Tx Rx Snr Cable Modem

A value well over 40 may mean you have too much power.

Tx rx snr cable modem.

Are the tx rx and lan cables connected to the idirect modem. If the rx level is under 25 dbm the signal to noise ratio snr is. Just remember that higher snr means cleaner signal. Ubr7246 show cable modem 000b 06a0 7116 cnr mac address ip address i f mac prim snr cnr state sid db 000b 06a0 7116 10 200 100 158 c6 0 u0 online 10 38 this command lists snr when using a c card.

The rx level is the power in dbm of the received signal. Ideally the rx level should be in the range of 18 to 25 dbm. The tx level is the power in decibels per milliwatt dbm at which a modem transmits its signal. For all modems docsis 3 0 3 1.

If you can ping the modem then telnet into the modem check the rx snr value along with arp table to check if lan is connected to the idirect modem. Check the led status at front panel of the idirect modem with the technician rx tx net. System uptime cable modem s internal time counter time since last power up or reset. Cable signal levels for all docsis cable modems require to be within the acceptable level for the modem operate properly.

When an s card is used and spectrum groups are assigned cnr is reported. Ip address ip address assigned to the modem not the cpe. This is the amount of signal received by the modem from the transmitter in the cable company head end. Dns name dns name for the cable modem not the dynamic dns name for the cpe.

This ip address 40 77 167 235 has been blocked for unusual usage patterns. The best way to determine if there are any problems with the cable signal levels that could affect the modems connectivity is to view the cable modem s signal power levels by accessing an interior screen. The server modems normally transmit at 13 dbm by default. Downstream power refers to the line signal sent from the cable provider to cable modem.

Typically cable modems show the downstream snr the upsteram snr can only be calculated at the remote end of the coax usually at the node. Cable modem signal levels for voip to work consistently well the connection to the cable modem should be stable and within certain signal db parameters. Try to ping the modem remotely. Rf mac mac address of the cable rf interface.