And thanks to the wireless mesh network, the panel in each room also ACTS as a relay for the data traffic from other rooms back to a central control point.
而且由于无线网状网络，每个房间的面板也担当了从其它房间回到中心控制点的数据通信的中继。
2
Relay output is used for the computer panel, medial relay is not necessary, reduced malfunctions and make maintain and inspecting convenient...
电脑板采用继电器输出，无需中间继断器减少了故障点，维修检测方便。
3
Cost became another issue, for in spite of the low cost of the relay itself, the installed cost of the panel could be quite high.