Panasonic BT-LH2170 Operating Instructions - Page 62

REMOTE Specifications (continued) RS-232C input terminal External operations can be performed via the RS-232C interface. For details on the pin arrangement and RS-232C input terminal connections, refer to the diagram below and the table below right. For details on specific systems using RS-232C input terminals, contact your supplier. External Device Side (Straight) Device side „„Connectors and signals Connector: D-SUB 9-pin (female) Signal RS-232C input terminal (9 pins) Pin number 1 2 Signal N.C. RXD Pin number 1 Signal Description N.C. Not connected 3 TXD 4 DTR 5 GND 2 TXD Transmission data 6 DSR 3 RXD Reception data 7 RTS 4 DSR Connected inside 8 CTS 5 GND Ground 9 N.C. 6 DTR Connected inside 7 CTS Connected inside 8 RTS Connected inside „„Command format STX (02h) Command : Pin number 1 2 3 4 5 6 7 8 9 Signal N.C. TXD RXD DSR GND DTR CTS RTS N.C. Data ETX (03h) 9 N.C. Not connected „„Communication parameters Signal level RS-232C compliant • The command is the 3-character string starting with STX and ending with ETX. • Append any data after the colon (:) following the command, as required. Synchronous system Asynchronous system Transfer rate 9,600 bps Parity None Data length 8 bit „„Response formats 1. Setting command response STX (02h) Command ETX (03h) Stop bit 1 bit 2. Query command response Flow control None STX (02h) Data ETX (03h) 3. Error response STX (02h) Error codes ETX (03h) Error codes ER001: Invalid command ER002: Parameter error 62