Agilent Technologies OmniBER OTN Series Performance Verification Manual page 24

Verification.book Page 21 Monday, January 19, 2004 1:40 PM
OmniBER OTN
Verification Manual
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DS1
Clock
OUT
7 Setup the test set settings as follows:
Tx/Rx to COUPLED mode.
SIGNAL to DS1 rate
PAYLOAD TYPE to ESF UNSTRUCTURED
PATTERN to ALL ONES
Set the Transmitter CLOCK to EXTERNAL 10 MHz REF
This ensures the test set transmitter generates a DS1 signal locked to the
NO TE
external 10 MHz reference signal, e.g. in-house standard. The signal is
looped to the test set receiver to take note of the receiver frequency
measurement accuracy/error.
8 Check there are no errors or alarms indicated by the test set
receiver.
If the test set CLOCK LOSS LED is ON check the external reference signal.
NO TE
External
10 MHz Reference
to Clock Timing I/P
DSn Test Set (37718C with Optn 012)
Bantam to Bantam Cable
1
Performance Tests
Loop DS1
Tx/Rx
OUT/IN
Input
to DS1 Data
step 10
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