How to verify tie-line allocation on the CM9760-NW1 Network Interface Unit


Tie-lines not functioning properly due to possible installation error.

Product Line

Pelco Matrix


  • CM9700-NW1 version 9.03.010
  • CM9700-CC1 version 9.03.055


The actual tie-line used for any switch is difficult to predict because the NIU chooses the first available line. To aid in diagnostics and troubleshooting, a list of tie-lines can be displayed on a VGA monitor if one is connected to the CM9760-NW1.


To obtain the tie-line allocation list do the following:

Step 1: Hold the ALT and T keys to bring up a list of the first 16 tie-lines available.

Step 2: If more than 16 tie-lines are connected press the PAGE DOWN button to view them.