CMC 356 Reference Manual
38
Network Troubleshooting
For a complete list of ports and settings that are needed for the
communication please refer to the Troubleshooting chapter of the Getting
Started with Test Universe manual, subsection Firewall Configuration.
The Getting Started with Test Universe manual is available as PDF on
your hard disk at installation folder\Test Universe\Doc. For languages other
than English, language specific subfolders exist.
To view the manual, start the Test Universe Help from the Start Page or any
test module and navigate to the table of contents entry User Manuals (at
the beginning of the table of contents). Click Test Universe Software
Manuals. In this topic you find a direct link at "Getting Started". To view the
manual, click the link.
5.2.7 SELV Interfaces
All inputs and outputs to the SELV group (SELV = Safety Extra Low Voltage)
reference to a common neutral that is internally connected to the protective
earth (GND) of the housing.
5.2.7.1 External Interface ("ext. Interf.")
The SELV interface connector "ext. Interf." holds four additional transistor
binary outputs (Bin. out 11 - 14). Unlike regular relay outputs,
Bin. out 11 - 14 are bounce-free binary outputs (small signals) and have a
minimal reaction time.
In addition, two high frequency counter inputs for up to 100 kHz are
available for the testing of energy meters.
For more detailed information please refer to the technical data section
6.3.6, "Low-Level Binary Outputs ("ext. Interf.")" on page 56.
Meter Testing
For energy meter test applications, the "ext. Interf." grants easy connectivity.
Synchronization
Via the "ext. Interf.", the CMC 356 time base can be GPS- and IRIG-B-
synchronized. Depending on the synchronization method of your choice,
use either the CMGPS synchronization unit or the CMIRIG-B interface box.
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