| 摘要 |
A data control system for a local area network (100) prevents non-point of sale devices (135,155) from sending data to point of sale devices (125,145) on the local area network (100) but allows non-point of sale devices (135,155) to send data to other non-point of sale devices (135,155) on the local area network. The data control system may define a non-point of sale network (130,150) within the local area network (100) and determine the data is from the non-point of sale network (130,150) if the data is associated with a service set identifier or a port corresponding to the non-point of sale network (130,150). The data control system may also prevent wireless non-point of sale devices (135) from sending data to wired non-point of sale devices (155) and prevent wired non-point of sale devices (155) from sending data to wireless non-point of sale devices (135). |
