ELSA Cable manual Registration

Technical basics 49

Synchronizing

Finding a channel in the broadband network

programs on their respective channels. Specific channels are also set up for the transmission of Internet content.

After being switched on, the cable modem searches the entire frequency band for a channel used by the provider to send information from the Internet. Because the bandwidth is so great, the first time the log-on procedure might take a while. As soon as the corresponding channel is found, the Sync LED on the ELSA MicroLink Cable flashes. The next time the cable modem is switched on, it will first look for the channel it found the previous time, and thus find the wanted information at a substantially faster rate. However, if the cable modem is used on another connection, it may have to search the entire frequency band again.

To speed up the search, providers can preset the ELSA MicroLink Cable to search the particular frequency bands that they normally use.

Do not change these settings yourself without consulting your provider.

Registration

Exchange of administration information between head- end and cable modem

When a channel for communication with the provider has been found, the headend gives a set of instructions to the cable modem that is important to the operation in the cable network. This process is called registration. It includes:

KThe confirmation of the found channel or the transfer to another channel

KThe allocation of an IP address that is valid in the cable network, along with a suitable netmask

KInformation on the provider’s server addresses

KThe current time

After the registration is completed successfully, the Reg’d LED on the ELSA MicroLink Cable lights up and the cable modem is ready to access the Internet.

ELSA MicroLink Cable