This section describes how to physically cable the fabric planes between each line card chassis (LCC) and fabric card chassis (FCC) in an 8+1, 8+2, or 8+4 Cisco CRS Multishelf installation using a horizontal multimodule cabling scheme.
For information about
how to cable the control network for a single FCC, see the section
Connections for a Single-FCC System in chapter
Cabling the Fabric.
S2 Fabric Card Distribution
Because there is only one FCC in an 8+1 installation, and multimodule installations support horizontal expansion, the FCC is fully loaded with 24, S2 fabric cards.
Multimodule Fabric Connectivity
The following rules
and characteristics define the requirements for positioning S2 optical
interface modules (OIMs) in the multishelf system and connecting them to the
S13 cards in the LCCs.
Each plane is supported by a set of
three S2 fabric cards for a total of 24 S2 fabric cards.
At the LCC end of a fabric cable, the
plane number is determined by the slot to which the cable is connected. The
other end of each fabric cable must connect to a set of three FCC S2 fabric
cards designated for the same plane number. See
for the entire fabric cabling plan for an 8+1, an 8+2, or an 8+4 Cisco CRS
fabric cables from an LCC to a set of three FCC S2/OIM fabric cards in an 8+1
installation, connect LCC-Rack 0 cables to J0 on all three OIM cards for the
same plane. Connect LCC-Rack 1 cables to J1 on all three OIM cards for the same
Cable Plan For Eight Line Card Chassis and One to Four Fabric Card
below for the cabling plan for each line card chassis LCC 0 through LCC 7 and a
single fabric card chassis (FCC 0), two fabric card chassis (FCC0 and FCC1),
and four fabric card chassis (FCC0, FCC1, FCC2, and FCC3), each connected with
horizontal cabling: In
below, N equals 0 through 7, corresponding to LCC0 through LCC7