English
Operations
External Control (Serial Interface) RS232C
The unit can receive external control signals by connecting a straight cable on the market to the
❖Pin Assignment of the Connector
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| 1 | NC |
RS232C | 2 | RX | |
5 |
| 3 | TX |
| 1 | NC | |
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| 4 | |
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| 5 | GND |
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| 6 | NC |
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| 7 | NC |
9 | 6 | 8 | NC |
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| 9 | NC |
❖ RS232C Physical Specification
Cable | |
Connector | |
| (Female type) |
Baud rate | 9600bps |
Data bits | 8 bits |
Parity | None |
Stop bit | 1 bit |
Flow control | None |
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❖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] | [0] | [5] | [3] | CR code |
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32h | 30h | 35h | 33h | 0dh |
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| 5 byte |
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Example 2: T.SIZE (Code 20 104 08)
[2] | [0] | [1] | [0] | [4] | [0] | [8] | CR code |
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32h | 30h | 31h | 30h | 34h | 30h | 38h | 0dh |
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| 8 byte |
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The unit can identify following commands on next page.
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