NEC PH3501QL - Page 159

142
8. Appendix
Inside Projector
Voltage applied across the pins of Ext_GPIN_P and Ext_GPIN_N
should be in the range from 3.3 Vdc to 10 Vdc.
Recommended Operating Current: 5 mA
Absolute Maximum Rating: 23 mA
Resist = 360 Ω
Photo-coupler
Forward direction voltage: 1.1 V (@5 mA)
GP I/O Connector
Pin No.: 5 6 7 8
Pin No.: 24 25 26 27
Ext_GPIN_P
Ext_GPIN_N
UsingGPIOControl
Momentary“ON”pulseenablesyoutocontrolprojector.Toenable“ON”pulse,holditforatleast300ms.Hold“OFF”
foratleast300msbefore“ON”.(→page143)
HereisfunctionlisttocontrolprojectorbyusingGPIOport.
Photo-couplerON/OFF Function
8-27 7-26 6-25 5-24
The following functions apply depending on the combination of input
terminals.
OFF OFF OFF ON
PowerON
OFF OFF ON OFF PowerOFF
OFF OFF ON ON ShutterCLOSE
OFF ON OFF OFF ShutterOPEN
OFF ON OFF ON SelectHDMI1
OFF ON ON OFF SelectDisplayPort1
OFF ON ON ON SelectSDI1
ON OFF OFF OFF SelectSDI2
ON OFF OFF ON SelectSDI3
ON OFF ON OFF SelectSDI4
ON OFF ON ON SelectHDBaseT
ON ON OFF OFF SelectSLOT
ON ON OFF ON SelectHDMI2
ON ON ON OFF SelectDisplayPort2
ON ON ON ON reserved
ExampleforsettingtheshuttertoCLOSE:InputONto6-25and5-24while8-27and7-26areOFF.
NOTE:
• TheoperationcommandcomingfromGPI/Oportwillbecanceledwhentheprojectorisprocessingothertasks.
• Setallotherpinsthanthoseinuseto“OFF”.
• Theoperationcommandisexecuteduponcontinuousinputofthe“ON”pulseforapproximately300ms.