Siemens Industry, Inc.
Building Technologies Division
5
A6V10322639_b_en_--
WIRING OF NRC TO FIBER MODULES FN2006 AND FN2007
NRC Class B (Style 4) Wiring
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DO NOT USE
DO NOT USE
DO NOT USE
DO NOT USE
ONE SLOT OF CC-5
FIRST NRC
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DO NOT USE
DO NOT USE
DO NOT USE
ONE SLOT OF CC-5
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DO NOT USE
DO NOT USE
DO NOT USE
ONE SLOT OF CC-5
LAST NRC
NOTES:
1. No EOLR required.
2. 22 AWG min., 12 AWG max.
3. 3300 feet max. per pair
between NRCs.
Shielded or Unshielded
twisted pair with a minimum
of 3 twists per ft.
Refer to Table 1 for NRC
cable specifications.
4. Terminate shields at one end
only.
5. Power limited to NFPA 70.
6. All wires supervised.
7. Ground fault detected at
8.5K ohms or less.
Figure 6
NRC Class B (Style 4) Network Wiring
Power B connections to the fiber module and monitoring of its trouble contacts are
not required, as the fiber modules must be installed in the same enclosure as the
power supplies that provide them power.
NRC with NCC
See the NCC-WAN IOM manual, P/N 315-049679, for information on connecting a
NCC Network Command Station to the NRC network.
See the FN2006/FN2007 Installation Instructions, P/N A6V10315048, for wiring and
fiber connections. Installation of the fiber modules in the XLS system requires one
bracket, model COM-BRK, per fiber module. The bracket is installed as described in
the installation instructions, P/N A6V10406085.
Each bracket takes up the same space as a CC-2 card cage.
The module mounting flange of the bracket is intentionally angled. Do not
Do not
Do not
Do not
Do not try to
straighten the mounting flange.
