Appendix C: The meaning of some abbreviations
Letters | Meaning | Letters | Meaning |
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D | 720*576(PAL)/720*480(NTSC) | H | 720*288(PAL)/720*240(NTSC) |
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C | 360*288(PAL)/720*240(NTSC) | NT | A network event |
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U | Unlock | L | lock |
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MD | Motion detection | SD | Sensor detection |
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PW | An event of power on occurred | VL | Video loss |
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AL | Alarm | DB | The data base recurred or united |
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HD | An event concerning HDD occurred | TM | Time change |
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SY | An event of system setup or system | FL | A file was created or deleted |
| reset |
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DVR | Digital video recorder | DEL | File was deleted |
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