Panasonic AJHD1700P AJHD1700 User Guide - Page 122

RS-232C interface The VTR can be operated by commands when the RS-232C interface is used. (Refer to the command tables on page 125 and 126.) ∫ Condition for acknowledging commands from RS-232C interface Setup menu item No.204 (RS232C SEL): ON If the above condition is not met, [ACK]+[STX]ER001[EXT] is returned to the external component. Whether [ACK] is returned depends on the setting which has been selected for setup menu item No.209 (RETURN ACK). Hardware specifications External interface specifications • Connector pin specifications Connector: D-SUB 25-pin (crossover cable supported) Pin No. 1 2 Signal Description FG RXD Protective ground (frame ground) Received data (data is sent to PC) 3 TXD Transmitted data (data is received from PC) 4 CTS Clear to send (shorted with pin 5) 5 RTS Request to send (shorted with pin 4) 6 DTR Data terminal ready (no processing) 7 SG Signal ground 20 DSR Data set ready (+ voltage output after communication enable status) • Example of connection with controller (PC) (Using crossover connectors) PC side (D-SUB 25-pin connector) cable with D-SUB 25-pin VTR side FG 1 TXD 2 RXD 3 RTS 4 CTS 5 DSR 6 SG 7 DTR 20 1 FG 2 RXD 3 TXD 4 CTS 5 RTS 6 DTR 7 SG 20 DSR (Using crossover cable with D-SUB 9-pin and DSUB 25-pin connectors) PC side (D-SUB 9-pin connector) VTR side RXD 2 TXD 3 DTR 4 SG 5 DSR 6 RTS 7 CTS 8 1 FG 2 RXD 3 TXD 4 CTS 5 RTS 6 DTR 7 SG 20 DSR 122