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3-205

Performance Tests

Internal SONET Transmitter Clock (Option 120)

3. Press and set

up the display as shown opposite.

4. Make the following key sequence on

the HP 37717C to obtain the special

display.

Press ; ; ; ;

;; ; . .

Press until

appears in the softkey menu.

Press and set up the

display as shown opposite.

CAUTION When using the display, ONLY modify the STM-1 TEST

PATTERN. Altering other parameters can damage instrument ﬁrmware - exit this

display after setup to eliminate any possibility of accidental modiﬁcation.

5. Adjust the Frequency Counter Trigger Level to obtain a stable reading and ensure

that the Frequency Counter reads between 77.759650 MHz and 77.760350 MHz.

6. Disconnect all the test equipment.

TRANSMIT

SONET

MODULE DEBUG

OTHER

MODULE DEBUG

HP 37717C Calibration Manual

Other manuals for HP 37717C