Performance Verification
48
GTS1063 and GTS1250 GBIC Test Systems Instruction Manual
a. Select the MEASURE menu and then the Measurements pop-up menu.
b. Select the Pk-Pk measurement, and then select Exit.
c.
Select Pk-Pk on the menu screen.
d. Verify that, after 32 acquisitions have completed, the Mean value of the
amplitude measurement for both the Tx DATA and Tx DATA channels is
u
300 mV and
t
600 mV. Record the value on the test record.
e.
Set the Transmit Pattern to K28.7.
f.
Set the Horizontal Size to 2 ns/div.
g. Verify that, after 32 acquisitions have completed, the Mean value of the
amplitude measurement for both Tx DATA and Tx DATA channels is
u
300 mV and
t
600 mV. Record the values on the test record.
8. Remove the SMA cables from the Tx DATA and Tx DATA outputs of the
GBIC Test System. When inputs or outputs are not in use, replace the 50
W
terminations. Connect an SMA cable between the Tx CLK output of the
GBIC Test System and the SD-22 input of the oscilloscope as shown in
Figure 18.
a. Set the Horizontal Size to 500 ps/div.
9. Verify that, after 32 acquisitions have completed, the Mean value of the
amplitude measurement is
u
300 mV and
t
600 mV. Record the value on
the test record.
Select K28.7
Tx pattern
GBIC
Tx
Rx
Tektronix
1180C or
CSA80C
Oscilloscope
Sync
GTS1250
SD-22
Ext Trig input
Tx CLK
Figure 18: Tx CLK levels
10. Remove the SMA cable from the Tx CLK outputs of the GBIC Test System.
Remove the SMA cable from the Ext Trig input of the oscilloscope. Connect
an SMA cable between the SYNC output of the GBIC Test System and a
power splitter. Connect an SMA cable from the power splitter to the SD-22
input of the oscilloscope as shown in Figure 19. Connect an SMA cable from
the power splitter to the Ext Trig input of the oscilloscope.
11. Set the Horizontal Size to 5 ns/div.
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