Operating instructions

Chapter 4 Troubleshooting the Installation
46 72-4017315-01 Rev B
4 Is the upstream level or the ratio outside of the operating range?
 If yes, correct the upstream channel to the cable modem.
 If no, go to step 5.
5 Check the status of the CMTS.
6 Check the status of the CMTS signal on the node attached to the cable modem.