| 摘要 |
A two-way communication device has a master transmitter (SysM 1, TRM 1, SysM 2, TRM 2 ) connected to at least one slave transmitter (SysS 1, TRS 1, SysS 2, TRS 2 ) by an active connection wire. The master transmitter and the slave transmitter have a common reference (GND). The master transmitter can transmit a master signal (S 1 ) to the slave transmitter and the slave transmitter can transmit a slave signal (S 2 ) to the master transmitter. The master signal (S 1 ) is a digital modulation in voltage. The slave signal (S 2 ) is a digital modulation in current. |
