| 摘要 |
A communication signal distribution unit includes a plurality of input ports for receiving incoming communication signals, a plurality of outlet ports for providing communication signals to electronic devices, a display for viewing information; and a set of keys for selecting one of the outlet ports, for entering a time to disable the communication signal provided by the selected output port, and for entering a time to re-enable provision of the communication signal at the selected output port. A 911 lock permits emergency calls through a disabled port. Programming methods are included. |
