Oracle Communications EAGLE (Software)
 

PLA-Support>Sun Systems>CommsGBU>Global Signaling Solutions>SN-SND: Tekelec Eagle 5
 

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Goal

Solution

Created from <SR 3-12342087831>

Applies to:

Goal

System have E1 flow, so into system must have internal clock generator.
How can we measure stability of internal clock generator? To which connectors should we connect measurement equipment?
How is it possible to check (and measure) the SYNC signal from the Eagle GTI-CLOCK?
How to measure "Holdover Clock".
how can we measure SYNC signal from the Eagle GTI-CLOCK?

Solution

Please refer to customer documentation:
Hardware Reference E58716 Revision 1, January 2015 >> Page 125 (Holdover Clock)
You can download the customer documentation for Eagle from following download link:
http://docs.oracle.com/en/industries/communications/eagle/index.html


GTI Clock is provided by TDM-GTI (TDM Global Timing Interface) cards.
TDM-GTI cards get this clock from an external source.
The clock is distributed from Control Shelf Backplane to rest of the system through CLK OUT connectors at designated points.
You can see rest of details in customer documentation >> Installation Manual >> System Clock Connectors
It provides the pin diagram as well which will help you identify the output signal pin.
You can use a oscilloscope to measure the clock output at designated pins.

For pin diagrams; please look out for following tables in Installation Manual
Table 72: Clock A In Extension Shelf Connector..........................................................................360
Table 73: Clock A Out Extension Shelf Connector.......................................................................361
Table 74: Clock B In Extension Shelf Connector...........................................................................362
Table 75: Clock B Out Extension Shelf Connector........................................................................363

You do not need to disconnect any cable. The clock cables start from control shelf and move to next extension shelf. Just move to last extension shelf and us its CLK OUT connector to measure the signal.
For finding the correct backplane connector in Extension shelf; check following diagrams for Extension Shelf Backplane in Hardware Manual:
Figure 18: Extension Shelf Backplane ID (P/N 850-0356-03)........................................................57
Figure 19: Extension Shelf Backplane ID (P/N 850-0356-04/06).................................................58

you will be able to see the clock signal on any of the 56KHz pins. This will prove that there is clock signal being generated by Eagle.
How this is then transformed to internal cards; that is internal to Eagle and you wont be able to measure that.

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