NEC NP-VE281 Manual de usuario
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 1 of 8
Contents
Product Description, Lens Specs, Notes Pg 1
Formulas Pg 2-3
Diagrams & Distance Charts Pg 4
Cabinet Dimensions Pg 5-6
Ceiling Mount Dimensions Pg 7
Input Panels and Control Codes Pg 8
Product Description
Type: 1-chipDLPprojector,
VE281/VE281X: 0.55” DLP
VE282B/VE282XB: 0.55” DLP
Brightness: VE281/VE281X 2800 lumens
VE282B/VE282XB: 2800 lumens
Resolution: VE281/VE282 800 x 600 Fan Noise: VE281/VE281X: 35dB / 33dB @ 1meter
VE281X/VE282XB: 1024 x 768 VE282B/VE282XB: 35dB / 33dB @ 1meter
Dimensions: 12.2” (W) x 3.7” (H) x 9.7” (D) Weight: 5.1 lbs
Power Consumption: VE281/VE281X: 261W (max) BTU’s: VE281/VE281X: 890.57 BTU/hour
VE282B/VE282XB: 261W (max) BTU’s VE282B/VE282XB: 890.57 BTU/hour
Lens Specifications
Throw Ratio: 1.9 – 2.1:1 (for 100” diagonal) Focal Length: 21.8mm – 24.0mm
Offset Angle: 12.8° - 14.0° (for 100” diagonal) F/#: 2.41 - 2.55
Screen Sizes: 30” - 300” diagonal (4:3) Manual Focus/Manual Zoom
Notes
For screen sizes not indicated on the projection tables, use the formulas on the following page.
If the figures on the tables do not match the results of formulas, use the figures in the table.
All calculations are based on a 4:3 aspect ratio.
Distances are in inches, for millimeters multiply by 25.4.
Distances may vary 5%.
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 2 of 8
Formulas
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for “W” in
the Projection Formulas.
Refer to the diagrams and charts below for popular screen sizes:
Definitions: 4:3ScreenFormulas:
W = Image Width W = H x 4/3
H = Image Height (size) H = W x 3/4
B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B= 0.487W
C(wide) = 1.94W
C (tele) = 2.165W
D= 0.112W
α(wide) = tan¯¹ (B/C(wide))
α(tele) = tan¯¹ (B/C(tele))
Distance Chart for popular 4:3 screens
.
Note: For screen sizes not indicated on the projection tables, use the formulas on above
Diagonal Width(W) Height (H)
inches inches inches inches
30 24 18 12 46 - 52 14.1 - 12.7
60 48 36 23 93 - 104 14.1 - 12.7
67 53.6 40.2 26 104 - 116 14.1 - 12.7
72 57.6 43.2 28 111 - 125 14.1 - 12.7
84 67.2 50.4 33 130 - 146 14.1 - 12.7
90 72 54 35 139 - 156 14.1 - 12.7
100 80 60 39 155 - 173 14.1 - 12.7
120 96 72 47 186 - 208 14.1 - 12.7
150 120 90 58 232 - 260 14.1 - 12.7
180 144 108 70 279 - 312 14.1 - 12.7
210 168 126 82 325 - 364 14.1 - 12.7
240 192 144 94 372 - 416 14.1 - 12.7
270 216 162 105 418 - 468 14.1 - 12.7
300 240 180 117 465 - 520 14.1 - 12.7
19
22
24
27
9
11
13
16
6
6
8
8
Dα
w ide - tele
degrees
Screen Size (4:3)
5
inches
3
BC
w ide - tele
inches
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 3 of 8
Diagrams and Distance Charts
The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of
installation.
Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
Desktop
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 4 of 8
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 5 of 8
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
Optional Ceiling Mount Dimensions (Model #: NP01UCM)
The following drawings show the ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
NEC Display Solutions of America, Inc.
VE281/VE281X/VE282B/VE282XB Installation Guide
Ceiling and Desktop Mounted Rev 1.0
www.necdisplay.com VE281/VE281X/VE282B/VE282XB Page 6 of 8
Input Panels
VE281/VE281X
VE282B/VE282XB
PC Control Codes
Function CodeData
POWERON 02H 00H 00H 00H 00H 02H
POWEROFF 02H 01H 00H 00H 00H 03H
INPUT SELECT COMPUTER1 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT HDMI 02H 03H 00H 00H 02H 01H 1AH 22H
PICTUREMUTEON 02H 10H 00H 00H 00H 12H
PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H
SOUND MUTE ON 02H 12H 00H 00H 00H 14H
SOUNDMUTEOFF 02H 13H 00H 00H 00H 15H
Note: Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol:
Baud Rate: 38400 bps
Data Length: 8 bits
Parity: No Parity
Stop Bit: One Bit
X on/off: None
Communications: Full duplex
PC Control Connector (D-Sub 9P
NOTE 1 : Pins 1, 4, 6, and 9 are used inside the projector.
NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
NOTE 3: Jumper “Request to Send” and “Clear to Send” together on both ends of the cable to simplify cable connection.
12345
67 8 9
To GND of PC
To RxD of PC
To TxD of PC
To CTS of PC
To RTS of PC
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