depth| Off (up) – Follow output color depth. On (down) – Force 8-bit color depth.
3| Input HDCP Appearance| Off (up) – HDCP ON. Always input HDCP-supported appearance.

On (down) – HDCP OFF. Always input HDCP-unsupported appearance (MAC mode).

4| For future use|

Control the devices

Operate remotely, by RS-232 serial commands transmitted by a touch screen system, PC, or other serial controller| RS-232 Control / Protocol 3000 on the Micro USB
---|---
Baud Rate:| 115,200| Parity:| None
Data Bits:| 8| Command Format:| ASCII
Stop Bits:| 1| |
Example (get device model name): #model?
Factory Default Parameters
Reset front panel button:| Press and hold for over 5 seconds to reset the device to factory default settings.
P3K command:| #factory