Videolarm qfdpt3-50na 用户指南

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NOTE:  This hi-res color camera uses a 1/4" chip and a 3-6mm 

             auto iris lens. It is comparable to a 1/3" chip using a 

             4-9mm auto iris lens.

The operational settings are defi ned by four dip switches located on 

the side of the PC Board (Figure 12 and 13). Moving the switches to 

the UP position will activate specifi c settings. Refer to the chart below. 

Figure 12

Auto Iris 
Adjustment 
Screw

Dip Switches

Figure 13

Dip Switch                  UP                                DOWN

  1 

  (Iris)                     Auto Iris On               Position for Fixed Lens

  2 

  (Flickerless)        Shutter speed                    Normal

                              fi xed at 1/100 sec.                  

  3 (Back Light       ON                                    Normal

  Compensation

  4 

  (Synch Mode)      Internal Synch               Line Lock Mode

FIXED AND FIXED VARI-FOCAL LENSES. There are no user adjust-
able settings on these units (Figure 14)
AUTO IRIS LENSES: The auto iris can be adjusted if needed. See the 
Troubleshooting section for instructions.

Figure 14

Auto Iris
adjustment 
screw

1.  When the desired focus is achieved for each camera, adjust the 

     segmented bracket arms to the desired viewing angle. Once 

     you've fi nished, put the dome back in place and check to be sure 

     none of the cameras touch the dome. If one or more do, 

     readjust the arm(s) until they are clear of the dome. 

2.  Reattach the dome by putting it in place, turning clockwise until it 

     locks, and then tightening the locking screws.

The cameras included in the Q-View™ series have the option of  
transmitting video signals to NVT receivers via unshielded twisted 
pair cable. You must purchase the receiver separately. Instructions for 
connecting the receiver end of the the unshielded twisted pair cable 
will be included with the NVT receiver. Following are instructions for 
connecting the unshielded twisted pair cables to the RJ45 (Cat. 5) 
cable running outside your housing.

UNSHIELDED TWISTED PAIR 
VIDEO WIRING

1. Video for all four cameras is contained in the one RJ45 (Cat. 5) 
    cable. An RJ45 female coupling is provided so that all connections 
    can be made with an RJ45 connector. The following is the wiring 
    diagram for the four twisted pair wires that are included with the 
    Cat. 5 cable.

2.  Connect the other end of the unshielded twisted pair cable to the 
     NVT receiver.  
     CAUTION:  The unshielded twisted pair video signal is polarity
                         dependent. The positive video wire for each camera   
                         MUST be connnected to the postitive terminal on the 
                         NVT receiver, and negative MUST be connected to 
                         negative.
3.  When using unshielded twisted pair cable you DO NOT need the 
     BNC connector.  All four BNC connectors are provided inside the 
     housing for testing purposes. Be sure that there is no video con-
     nection other than the unshielded twisted pair cable.  

NOTE:  The customer must purchase the Video Transceiver from 
             NVT.  Part numbers are:
                       • NV-212A (500 ft.)
                       * NV-213A or NV-213A-M (1000 ft.)
                       • NV-652R, NV-862R, or NV-1662R (3000 ft.)

  1        White/Green               Camera 1 +

  2        Green                         Camera 1 -

  3        White/Orange             Camera 2 +

  6        Orange                       Camera 2 -

  5        White/Blue                  Camera 3 +

  4        Blue                            Camera 3 -

  7        White/Brown               Camera 4 +

  8        Brown                         Camera 4 -