PMD371 Professional 5 Disc CD Changer RS-232 Serial Control Owners Manual As found on pages 26-27 of the PMD371 User's Guide. Operations External Control (Serial Interface) RS232C The unit can receive external control signals by connecting a straight cable on the market to the D-sub 9 pin connector for RS232C external control. Data Packet A packet contains data from 5 to 8 bytes in length. In serial communication, ASCII code from 00h to 7fh is used. So the HEX data are converted into ASCII code and set to the data packet. The data packet includes CR code (0dh) at the end. Example 1: CD Play (Code: 20 53) [2] 32h [0] 30h [5] 35h [3] CR code 33h 0dh 5 byte English Pin Assignment of the Connector RS232C 5 1 9 6 1 2 3 4 5 6 7 8 9 NC RX TX NC GND NC NC NC NC Example 2: T.SIZE (Code 20 104 08) [2] [0] [1] [0] [4] [0] [8] CR code 0dh 8 byte 32h 30h 31h 30h 34h 30h 38h RS232C Physical Specification Cable Connector Baud rate Data bits Parity Stop bit Flow control Straight-type D-Sub 9 pin (Female type) 9600bps 8 bits None 1 bit None The unit can identify following commands on next page. 1 Operations · Remote Control Unit (RC4300CC) RC-5 Code The unit can be controlled through its infrared IR sensor on the front panel when it receives remote control signals that supports RC-5 signals as shown in the table on the following. These remote control (RC-5) codes can also be used if sent through the RS232C port found on the rear panel of the unit. Key No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Function POWER ON/STANDBY DISC 1 2 3 4 5 6 7 8 9 0 REPEAT (1/ALL) A-B (A<->B) RANDOM PROGRAM (PROG/REV) DELETE (DEL/REV) INTRO PLAY 2 PAUSE ; STOP 9 PREVIOUS (SKIP) NEXT (SKIP) § REW (SEARCH) 5 FF (SEARCH) 6 EDIT T.SIZE DIMMER (DISPLAY) TIME Code 20 12 20 30 20 01 20 02 20 03 20 04 20 05 20 06 20 07 20 08 20 09 20 00 20 29 20 59 20 28 20 36 20 49 20 43 20 53 20 48 20 54 20 33 20 32 20 50 20 52 20 104 20 104 08 20 71 20 11 ASCII Code 32h 30h 31h 32h 0dh 32h 30h 33h 30h 0dh 32h 30h 30h 31h 0dh 32h 30h 30h 32h 0dh 32h 30h 30h 33h 0dh 32h 30h 30h 34h 0dh 32h 30h 30h 35h 0dh 32h 30h 30h 36h 0dh 32h 30h 30h 37h 0dh 32h 30h 30h 38h 0dh 32h 30h 30h 39h 0dh 32h 30h 30h 30h 0dh 32h 30h 32h 39h 0dh 32h 30h 35h 39h 0dh 32h 30h 32h 38h 0dh 32h 30h 33h 36h 0dh 32h 30h 34h 39h 0dh 32h 30h 34h 33h 0dh 32h 30h 35h 33h 0dh 32h 30h 34h 38h 0dh 32h 30h 35h 34h 0dh 32h 30h 33h 33h 0dh 32h 30h 33h 32h 0dh 32h 30h 35h 30h 0dh 32h 30h 35h 32h 0dh 32h 30h 31h 30h 44h 0dh 32h 30h 31h 30h 44h 30h 38h 0dh 32h 30h 37h 31h 0dh 32h 30h 31h 31h 0dh · Acceptable RC-5 Code These RC-5 codes are not supported by remote control unit (RC4300CC), but they can also be used if sent through the RS232C port found on the rear panel of the unit. Key No. a b c d e f g Function POWER ON STANDBY DISC 1 DISC 2 DISC 3 DISC 4 DISC 5 Code 12 01 12 02 55 56 57 64 65 ASCII Code 32h 30h 31h 32h 30h 31h 0dh 32h 30h 31h 32h 30h 32h 0dh 32h 30h 35h 35h 0dh 32h 30h 35h 36h 0dh 32h 30h 35h 37h 0dh 32h 30h 36h 34h 0dh 32h 30h 36h 35h 0dh 20 20 20 20 20 20 20 2 English ...