Communication device having pull up voltage supply circuit supplying pull up {TAIL ~ voltage} via one power supply during standby state and another power supply during {HEAD ~ power} on state 
Communication device having pull up voltage supply circuit supplying pull up { TAIL ~ voltage } via one power supply during standby state and another power supply during { HEAD ~ power } on state
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH