NEC 40,000-Lumen 4K Laser Installation Projector User Manual
Page 177
160
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 GP I/O 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”. (
→
)
Here is function list to control projector by using GP I/O 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 GP I/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.