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NEC Mcu 5000a Multipoint Control Unit Equipment Manual

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    							NECA 340-414-210 Revision 2.0 Page 1 of 4
    MCU 5000A Multipoint Control Unit INP-003
     OPEN/REMOVE FRONT COVER
    GENERAL: 
    This procedure describes how to open and remove front cover of the MCU 
    5000A.
    APPARATUS: 
    Phillips Type 
    Screwdriver 
    SUPPORT DATA: 
    None
    STEP PROCEDURES
    1 If cover is already open, go to Step 4.
    2 Using index fingers, slide the locking knobs of front cover to inside.  (See Fig. 1 (a), (b))
    3WARNING:  
    FRONT COVER SHOULD BE LOWERED (180°) WITH BOTH HANDS.  
    ALLOWING COVER TO DROP FREELY MAY DAMAGE COVER OR EQUIPMENT BELOW.
    Using both hands, carefully lower front cover (180°).  (See Fig. 1(c))
    4 Is front cover removed?
    If YES
    , go to Step 5
    .
    If NO
    , go to Step 9
    .
    5 Remove the earth wire by Phillips type screwdriver.  (See Fig. 2)
    6 Using both hands, lift front cover approximately 30°.  (See Fig. 3)
    7 While  holding   front  cover  with both hands,  slide   the  front  cover  to left,  and  the  right  hinge 
    comes off.
    8 Lift front cover upward, and remove it from shelf.  (See Fig. 4)
    9 End of procedure. 
    						
    							Page 2 of 4 NECA 340-414-210 Revision 2.0
    INP-003 MCU 5000A Multipoint Control Unit
    Figure 1:   Opening Front Cover
    (a)  Unlock Front Cover
    (b)  Slide the Locking Knobs to Inside
    (c)  Open Front Cover 
    						
    							NECA 340-414-210 Revision 2.0 Page 3 of 4
    MCU 5000A Multipoint Control Unit INP-003
    Figure 2:   How to Remove Earth Wire
    Figure 3:   How to Remove Cover out of Right Hinge (1) 
    Figure 4:   How to Remove Cover out of Right Hinge (2) 
    RIGHT HINGECOVERABOUT
    30°
    RIGHT HINGE FRONT COVER 
    						
    							Page 4 of 4 NECA 340-414-210 Revision 2.0
    INP-003 MCU 5000A Multipoint Control Unit
    This page is for your notes. 
    						
    							NECA 340-414-210 Revision 2.0 Page 1 of 4
    MCU 5000A Multipoint Control Unit INP-004
    INSTALL/CLOSE FRONT COVER
    GENERAL: 
    This procedure describes how to install and close front cover of the MCU 
    5000A.
    APPARATUS: 
    Phillips type Screwdriver
    SUPPORT DATA: 
    None
    STEP PROCEDURES
    1 If cover is installed but open, go to Step 8
    .
    2 Grasp cover’s right and left sides with both hands.
    3 Insert the hinge pin under the left side of front cover to holder of shelf.  (See Fig. 1.)
    4 Lift front cover approximately 30°.
    5 While holding front cover with both hands, insert the hinge pin under the right side of front cover 
    to holder of shelf.  (See Fig. 2.)
    6WARNING:  ALLOWING FRONT COVER TO DROP FREELY MAY DAMAGE COVER OR 
    EQUIPMENT BELOW.
    Using both hands, carefully lower front cover (180°).
    7 Connect an earth wire to front cover by screw.  (See Fig. 3.)
    8 Is front cover closed?
    If YES
    , go to Step 9
    .
    If NO
    , go to Step 10
    .
    9 Raise cover using index fingers, slide the locking knobs to outside of front cover.  (See Fig. 4.)
    10 End of procedures. 
    						
    							Page 2 of 4 NECA 340-414-210 Revision 2.0
    INP-004 MCU 5000A Multipoint Control Unit
    Figure 1:   Inserting the Left Side Hinge Pin of Front Cover
    Figure 2:   Inserting the Right Side Hinge Pin of Front Cover
    FRONT COVER
    RIGHT HINGE FRONT COVER
    ABOUT
    30°
    ABOUT
    30° 
    						
    							NECA 340-414-210 Revision 2.0 Page 3 of 4
    MCU 5000A Multipoint Control Unit INP-004
    Figure 3:   Connecting the Earth Wire
    EARTH WIRE
    EARTH TERMINAL 
    						
    							Page 4 of 4 NECA 340-414-210 Revision 2.0
    INP-004 MCU 5000A Multipoint Control Unit
    Figure 4:   Locking the Knobs of Front Cover 
    						
    							NECA 340-414-210 Revision 2.0 Page 1 of 2
    MCU 5000A Multipoint Control Unit INP-005
    TURN ON/OFF POWER SWITCH
    GENERAL: 
    This procedure describes instruction for turning ON/OFF Power Switch.
    APPARATUS: 
    None
    SUPPORT DATA: 
    INP-003, INP-004
    Figure 1:   Turn ON/OFF Power Switch
    STEP PROCEDURES
    1 Open front cover of MCU 5000A.
    2 Is the power switch turned ON or OFF?
    If ON
    , go to Step 3
    .
    If OFF
    , go to Step 4
    .
    3 Turn power switch to ON position.  Verify that power lamp (green, marked PWR) lights.
    4 Turn power switch to OFF position.  Verify that power lamp goes out.
    5 End of procedure.
    MON
    CONFB A
    LMT    MON
    OFFON
       MEM
    POWER SWITCH
    MCU 5000A
    PWR 
    						
    							Page 2 of 2 NECA 340-414-210 Revision 2.0
    INP-005 MCU 5000A Multipoint Control Unit
    This page is for your notes. 
    						
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