Artel DigiLink DLC150E, Инструкция по установке и эксплуатации

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12 DLC150E Function Module Installation and Operations Manual
DLC150E Function Module
Table 4. DIP Switch SW5 Settings
Function Selected Operation
Position
S1 S2 S3 S4 S5 S6 S7 S8
Reserved N/A (must be ON) - - - - - -
ON
EMS Override Enabled: DL Manager can change
the DLC150E module
configuration. - - - - - - - ON
Disabled: DL Manager cannot
change the DLC150E module
configuration.
1
- - - - - - - OFF
1. If the module is operating in EMS Override mode, as indicated by a green OK LED on the front panel,
then the EMS Override DIP switch has no effect until you use DL Manager to take the module out of
override mode and set it to local mode (see the DL Manager Setup and Operations Guide ).
Configuring Rotary Switch SW3
Rotary switch SW3 (see Figure 6) controls the peak audio level that can be handled without clipping. The peak
audio level is referred to as 0 dB Full Scale (0dBFS). The rotary switch is calibrated with the input terminated in
600 Ohms.
Figure 6. DLC150E Configuration Rotary Switch SW3
This section contains the following topics:
• Understanding 0 dBFS (page 12)
• Understanding Rotary Switch SW3 Configuration Options (page 13)
Understanding 0 dBFS
When analog audio is converted to digital, the audio is represented by a series of binary values. The highest
signal that can be represented occurs when the values are either all zeros or all ones. Attempting to exceed
these values causes the audio waveform to be clipped and distorted. The maximum level is called Full-Scale
and all audio levels can be described as levels below the full-scale value. If the signal is just at full scale, it is
called 0 dBFS. A normal operating level might be -10 dBFS or 10 dB below clipping.
(Continued)