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Performance Tests
1
Verification Manual
67
5
Check the DSX-1 pulse amplitudes are between 2.4-3.6V pk.
6
Set the instrument Output Level to DS-1-LO and check that
the Pulse Output Amplitude decreases by approximately 20%
and pulse shape has slower rise/fall edges.
2 Mb/s Balanced Output Mask Tests
1
Press
<Menu>
, select
Tx/Rx > Transmitter
and set the
Signal Mode
to
PDH/DSn
. Now set the
Signal Rate
to
2Mb/s,
and
Termination
to
120 ohm (Bal)
and also set
E2621A Termination Adapter Probe to 120 ohm.
DSX-1 Negative Pulse
N O T E
The DS1-LO Pulse mask test is not applicable to step 6 and the check is
included to provide a functional confirmation of the LO selection.
Verification.book Page 67 Monday, January 19, 2004 1:40 PM
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