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www.xpandvision.com

Operation

Overview

The main goal of the XPAND Passive 3D Polarization Modulator Gen2 unit is to modulate the light coming from the projector in a way which 
enables 3D viewing when using circular polarized passive 3D glasses. The modulation must be done in synchronization with the projector. 
To achieve this synchronization a 3D synchronization signal is fed from the projector to the modulator using one of the cables supplied 
with the modulator.
Much of the modulator’s operation can be configured over the network by using a dedicated PC-based configuration utility. See the 

Modu-

lator Configuration Using the PC Based Configuration Utility

 section of this manual for more information.

Factory Reset

At any time the XPAND Passive 3D Polarization Modulator Gen2 can be reset to its factory default settings by following these steps:
(1) Unplug all cables from the modulator.
(2) Short pins 3 and 4 of the unit’s GPIO port.
(3) Plug the power back into the modulator.
(4) Both LEDs on the unit should now be flashing quickly, indicating that a factory reset is about to be done.

 

»

To confirm the factory reset, remove the short circuit between pins 3 and 4. The modulator will make two more slow flashes 
with both LEDs to indicate, that a reset has been made.

 

»

To abort a factory default reset, unplug the power cord from the modulator and 

only then

 remove the short circuit.

A reset is especially useful when performing network settings configuration if a mistake is made. A Factory Reset will return the modulator 
to its factory default settings, making the modulator again accessible at its default IP of 192.168.0.250.
Note that network settings of the unit will be reset as well so if its settings have been previously modified the modulator will now no longer 
be reachable and the network settings should be reconfigured. See section 

Unit’s Initial Network Settings Configuration

 for more 

information.

Modes of Operation

The modulator operates in one of two modes: 2D mode or 3D mode. As their names suggest, the 3D mode is intended for watching 3D 
content and 2D mode for viewing 2D content at which point the modulator should be removed from in front of the projector.
Which mode the modulator is operating in is determined by different conditions which depend on which mode control source is selected. 
See section 

Mode Control Sources

 for more information.

The modulator signals if it is in 2D or 3D mode through its SYNC / 3D MODE LED, through its Motion Control Output and through the opera-
tion of its cooling fan. For more information see sections 

LED Indications

Motion Control Output

 and 

Cooling Fan

.

2D Mode

In 2D mode the modulator stops modulating its LC shutter, turns off the cooling fan and sets its Motion Control Output to 2D state (see 
section 

Motion Control Output

 for more details). A 2D state on the Motion Control Output triggers the movement of the unit away from the 

projector, if mounted onto a motorized mount connected to this output.
In 2D mode the SYNC/3D MODE LED state depends on which mode control source is currently selected. See 

LED Indications

 and 

Mode 

Control Sources

 sections of this manual for more information.

While in 2D mode, the unit continuously scans for conditions to transition to 3D mode. These conditions depend on which mode control 
source is selected - refer to section 

Mode Control Sources

.

3D Mode

In 3D mode the modulator turns on its cooling fan and sets its Motion Control Output to 3D state (see section 

Motion Control Output

 for 

more details). A 3D state on the Motion Control Output triggers the movement of the unit in front of the projector, if mounted onto a motorized 
mount connected to this output.
If a valid 3D synchronization signal is fed from the projector to the modulator, the unit starts modulating its LC shutter and normal 3D viewing 
is possible. Validity of the signal is determined by f

smin

 (3D Sync Low Threshold Frequency) and f

smax

 (3D Sync High Threshold Frequency). See 

macros descriptions in section 

Network Mode Control Source

 and section 

Using the Configuration Utility

.

Summary of Contents for Passive 3D PolarizationModulator Gen2

Page 1: ...to be used on dark background to be used on light background XPAND Passive 3D Polarization Modulator Gen2 User Manual User Manual...

Page 2: ...ion 9 Installation 9 Motion Control Setup Wizard 10 Unit s Initial Network Settings Configuration 10 Recommended Projector Settings for XPAND Passive 3D Cinemas 12 Modulator Configuration Using the PC...

Page 3: ...he product Use of XPAND s Passive 3D Polarization Modulator Motorized Mount is strongly recommended Make sure that the modulator is never positioned in front of the projector when viewing 2D content A...

Page 4: ...s for connecting the unit to the projector 1 Ethernet Crossover Cable 1 User Manual WARNING The supplied Ethernet Crossover Cable should not be used as a regular network cable It is intended primarily...

Page 5: ...ING 1s ON 1s OFF The unit s mode control source is set to frame sync it is in 2D mode and scanning for a condition to transition into 3D mode This condition is a valid 3D synchronization signal on the...

Page 6: ...ion Modes of Operation The modulator operates in one of two modes 2D mode or 3D mode As their names suggest the 3D mode is intended for watching 3D content and 2D mode for viewing 2D content at which...

Page 7: ...mode is to monitor the 3D synchronization signal line coming from the projector for the presence of a valid synchronization signal This signal comes into the modulator through its GPIO connec tor If a...

Page 8: ...or to 3D mode modctrls n mode 3D Command Parameter Value Description mode 2D 3D Sets the currently active mode based on the input parameter value Note This command only takes effect if the Network Mod...

Page 9: ...r on the projector and to the 9 pin GPIO connector on the back of the modulator Two cables are supplied with the modulator Choose the correct one based on the available connectors on the projector 5 I...

Page 10: ...s lamp cannot reach the modulator by placing a non transparent light barrier between the projector and the modulator Alternatively the lamp on the projector can be turned off or if the projector allow...

Page 11: ...he IP is reserved network configuration is finished If however more modulators will be connected to the same network this unit s IP must be changed since each modulator requires a unique IP Proceed to...

Page 12: ...u PC network settings you may have changed in step 5b If an automatic connection attempt is not made by the utility initiate it manually by clicking the Get Device State button Once a successful conne...

Page 13: ...one The section features the following controls Select Device drop down list Used to select a device to connect to from a list of devices known to the utility Devices must be added manually See Add ne...

Page 14: ...Frequency Reports whether a synchronization signal is detected on the modulator s 3D sync GPIO input Validity of the signal and its frequency are reported Whether a signal is valid or not is determin...

Page 15: ...cy on the modulator enter a new value and press the Enter key to confirm the change The Menu Bar Most of the menu s items are self explanatory and intuitive However the following submenu items deserve...

Page 16: ...sure the filter is completely dry before inserting it back into the unit Remove the protective cover and plug the power jack back into the modulator If the filter shows sign of wear it should be repla...

Page 17: ...s or people with family members who have experienced such symptoms should consult their physician before viewing 3D media We recommend that Parents or Guardians observe their children while the childr...

Page 18: ...void the user s authority to operate it This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 t...

Page 19: ......

Page 20: ...to be used on dark background to be used on light background...

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