Agilent Technologies OmniBER OTN Series Performance Verification Manual page 29

Verification.book Page 26 Monday, January 19, 2004 1:40 PM
1
Performance Tests
PDH/DSn Test Set/Synthesizer
2M Ref Out or
Clock Out
26
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Connect the PDH/DSn test set CLOCK REF OUT or
TRANSMIT CLOCK OUT port to the instrument's CLOCK IN
2MHz BNC port.
OmniBER OTN
4 Set the PDH/DSn test set transmitter as follows.
SIGNAL to 2 Mb/s rate
CLOCK to EXTERNAL 10 MHz REF
5 Check that the PDH/DSn test set CLOCK LOSS alarm LED is
not lit.
6 Adjust the frequency counter trigger level to obtain a stable
reading and check that the frequency counter reads between:
53181A Counter
Matching pad
and/or termination
2 MHz Clock O/P
step 9
10MHz Reference to External 10M Clock Input
2.047999999 MHz and 2.048000001 MHz.
Counter 10 MHz
Reference OUTPUT
Signal
Output
Verification Manual