
NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens
Contents
Product Description, Lens Specs, Notes and Formulas Page 1
Projection Distances and Screen Sizes
Rear Projection Installation
Other Applications
Rear Projection Systems Page 3
Cabinet Dimensions
Top, Front and Right Side
Bottom, Back and Left Side
Control Codes
Product Description
Type: 3 panel, 1.3” p-Si TFT w/MLA LCD projector Dimensions: 11.1”(W) x 5.3”(H) x 16.9”(D) (w/lens installed)
Native Resolution: 1024 x 768 Weight: 17.4 lbs
Brightness: 3000 ANSI Lumens (2600 for MT1055) Manual Focus/Manual Zoom
MT10RL Lens Specifications
Throw Ratio: 1.0 : 1 (approx) Focal Length: 27mm
Offset Angle: 0
Screen Sizes: 40 – 300” Diagonal
°
F/#: 2.3
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.
The ceiling must be strong enough to support the LCD projector and the installation must be in accordance with any local
building codes.
• All calculations are based on 4:3 aspect ratio.
• Distances are in inches, for millimeters multiply by 25.4.
• Distances may vary ±5%.
Formulas
Units: Inches (for millimeters multiply final number by 25.4)
Definitions:
H = Horizontal Screen Width (4:3)
V = Vertical Screen Height (4:3)
C = Throw distance
α = Throw Angle
Projection Formulas:
C = 1.0190H – 2.468 H = Screen Diagonal x 4/5
°
V = Screen Diagonal x 3/5
α = 0
Screen Diagonal = H x 5/4
Screen Formulas (4:3):
v 3.0
Page 2
Page 4
Page 5
Page 6
(w/lens installed)
Page 1

NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens v 3.0
Projection Distance and Screen Size for Desktop (Rear Projection)
The following diagram shows the relationship between projector position and the screen.
Distances are in inches. For millimeters multiply by 25.4.
Desktop Setup
C
Throw Distance
Screen Ctr
Distance Chart
Diagonal Width Height
40" 32" 24" 30.1"
60" 48" 36" 46.4"
67" 53.6" 40.2" 52.2"
72" 57.6" 43.2" 56.2"
84" 67.2" 50.4" 66.0"
2.56"
Screen Size
Throw Angle = 0
Projector Foot
°
C
90" 72" 54" 70.9
100" 80" 60" 79.1"
120" 96" 72" 95.4"
150" 120" 90" 119.8"
180" 144" 108" 144.3"
Note: For screen sizes not indicated on the projection tables, use the formulas on page 1.
Page 2

NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens v 3.0
Other Applications using MT1055/1056 with optional MT10RL Rear Lens
Rear Projection Systems (contact third party manufacturer for these frame/mirror/screen kits)
Page 3

NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens v 3.0
Cabinet Dimensions
The following diagrams show the cabinet dimensions for the MT1055/1056 with optional MT10RL lens.
Dimensions are in inches. For millimeters multiply by 25.4.
4
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Page 4

NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens v 3.0
Cabinet Dimensions (continued)
The following diagrams show the cabinet dimensions for the MT1055/1056 with optional MT10RL lens.
Dimensions are in inches. For millimeters multiply by 25.4.
0
9
.
4
M
4
4
(
)
9.49
m
m
0
x
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10.24
9.45
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∅
2.70
1.18
2.36
3
.
2
5
5.63
2.36
3.98
Page 5

NEC Solutions (America), Inc.
Visual Systems
MT1055/1056 Installation Data
with Optional MT10RL Rear Lens v 3.0
Control Codes
Function Code Data
POWER ON 02H 00H 00H 00H 00H 02H
POWER OFF 02H 01H 00H 00H 00H 03H
INPUT SELECT RGB1 02H 03H 00H 00H 02H 01H 01H 09H
INPUT SELECT RGB2 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
INPUT SELECT PC CARD VIEWER 02H 03H 00H 00H 02H 01H 1FH 27H
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
ON SCREEN MUTE ON 02H 14H 00H 00H 00H 16H
ON SCREEN MUTE OFF 02H 15H 00H 00H 00H 17H
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 (DIN-8P)
To RxD of PC
678
345
12
To GND of PC
NOTE 1: Pins 2, 3, 5, 6 and 8 are used inside the projector.
NOTE 2: For long cable runs it is recommended to set communication speed within projector menus to 9600 bps.
Page 6
To TxD of PC