Pelco TW3004AR User Manual

Page of 20
 
C1667M (6/06)
9
 
SETTING THE DIP SWITCHES
 
The factory default switch positions are shown in Figure 3. Switches 2-5 are set to auto and switch  
is set to H mode. These settings ensure that the adaptive technology in the TW3004AR automatically 
adjusts the low, medium, and high frequency components of the video signal, allowing for the best 
possible video transmission.
 
Figure 3.  
 
Default Switch Positions
 
You can override the adaptive technology by setting one of the switches (2, 3, 4, or 5) to a particular 
distance (1K, 2K, 3K, or 4K). For example, if you want to transmit video up to 1,000 feet (305  meters) 
of UTP cable, set switch 2 to 1K. You can set only one distance at a time. 
The H (high) and L (low) modes are available only when switches 2-5 are set to automatic. High mode 
is the default position and is used when the video output into a 75-ohm terminator is greater than or 
equal to 1 Vp-p. Low mode should be used when the video output into a 75-ohm terminator is less 
than 1 Vp-p.