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Verification.book Page 25 Monday, January 19, 2004 1:40 PM
Verification Manual
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Equipment Required
Frequency Counter
DSn Test Set
Bantam/Bantam Cables (2)
75/50 ohm Matching Pad
Bal/Unbal Converter
For accuracy required the counter MUST have high stability Internal Timebase
NO TE
option or be externally referenced to an in-house Standard.
Procedure
(External 2M Clock as Reference)
1 Press <Menu>, choose System > Stored Settings then press
<Select>. Select Default the Recall.
2 Press <Menu>, choose Tx/Rx > Transmitter Settings >
Physical then press <Select>. Set the Signal Mode to SDH.
Now set Clock Source to External, Format to 2Mb/s Clock.
3 Connect the OmniBER OTN's 2 MHz Clock Out port to the
Frequency Counter Input using a 75/50 Ω matching pad, set
the input impedance to 50 Ω . Alternatively, a 75 Ω termination
can be used with the input impedance set to 1M Ω .
Connect the Counter rear panel 10 MHz Reference Output to
the PDH/DSn test set external 10M CLOCK input port.
Performance Tests
Agilent 53181A Option 010,015 (see Note)
Agilent 37718C with Option 012
Agilent 15670A
Agilent E2629A
Agilent 15508B
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