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Revision 1.0 11
DHU500 Series - Back
SECTION 1
7. AUDIO OUT - Connect the Audio OUT to the AUDIO IN on an DVR or Monitor.
8. RS232 PORT - Connection for an RS-232 Device.
* Not available on 4-Channel DVR Model.
9. ETHERNET PORT - Connects the DVR to a router for connection to the internet. Refer to the
Instructions on Page 51 for Remote Connection.
10. NTSC/PAL SWITCH - Changes the DVR unit between NTSC and PAL modes.
11. ALARM / SENSOR BLOCK - Ports for connecting an Alarm or Sensor Device (such as a
Motion Sensor or Window/Door Sensor).
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