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NEC Solutions (America), Inc. 

Visual Systems Division 

LT280 Installation Guide 

Ceiling Mounted and Desktop 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rev 1.1 

www.necvisualsystems.com

                                                                                  

 

 

 

 

  

 

LT280       

       

Page 3 of 6 

 

Cabinet Dimensions

 

The following drawings show the cabinet dimensions. 
Dimensions are in inches. For millimeters multiply by 25.4. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Lens center

Lens center

11.39

11.34

2.81

11.57

4.72

2.54

(FOOT)

2.30 (boss)

4.76

0

.7

0

(L

EN

S MAX)

0.78

(LE

N

S

 MIN)

5.01

1.53

7.10

ventilation

Summary of Contents for MultiSync LT280

Page 1: ...on 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 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 scre...

Page 2: ...ection tables use the formulas on page 1 Screen Size 4 3 Diag W H inches inches inches inches inches 30 24 18 7 2 60 48 36 14 4 72 57 6 43 2 17 5 84 67 2 50 4 20 5 90 72 54 21 6 100 80 60 24 6 120 96 72 29 7 150 120 90 36 9 180 144 108 43 11 200 160 120 48 12 250 200 150 60 15 300 240 180 72 18 B C wide tele D α wide tele inches degrees 34 41 9 8 11 9 69 84 9 6 11 7 83 102 9 6 11 6 98 119 9 6 11 6...

Page 3: ... 1 1 www necvisualsystems com LT280 Page 3 of 6 Cabinet Dimensions The following drawings show the cabinet dimensions Dimensions are in inches For millimeters multiply by 25 4 Lens center Lens center 11 39 11 34 2 81 11 57 4 72 2 54 FOOT 2 30 boss 4 76 0 70 LENS MAX 0 78 LENS MIN 5 01 1 53 7 10 ventilation ...

Page 4: ...visualsystems com LT280 Page 4 of 6 Cabinet Dimensions continued The following drawings show the cabinet dimensions Dimensions are in inches For millimeters multiply by 25 4 3 M4 8 max Lens center 2 85 6 85 1 83 3 60 7 28 0 98 for Ceiling Mount Lamp security slot ventilation ventilation 8 22 1 15 AC input Power Switch ...

Page 5: ...Guide Ceiling Mounted and Desktop Rev 1 1 www necvisualsystems com LT280 Page 5 of 6 Optional Ceiling Mount Dimensions Model VL80CM The following drawings show the ceiling mount dimensions Dimensions are in inches For millimeters multiply by 25 4 8 62 2 71 2 99 3 35 8 74 ...

Page 6: ...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 Note Contact your NEC rep for codes not listed Cable Connection Communication Protocol Baud Rate 38400 bps for cable lengths longer than 20 it is recommended changing to 9600 bps in setup menu Data Length 8 bits Parity No Parity Stop Bit One ...

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