HDC-UHD Series User Guide779.9.3 RS-232C sending channelYou can set the destination(s) of the sending data in transmission mode.【See: 9.9.2 RS-232C operation mode】Menu C75: IN2C76: OUT2 onlyC77: All outputsC78: RS-232CWEB menu RS-232C SETTINGS → HDBT CONNECTION → TRANSMIT ENABLE →→ RS-232C→ HDBaseT IN2→ HDBaseT OUT ( OUT2, ALL )Setting value[Table 9.41] RS-232C sending channelSetting Front WEB browserEnabling RS-232C sending on Check box ON(RS-232C, HDBaseT IN2, HDBaseT OUT(OUT2, ALL))Disabling RS-232C sending[Default]oFF Check box OFF(RS-232C, HDBaseT IN2, HDBaseT OUT(OUT2, ALL))Select the connector(s) to be set from the following connectors:① HDBaseT input connector (IN2)② HDBaseT output connector (OUT2 only)③ HDBaseT output connector (All outputs)④ RS-232C connectorHDC-TH421UHD① ②③HDBaseTOUT2HDBaseTOUT3HDBaseTOUT4HDBaseTOUT5HDBaseTIN2RS-232C④ RS-232CcontrollerSwitch[Fig. 9.15] Receiving channelNote:Received data is not sent to the connector that receives the data.