NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
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-chip DLP projector, Brightness: 3100 Lumens
V311X: 0.55” DLP
V311W : 0.65” DLP
Resolution: V311X: 11024 x 768 Fan Noise: 37dB / 33dB @ 1meter
V311W : 1280 x 800
Dimensions: 12.2” (W) x 3.7” (H) x 9.7” (D) Weight: 5.5 lbs
Power Consumption: 278W (max) 948 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 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%.
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V311X/V311W Installation Guide
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
111316
6
6
8
8
D
α
wide - tele
degrees
Screen Size (4:3)
5
inches
3
B
C
wide - tele
inches
Ceiling Mounted and Desktop Rev 1.0
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: 4:3 Screen Formulas:
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) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
Distance Chart for popular 4:3 screens
Note: For screen sizes not indicated on the
projection tables, use the formulas on page 1.
www.necdisplay.com V311X/V311W Page 2 of 8
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Diagonal Width(W) Height (H)
inches inches inches inches
30 25 16 10 39 - 43 14.2 - 12.9
60 51 32 20 79 - 86 14.2 - 12.9
67 57 36 22 88 - 97 14.2 - 12.9
72 61 38 24 95 - 104 14.2 - 12.9
84 71 45 28 110 - 121 14.2 - 12.9
90 76 48 30 118 - 130 14.2 - 12.9
100 85 53 33 131 - 144 14.2 - 12.9
120 102 64 40 158 - 173 14.2 - 12.9
150 127 79 50 197 - 216 14.2 - 12.9
180 153 95 60 236 - 259 14.2 - 12.9
210 178 111 70 276 - 303 14.2 - 12.9
240 204 127 80 315 - 346 14.2 - 12.9
270 229 143 89 355 - 389 14.2 - 12.9
300 254 159 99 394 - 432 14.2 - 12.9
degrees
Screen Size (16:10)
4
inches
2
B
C
wide - tele
inches
D
α
wide - tele
4
5
6
6
7
81012
14
16
18
20
Ceiling Mounted and Desktop Rev 1.0
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: 16:10 Screen Formulas:
W = Image Width W = H x 16/10
H = Image Height (size) H = W x 10/16
B = Vertical distance between lens center and screen center Screen Diagonal = W x 18.868/16
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B = 0.391W
C (wide) = 1.55W
C (tele) = 1.70W
D = 0.078W
α (wide) = tanˉ¹ (B/C(wide))
α (tele) = tanˉ¹ (B/C(tele))
Distance Chart for popular 16:10 screens
Note: For screen sizes not indicated on the
projection tables, use the formulas on page 1.
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NEC Display Solutions of America, Inc.
Lens Offset From
Mount Pipe
B
C
Lens Ctr
Screen Ctr
Throw Distance
Screen Bottom
2.73"
C
Throw Distance
Screen Top
3.84"
9.11"
D
B
Lens Ctr
Screen Ctr
D
3.78"
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
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
www.necdisplay.com V311X/V311W Page 4 of 8
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
Cabinet Dimensions
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
www.necdisplay.com V311X/V311W Page 5 of 8
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
Cabinet Dimensions (continued)
The following drawings show the cabinet dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
www.necdisplay.com V311X/V311W Page 6 of 8
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
Optional Ceiling Mount Dimensions (Model #: NP01UCM)
The following drawings show the ceiling mount dimensions.
Dimensions are in inches. For millimeters multiply by 25.4.
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1 2
3 4
5
6 7 8
9
To GND of PC
To RxD of PC
To TxD of PC
To CTS of PC
To RTS of PC
NEC Display Solutions of America, Inc.
V311X/V311W Installation Guide
Ceiling Mounted and Desktop Rev 1.0
Input Panels
V311X/V311W
PC Control Codes
Function Code Data
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 COMPUTER2 02H 03H 00H 00H 02H 01H 02H 0AH
INPUT SELECT VIDEO 02H 03H 00H 00H 02H 01H 06H 0EH
INPUT SELECT S-VIDEO 02H 03H 00H 00H 02H 01H 0BH 13H
PICTURE MUTE ON 02H 10H 00H 00H 00H 12H
PICTURE MUTE OFF 02H 11H 00H 00H 00H 13H
SOUND MUTE ON 02H 12H 00H 00H 00H 14H
SOUND MUTE OFF 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.
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