Modems connect a network to its broadband service provider: cable modems that translate a coaxial internet connection into an Ethernet handoff a router or network can use. A modem is the single point where an entire site's internet connection either works or does not.
Match the modem to the internet service provider's supported model list and the service tier subscribed - a modem not on the provider's approved list can fail to provision even if it is technically compatible with the cable standard. Confirm the modem's throughput rating meets or exceeds the subscribed internet speed, since an undersized modem becomes the bottleneck regardless of what the rest of the network can handle. For sites that cannot tolerate downtime, keeping a spare provisioned modem on hand shortens recovery time if the primary unit fails. COLAMCO supplies broadband modems for the internet connectivity business, government, and education sites depend on.