NEC NP-M271X Bedienungsanleitung
NEC Display Solutions of America, Inc.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 1 of 6
Contents
Product Description, Lens Specs, Notes and Formulas Pg 1
Diagrams & Distance Charts Pg 2
Cabinet Dimensions Pg 3-4
Ceiling Mount Dimensions Pg 5
Input Panel and Control Codes Pg 6
Product Description
Type: 3 panel LCD projector, Dimensions: 13.4” (W) x 3.9” (H) x 10.2” (D)
M271X 0.63” p-Si TFT w/MLA Weight: 6.4 lbs
M311X: 0.63” p-SI TFT w/MLA
Resolution: 1024x768
Fan Noise: M271X: 33 dB / 26dB @ 1 meter Brightness: M271X - 2700 Lumens
M311X: 33 dB / 26dB @ 1 meter M311X - 3100 Lumens
Power Consumption: M271X: 248W (max) BTU’s: M271X - 846.21 BTU/hour
M311X : 248W (max) M311X - 846.21 BTU/hour
Lens Specifications
Throw Ratio: 1.3 – 2.2:1 (for 100” diagonal) Focal Length: 17.5mm – 29.0mm
Offset Angle: M311X: 6.6° - 10.9° (for 100” diagonal) F/#: 1.7 - 2.1
Screen Sizes: 30” - 300” diagonal (4:3) Manual Focus/Manual Zoom
Notes
For screen sizes not indicated on the projection tables, use the formulas below.
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%.
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 for popular screen sizes on page 2:
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= 0.2578W
C(wide) = 1.366W – 1.77
C (tele) = 2.268W – 1.77
D= -0.117W
α(wide) = tan¯¹ (B/C(wide))
α(tele) = tan¯¹ (B/C(tele))
NEC Display Solutions of America, Inc.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 2 of 6
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
Distance Chart for popular 4:3 screens
Note: For screen sizes not indicated on the projection
tables, use the formulas on page 1.
Lens Offset From
Mount Pipe
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom
2.22"
C
Throw Distance Screen Top
4.56"
5.17"
D
B
Lens Ctr
Screen Ctr
D
2.79
Diagonal Width(W) Height (H)
inches inches inches inches
30 24 18 6 31 - 53 11.3 - 6.7
60 48 36 12 64 - 107 11.0 - 6.6
67 54 40.2 14 71 - 120 10.9 - 6.6
72 58 43.2 15 77 - 129 10.9 - 6.6
84 67 50.4 17 90 - 151 10.9 - 6.6
90 72 54 19 97 - 162 10.9 - 6.6
100 80 60 21 108 - 180 10.9 - 6.5
120 96 72 25 129 - 216 10.8 - 6.5
150 120 90 31 162 - 270 10.8 - 6.5
180 144 108 37 195 - 325 10.8 - 6.5
210 168 126 43 228 - 379 10.8 - 6.5
240 192 144 49 261 - 434 10.8 - 6.5
270 216 162 56 293 - 488 10.8 - 6.5
300 240 180 62 326 - 543 10.7 - 6.5
Screen Size (16:10)
-3
inches
BC
w ide - tele
inches
-28
degrees
Dα
w ide - tele
-6
-6
-7
-8
-8
-9
-11
-14
-17
-20
-22
-25
NEC Display Solutions of America, Inc.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 3 of 6
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.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 4 of 6
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
NEC Display Solutions of America, Inc.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 5 of 6
Optional Ceiling Mount Dimensions (Model #: M300CM)
The following drawings show the ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
NEC Display Solutions of America, Inc.
M271X/M311X Installation Guide
Ceiling Mounted and Desktop Rev 1.0
www.necdisplay.com M271X, M311X Page 6 of 6
Input / Output Panel
PC Control Codes
Function CodeData
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT COMPUTER1 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT COMPUTER21 02H 03H 00H 00H 02H 01H 02H 0AH
INPUTSELECTHDMI 02H 03H 00H 00H 02H 01H 1AH 22H
INPUTSELECTVIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUTSELECTS-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
INPUTSELECTVIEWER 02H 03H 00H 00H 02H 01H 1FH 27H
INPUT SELECT NETWORK 02H 03H 00H 00H 02H 01H 20H 28H
INPUT SELECT USB DISPLAY 02H 03H 00H 00H 02H 01H 22H 2AH
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
PROJECTOR INFORMATION REQUEST 00H BFH 00H 00H 01H 02H C2H
ERROR STATUS REQUEST 00H 88H 00H 00H 00H 88H
INFORMATION REQUEST 03H 8AH 00H 00H 00H 8DH
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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