The TD301D232H/TD501D232H series of isolated single high speed 232 transceivers are all-in-onemodules with isolated power supply, isolated signal and RS232 transceiver chip integrated in oneRS232 interface solution. The main product function is to switch from logic level to 232protocols leveland achieving signal isolation and the product features a constant-voltage source isolated powelsupply which withstands a test voltaae of 3000 c, The products also can easily be embedded in theuser's end eauipment, to achieve fully functional RS232protocols network connections