CMC 353 Reference Manual
32
5.2 Connections on the Back Panel
Figure 5-5:
Rear view of
CMC 353
5.2.1 Ethernet Ports ETH1 and ETH2
The two CMC 353 PoE (Power over Ethernet) ports ETH1 and ETH2 are
standard 10/100Base-TX (twisted pair) Ethernet ports. They support auto
crossing (auto MDI/MDIX). This means you can use a standard cable or a
cross-over Ethernet patch cable.
Since the CMC 353 can be controlled over a network, any distance between
the controlling computer and the test set is possible. This enables direct
remote control of the CMC 353, e.g., for end-to-end testing.
The Ethernet ports also provide the basis for the processing of substation
protocols according to the IEC 61850 standard. They allow flexible
configurations, e.g., for separation of data traffic from different network
segments or segregation of substation protocol data and test set control
commands.
The green LED indicates a link connection to a PC or a network. The yellow
LED indicates active traffic (receiving or transmitting) on the cable.
Power supply and
fuse T12.5 AH
Fans
power supply
Status LEDs A & B and
"Associate" button
*) For example to connect to low resistance grounding bars.
SELV interfaces
"ext. Interf." and
“LLout1-6”
Ethernet ports
ETH1 & ETH2
and "!" button
Fan current and
voltage outputs
4 mm/0.16 " socket for
additional
PE connection
*)
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