Is there a way to control the signal on a serial interface simular to DDR? I'm working on a network that requires only one user on the network at a time (Half-Duplex). The problem is that when the router comes up, it starts sending packets, this sign...

Is there a way to control the signal on a serial interface simular to DDR?I'm working on a network that requires only one user on the network at a time (Half-Duplex). The problem is that when the router comes up, it starts sending packets, this signa...