Agilent Technologies OmniBER OTN Series Performance Verification Manual page 32

Verification.book Page 29 Monday, January 19, 2004 1:40 PM
Verification Manual
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2.047999999 MHz and 2.048000001 MHz
17 Confirm that the OmniBER OTN is locked to the external
signal by disconnecting/re-connecting the BNC cable at the
OmniBER OTN CLOCK IN port.
(External 2M Balanced Data as Reference)
18 Change the set-up as follows. Disconnect and remove the test
set to OmniBER OTN (BNC to BNC) signal connection.
Connect a Bantam to Bantam balanced cable between the
test set data OUT port and OmniBER OTN CLOCK IN port.
(A 3 pin Siemens to Bantam adapter/cable may be required
depending on the test set's connector option)
19 Change the test set transmit TERMINATION to 120 ohm
BALANCED.
20 Check that the test set CLOCK LOSS alarm LED is not lit.
21 Adjust the frequency counter trigger level to obtain a stable
reading and check that the frequency counter reads between.
2.047999999 MHz and 2.048000001 MHz
22 Confirm that the OmniBER OTN is locked to the external
signal by disconnecting/re-connecting the BNC cable at the
OmniBER OTN CLOCK IN port.
(External DS1 Balanced Data as Reference)
23 Press <Menu>, choose Tx/Rx > Transmitter Settings >
Physical then press <Select>. Set the Signal Mode to
SONET.
Now set Clock Source to External, Format to DS1 Data.
24 Connect the test set DS1 transmit OUT port to the OmniBER
OTN Clock IN DS1 port using a Bantam cable. Connect the
OmniBER OTN's DS1 clock out port to the test set DS1
receiver IN using a Bantam cable.
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Performance Tests
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