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Operating Basics: Functional Overview
OTS9100 User Manual 2-9
Clock Trigger
The Clock Trigger card provides the reference clock sources
for the transmitter and receiver functions of the 10 Gb/s
SDH/SONET module.
Figure 2-6 shows the Clock Trigger card front panel.
Module OK
The Module OK LED should be green while the instrument is
running. On power up, the LED first lights red, then will switch
to green when the system has finished initializing.
The LED will flash YELLOW if the clock’s multiplier can not
lock to the selected reference input. This condition occurs when
the input clock is not within specified frequency range.
Note: If the LED flashes Yellow, the 10 GHz input clock is
missing or out of range. If the LED remains red after the
system has finished initializing, call Tektronix for service.
155 MHz EXTERNAL CLOCK IN
The External Clock Input accepts a 155 MHz clock signal which
can be used to offset the transmit signal. The input has an SMA
connector and 50 Ohms termination.
10 GHz TRIG OUT
The 10 GHz Trigger Output provides a bit-rate signal that may
be used for triggering an oscilloscope to capture the 10 Gb/s
Output signal. The output has an SMA connector and requires
50 Ohms termination for signal integrity.
Rx CLOCK IN
The Rx Clock Input provides signal interconnection between the
module cards. This input must be connected to the Rx Clock
Output found on the Receive card of the OTS9100 module using
the coax cable provided.
Figure 2-6:
Clock Trigger Front
Panel