LEDs
The front edge of the module has two LED indicators, which show the status of the amplifier. They are
described in the following figure and table. The module is operating correctly when the Input Present
LED is lit and the Error LED is not lit.
INPUT OK LED
ERROR LED
Figure 4. ADA-8501 LEDs
Table 1. ADA-8501 Status LED Indicator Descriptions
LED
Reference
Status Description
Input
Present
Green
Indicates presence of an input signal.
Error Red
One or more of the following problems have been encountered:
1.
No Lock
– Unable to lock to the incoming signal
2.
Coding
- Bi-phase coding violation
3.
Parity
- There is a parity error
4.
CRC
- Error in the CRC calculation
5.
Validity
- The integrity of this sample is in question
2-4
•
Installation and Setup
ADA-8501 User Manual (Iss. 03)
Summary of Contents for ADA-8501
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