Block Diagram Of The Esf/D4 10-Output Module - Symmetricom TSG-3800 Series User Manual

Output Modules
ESF/D4 10-Output Module
Figure 7-6.

Block Diagram of the ESF/D4 10-Output Module

Each output channel consists of a driver, an output transformer and an isolation
relay. The driver converts the signals from the Frame Generator into AMI Signals,
suitable for the output. The output of the transformer goes to the relay, which
connects the signal to the output connector on the TSG-3800 Interconnect PCB.
Each output channel is monitored for proper operation. If an output fails, the
isolation relay is opened to protect the corresponding signal from the redundant
module. The OUTPUT FAULT LED on the front panel is on, and the CPU is
informed of an output failure on one of the output modules.
The shape of the output waveform is controlled by the output drivers, and by the top
three switches of S1, labeled LEN0, LEN1, and LEN2. Each switch is connected to
a corresponding pin on each of the output drivers. Depending on the settings of
these switches, the output drivers will produce the appropriate pulse shape to meet
the DSX-1 template, over a wide variety of cable types and lengths.
224 TSG-3800 User's Guide
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12778474-002-2 Revision F – March 2004