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9-10
Clock Recovery Commands
TDENsity?
TDENsity?
Query
(83496A)
:CRECovery{1 | 3}:TDENsity?
Use this 83496A query with 83496A modules to return the calculated edge density of the data
signal. The edge density value is the ratio of bit transistions to bits and is returned as a num-
ber between zero and one. Changes in edge density can cause the module to lose lock. If the
edge density value is invalid, the string “9.99999E+37” is returned.
Restrictions Software revision A.04.20 and above.
Example 10 OUTPUT 707;":CRECOVERY1:TDENSITY?"
Returned Format [:CRECovery{1 | 3}:TDEN] <edge_density><NL>
Table 9-5. Signal Present Return Status vs. Receiver Number
Module Model
Receiver 1
Short Wavelength
Receiver 2
Long Wavelength
83491 0 0
83492
a
a. Only one receiver at a time can have a signal present.
1/0 1/0
83493 0 1/0
83494 0 1/0
83494 Option 103 0 1/0
83494 Option 106 0 1/0
83494 Option 107 0 1/0