
691 Quick Start (P/N: 2900-300523QS REV 5)
691 Quick Start Guide
This guide helps you install and use your 691 for the first time.
Go to www.kramerav.com/downloads/691 to download the latest user manual and check if firmware
upgrades are available.
Step 1: Check what’s in the box
691 HDBT 2.0 Optical Transmitter
Step 2: Get to know your 691
Connect to the USB host for traffic extension, (for example, a laptop)
Lights green when the HDBT link is valid
Lights green when an HDMI active signal device is connected
Lights green when the device receives power
Connect to the HDMI source
IR 3.5mm Mini Jack Connector
Connect to an external infrared transmitter or sensor for traffic extension
RS-232 3-pin Terminal Block
Connect to an RS-232 controller for traffic extension (for example, a PC to control the projector)
Connect to the stereo, analog audio source
Connect the fiber optic cable to the OUT IN SFP+ LC connector
RS-232 3-pin
Terminal Block
Connect to the serial controller to control this device
Connect to the Ethernet controller to control this device or to a LAN to extend network traffic to
the receiver
Press and hold for 5 seconds to reset the device to factory default settings.
Press and immediately release to power-cycle the device (Reset).
Connect to a PC to perform firmware upgrades
Connect to the supplied power adapter

Step 3: Install the 691
To mount the 691 in a rack, use an RK-1 rack adapter. Alternatively, attach the rubber feet to the underside of the 691 and place it
on a table.
Step 4: Connect the inputs and outputs
Always switch OFF the power on each device before connecting it to your 691. For best results, we recommend that you always use
Kramer high-performance cables to connect AV equipment to the 691.
Always cross-connect the fiber connections, Rx OUT to Tx IN and Rx IN to Tx OUT, as transmission is carried
on simplex fiber strands.
To install the OSP SFP+ transceiver:
1. Make sure the bail is pushed up, in the closed position.
2. Insert the OSP SFP+ 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.
For the Ethernet connectors, see the proper
wiring diagram
A DIP-switch that is down is on, up is off. Changes to the DIP-switches only take
effect on power-up. After changing a switch, reboot the device.
Off—Embedded audio (factory default)
On—Analog audio
Off—Automatic EDID acquisition (factory default)
On—Lock (locks the current EDID so that changes
on the output do not result in changes to the EDID)
Off—Auto (factory default)
On—Manual
Step 5: Connect the power
Connect the power adapter to the 691 and plug the adapter into the mains electricity.
Safety Instructions
There are no operator serviceable parts inside the unit
Use only the Kramer Electronics power supply that is provided with the unit
Disconnect the power and unplug the unit from the wall before installing
See www.KramerAV.com for updated safety information.
Step 6: Control the 691 via the:
Example (get device model name):
Press and hold for 5 seconds to reset the device to factory default settings.
Select Device Settings page and click Factory reset
691 Audio delay input switching on new signal:
Audio delay input switching on signal loss (leave 5V on):
Audio delay input switching on cable unplug:
Video delay power off 5V on signal loss:
Name: Admin; Password: Admin

Technical Specifications
On a female HDMI connector
1 Stereo Analog Unbalanced Audio
2Vrms / 10kΩ, on a 3.5mm mini jack
On a 3.5mm mini jack for IR link extension
On a female USB-B connector for USB link extension
On a 3-pin terminal block for serial link extension
On a 3-pin terminal block for device control
On an RJ-45 female connector for device control and LAN extension
Multi-mode (MM) or single-mode (SM)
10Gbps SFP+ IEEE 802.3ae compliant
Typical Optical Transmission Power
Typical Optical Maximum Loss Budget
Max Reach over OM3 MM Fiber
Typical Optical Transmission Power
Typical Optical Maximum Loss Budget
Max Reach over OS1 SM Fiber
10.2Gbps (3.4Gbps per graphic channel)
4K UHD @60Hz (4:2:0) 24bpp resolution
Analog Audio
Max Vrms Level
0.03% @1kHz at nominal level
Max Extended Line Rate Bandwidth
127Mbps (out of max 480 USB)
Max Transmission Bandwidth
Supported PC Web
Browsers
Internet Explorer (32/64 bit) version 10
Firefox version 30
Chrome version 35
Chrome version 35
Firefox version 30
Safari version 7
Minimum Browser Window Size
0° to +40°C (32° to 104°F)
-40° to +70°C (-40° to 158°F)
10% to 90%, RHL non-condensing
Regulatory Compliance
Safety
21.46cm x 16.3 cm x 4.36cm
(8.45" x 6.42" x 1.7")
Shipping Dimensions (W, D, H)
35.1cm x 21.2cm x 7.2cm
(13.82" x 8.35" x 2.8")
For optimum range and performance use the recommended USB,
Ethernet, serial and IR Kramer cables available at
www.kramerav.com/product/691
Specifications are subject to change without notice at www.kramerav.com