User`s guide
Wiring the DVR 
All TR9 wiring harnesses plug into connectors on the termination panel of the docking 
tray. The termination panel must be removed from the docking tray to connect the 
wiring harnesses. Follow the instructions on page 7 of this manual to remove the 
termination panel and to install the cable grommet and hole plug in the docking tray 
access holes. 
  NOTE: Audio input jacks 1 and 2 are connected in parallel with the audio inputs of 
cameras 1 and 2, respectively. If you connect remote microphones to the audio input 
jacks, the audio signals from the camera harness must be disconnected inside the 
camera. See the 
Camera Harness section of this manual on page 9 for details. 
The wiring harnesses enter the docking tray through one of the cable access holes. 
Leave enough slack in the cables to allow the termination panel to be removed with the 
harnesses attached. 
The wiring harnesses can be surface mounted or concealed. If a harness is surface 
mounted, ensure that it is secured at frequent points and protected from sharp corners.  
If a harness is concealed, pull it from the un-terminated end to minimize the size 
requirements of conduits and access holes. 
The standard wiring harness length is 20 feet (6m) long. Please contact Seon Design if 
you need a longer harness. 
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