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Hardware Installation 
BusSecure User Manual 
 
10 
0150-0263A / May 2003 
2.4  I
NSTALLING 
C
AMERA 
A
SSEMBLIES
 
The BusSecure system will support up to four cameras (color and/or monochrome). Cameras supported 
by the BusSecure system can provide a 1.0 V pk-pk composite analog video signal, either NTSC or PAL, 
at 75 ohm (CCTV standard). 
2.4.1  I
NSTALLING 
S
URFACE
-M
OUNT 
C
AMERA 
A
SSEMBLIES
 
Surface-mount camera housings are typically mounted to the ceiling, but can be mounted to any flat 
vehicle surface. 
Note: In some installations, it is necessary to use a metal tapping plate behind the mounting surface. If a tapping plate is used, 
prepare it in the same way as the mounting surface (i.e., drill a cable entry hole and mounting holes in the appropriate locations). 
1)  Use the template in Appendix A to mark the location of the 
cable-entry hole and two mounting holes. See Figure 4. 
2)  Using a 3/16-inch (5 mm) (drill bit, drill the two mounting 
holes. 
3)  Using a 1-inch (25.4 mm) drill bit, drill the cable entry hole. 
4)  Install a 3/4-inch (20 mm) (interior diameter) grommet on 
the cable entry hole, or where feasible. 
5)  Connect the video and power cables to the camera,  
and feed the excess cable into the vehicle’s duct area. 
6)  Mount the camera and mounting plate to the vehicle  
surface (and tapping plate, if used). See Figure 5. 
7)  Refer to section 2.4.3 to align the camera’s field of  
view to the appropriate angle. 
8)  Secure the surface-mount housing to the mounting  
plate with the four 3/8-inch tamper-resistant  
tamper-torque machine screws provided, using a 
bit of blue locktite. See Figure 6.  
 
  Cable entry hole
 
  Mounting holes
 
Figure 4.  Mounting hole locations 
 
   
 
Figure 5.  Mounting plate installation 
 
Figure 6.  Surface-mount housing installation