Tektronix 071-0855-05 user manual Transmit Generation, Tx Event OUT, Transmit Front Panel

Operating Basics: Functional Overview

Transmit Generation

The Transmit card of the OTS9100 module contains all of the transmitter functionality for the 10Gb/s SDH/SONET module.

Figure 2-5 shows the Transmit 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 one or more internal clock circuits can not lock to the 10GHz clock 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.

Tx EVENT OUT

The Tx Event Output is user activated and provides an active HIGH for each alarm or error condition generated. The output will provide a single pulse for each frame containing errors. It can be used as a means of triggering an oscilloscope or other test equipment. The output has an SMA connector and requires 50 Ohms termination for signal integrity.

F-SYNC OUT

The Frame Synchronization Output provides a signal that is asserted to indicate the start of a frame. It may be used as a means of triggering an oscilloscope to capture the 10Gb/s Optical Output signal. The output has an SMA connector and requires 50 Ohms termination for signal integrity.

Figure 2-5:

Transmit Front Panel

OTS9100 User Manual 2-7