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BusSecure User Manual 
DVR Installation and Wiring 
 
 
0150-0263A / May 2003 
17 
3.2  W
IRING THE 
DVR 
All wire connections between the DVR and auxiliary devices are made through the DVR’s Rear Panel 
Assembly (see Figure 22).  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3.2.1.1  P1 T
ERMINAL 
B
LOCK 
C
ONNECTIONS 
(L
OWER 
C
ONNECTOR
The P1 terminal block provides power to the vehicle’s cameras. 
1)  Remove the P1 terminal block (
 in Figure 22) from the rear panel assembly by loosening its 
mounting screws and pulling it out of its socket. 
2)  Make connections as shown in Figure 23. To make connections, strip each wire 3/8 of an inch, 
insert it into the appropriate slot, and tighten the terminal screw. 
3)  Reinstall the P1 terminal block. 
 
1  2  3  4  5  6  7  8  9  10  11 12  13  14  15  16  17  18  19  20 
P2
GND
CAM1
ETHERNET
  10/100
POWER
FUSE
CAM2
CAM3
CAM4
P1
 
  Ethernet connector  (Use of this connector is optional) 
 
  Four-pin Molex  (power management board) 
 
  BNC connectors (Video inputs Cam 1 – Cam 4) 
 
  P2 Terminal Block (Alarm inputs/outputs, status indication, and impact sensor) 
(Upper Connector) 
 
  P1 Terminal Block (Camera connections) (Lower Connector) 
 
Figure 22. DVR Rear Panel Assembly connections 
CAUTION: 
Be very careful that you do not confuse the P1 terminal block with the P2 terminal block. The P2 
terminal block is positioned above the P1 terminal block. The P1 terminal block is used strictly for 
camera connections; the P2 terminal block is used strictly for input/output wiring.