2. System Description
2.1
DVR Inspector. Hardware Description and Connections
The DVRi is a single channel rack mountable recorder running on a Windows platform. It is housed
in 2U high casing and encompasses a removable hard disk drive accessed via the front panel; other
hard drive options are available. All connections to the recorder are on the rear panel as shown
below, as is the on/off button for the internal power supply unit and the cooling fan outlet. The power
supply switch must be in the on (1) position for the recorder to function; it is good practice, but not
essential, to switch the internal power supply off when the recorder is not in use.
NOTE: The DVR Inspector is designed to function with the connections / settings described
in this manual. Please contact NETmc Marine Support team (see Section 5) before
attempting to connect any external equipment not described below.
Audio input:
Audio input to the DVR Inspector is either via the line in RCA sockets (e.g. from a diver comms
system) or via a dynamic microphone (see typical image below) plugged into the ¼” (6.35mm) mono
jack socket.
Frequency response: 80Hz – 12kHz
Impedance: 600
Ω
Sensitivity: -76dB @ 1kHz
¼“ (6.35mm) plug
NETmc Marine DVRi Manual rev. 5.3 May 2010
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Страница 35: ...Appendix viii Example Coabis interfacing diagrams NETmc Marine DVRi Manual rev 5 3 May 2010 35 of 43...
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