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INTRODUCTION
The Model NRC Network Ring card from Siemens Industry,
Inc. is a card that networks multiple FireFinder-XLS systems
together in a Class X (Style 7) ring. The NRC can also be
configured for Class B (Style 4) operation in systems where
a ring is not required, as an alternative to the NIC-C card.
It provides communication between its host FireFinder-XLS
system and other FireFinder-XLS systems on an XNET network.
It replaces the NIC-C when a ring connection is needed.
The NRC can also be used to connect an NCCNT-G to the
XNET network. In this configuration, all events occurring on
the FireFinder-XLS network are displayed at the NCCNT-G.
One NRC is required in each FireFinder-XLS system on the
network. This NRC must reside in the same enclosure as the
PMI/PMI-2.
The NRC supervises the network to ensure proper opera-
tion. Any faults that are detected by the NRC are reported to
the PMI/PMI-2 for annunciation. In addition, the NRC has
diagnostic LEDs that indicate which faults have been found.
The NRC performs ground fault detection on its outgoing
ring port.
Features
The NRC isolates faults to the individual link in trouble. When
wired for Class X (Style 7), network ring communication
continues unaffected.
An RJ-12 monitor jack is included for connection of XNET
diagnostic tools. In addition, RJ-45 and USB jacks are
included for firmware download. These jacks are located on
the front bezel.
Network Ring Card
Installation Instructions
Model NRC
NRC
RESET
POWER
CARD FAIL
TROUBLE
MONITOR
PORT
ETHERNET
USB
Figure 1
NRC Network Ring Card
A6V10322639_b_en_--
