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NexLog Recorder User Manual v2.2.0
if the voltage rises above the configured setting for a period equal to or
greater than the configured TRV Hold time. Note that TRV detect is only
available for Analog boards and is only useful for audio sources that provide
this DC voltage in addition to the analog signal (such as standard analog
phone lines)
On:
Records the channel continuously. For voice, audio, or call recording, it
records regardless of input signal or voltage conditions. (This is useful if
there are periods of silence that need to be recorded, such as dead air on a
broadcast station or long periods of dead silence in a courtroom.) For screen
recordings, the recording includes when the screen saver is on. This setting
is not affected by the Activity Timeout or Inactivity Timeout parameters.
Note:
If recording Always, it can be helpful to break the recording into
smaller segments (such as 1-hour segments).
GPIO:
Uses an input signal from an optional General Purpose Input/Output
(GPIO) board to trigger recording start and stop. The pin pair that carries the
input signal is specified in GPIO Pin column. Recording starts on a high
signal and stops on a low signal. This allows a variety of external devices to
trigger recording.
Scheduled:
Uses Scheduled Recording to start and stop recording.
Script:
Records based on start/stop requests from the NexLog Recorder
itself. This is used in conjunction with custom scripts or other specialized
programming created by Eventide Customer Engineering as a contracted
professional service. This setting is not affected by the Activity Timeout or
Inactivity Timeout parameters.
Disable:
Disables recording for the channel.
Hook / Audio:
These options are used for VoIP and Digital lines. They make
start / stop decisions based on the available signaling from the data source
connected to the channel. The exact behavior is dependent on the source.
For example on an ISDN PRI Channel, this causes the recorder to take cue
based on the ISDN Call Connection messages on the line. On Some PBXs
this will use the actual hookstate of the phone, while others (which do not
provide accurate hookstate), the recorder will use combinations of lights,
button presses, etc.
Note:
Channels on T1/E1 boards may display a non-modifiable DETECT value of
Data
Channel
. When using ISDN Protocol over T1 or E1, one of the channels on the
trunk is reserved as a data channel and does not contain any voice data. The
recorder will automatically set that channel’s detect value to Data Channel and
grey out that channel on the front panel.
VOX Threshold:
This sets the trigger level for recording when Record Enable
Mode is VOX. A value between -48dB and 0dB is typical. The factory default is -
32dB. This setting is only used for Digital PBX, T1/E1, and Analog boards. For