Giới thiệu Feature 1. Interface: comply with EIA RS-232 and CCITTV.24 asynchronous protocol. 2. Connector: DB9 or DB9 connectors for both ends of your choice. 3. Transmission mode: asynchronous full duplex and fully transparent. 4. Isolation voltage: 500V continuous or 2,500 impulse. 5. Baud rate: maximum 57.6KBPS. 6. Power supply: one of TXD/DTR/RTS of RS-232 interface. 7.