Cisco CX-FEIP-2TX= Installation and con?guration Specifications Page 216

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5-38
Cisco ONS 15454 Installation and Operations Guide, R3.2
March 2002
Chapter 5 SONET Topologies
Subtending Rings
Figure 5-29 An ONS 15454 with multiple subtending rings
Figure 5-30 shows a UPSR subtending from a BLSR. In this example, Node 3 is the only node serving
both the BLSR and UPSR. OC-N cards in Slots 5 and 12 serve the BLSR, and OC-N cards in Slots 6 and
13 serve the UPSR.
Figure 5-30 A UPSR subtending from a BLSR
UPSR
UPSR
or BLSR
UPSR
UPSR
UPSR
or
BLSR
55302
Node 3
Node 1
Node 2
BLSR
UPSR
Node 4
55303
Slot 13
Slot 12
Slot 12
Slot 12
Slot 13
Slot 6
Slot 5
Slot 5
Slot 5
Slot 6
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