Connections and Interfaces
35
TCP/IP. The TCP/IP settings are done via the Test Set Association and
Configuration component included in the Test Universe software.
The CMC 353 can either be set to static IP addresses or use DHCP
(Dynamic Host Configuration Protocol) and AutoIP/APIPA (Automatic
Private IP Addressing).
Additionally there is a special DHCP server integrated in the CMC 353 to
serve IP addresses only for that computer the OMICRON Test Universe
software is running on. Note that this will only take place when there is no
DHCP server in the network. If there is DHCP server in the network, the
DHCP feature of the CMC 353 remains inactive.
If the IP settings conflict with IP settings of other devices in the network, it is
possible to reset the test set to factory defaults (DHCP and AutoIP) by
pressing the "Associate" button at the rear of the test set while powering up
the test set (refer to "Associate Button" on page 33).
Security / Firewall Settings
To automatically detect and set the IP configuration of CMC 353 test sets in
the network, IP-multicasting is used by the Test Universe software.
Therefore a firewall program has to be configured to allow for this
communication in addition to allow for DCOM communication. For the
Microsoft Windows Firewall in Windows XP SP2 (or later) the configuration
of the firewall is done automatically during installation of the OMICRON
Test Universe.
The software component on the PC which automatically detects test sets on
the network (OMFind.exe) has to be allowed for an inbound connection on
port 4987 for UDP. The software component on the PC which controls the
test sets (CMEngAl.exe) has to be allowed for DCOM communication over
TCP/IP.
Network Troubleshooting
For instructions to help you to incorporate network-capable CMC test sets
into a computer network, please refer to the manual "Network-based CMC
Test Sets". This manual is provided in PDF format. It is available on your
hard disk at installation folder\Test Universe\Doc\.
Alternatively, start the Test Universe Help from the OMICRON 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 Read Me First. In this topic
you find a direct link to "Network-based CMC Test Sets". To open the
manual, just click the link.
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