A PC or other multimedia device could also be connected. The service module can support multiple units connected using a bus-based or star topology.
At the network end, the ADSL data and POTS connection are also connected by a splitter. To add ADSL support to an existing linecard is relatively simple as it only involves adding the digital data pathway and replacing / augmenting the line card with a splitter. This enables the service to be provided at a reasonable cost and without having to completely replace a switch.