user manual
Table Of Contents
- Cisco ONS 15454 SDH Reference Manual
- Contents
- About this Guide
- Shelf and FMEC Hardware
- Common Control Cards
- Electrical Cards
- Optical Cards
- Ethernet Cards
- Storage Access Networking Cards
- Card Protection
- Cisco Transport Controller Operation
- Security and Timing
- Circuits and Tunnels
- SDH Topologies and Upgrades
- CTC Network Connectivity
- Alarm Monitoring and Management
- Ethernet Operation
- Hardware Specifications
- A.1 Shelf Specifications
- A.2 SFP Specifications
- A.3 General Card Specifications
- A.4 Common Control Card Specifications
- A.5 Electrical Card and FMEC Specifications
- A.5.1 E1-N-14 Card Specifications
- A.5.2 E1-42 Card Specifications
- A.5.3 E3-12 Card Specifications
- A.5.4 DS3i-N-12 Card Specifications
- A.5.5 STM1E-12 Card Specifications
- A.5.6 BLANK Card
- A.5.7 FMEC-E1 Specifications
- A.5.8 FMEC-DS1/E1 Card Specifications
- A.5.9 FMEC E1-120NP Card Specifications
- A.5.10 FMEC E1-120PROA Card Specifications
- A.5.11 FMEC E1-120PROB Card Specifications
- A.5.12 E1-75/120 Impedance Conversion Panel Specifications
- A.5.13 FMEC-E3/DS3 Card Specifications
- A.5.14 FMEC STM1E 1:1 Card Specifications
- A.5.15 FMEC-BLANK Card Specifications
- A.5.16 MIC-A/P Card Specifications
- A.5.17 MIC-C/T/P Card Specifications
- A.6 Optical Card Specifications
- A.6.1 OC3 IR 4/STM1 SH 1310 Card Specifications
- A.6.2 OC3 IR/STM1 SH 1310-8 Card Specifications
- A.6.3 OC12 IR/STM4 SH 1310 Card Specifications
- A.6.4 OC12 LR/STM4 LH 1310 Card Specifications
- A.6.5 OC12 LR/STM4 LH 1550 Card Specifications
- A.6.6 OC12 IR/STM4 SH 1310-4 Card Specifications
- A.6.7 OC48 IR/STM16 SH AS 1310 Card Specifications
- A.6.8 OC48 LR/STM16 LH AS 1550 Card Specifications
- A.6.9 OC48 ELR/STM16 EH 100 GHz Card Specifications
- A.6.10 OC192 SR/STM64 IO 1310 Card Specifications
- A.6.11 OC192 IR/STM64 SH 1550 Card Specifications
- A.6.12 OC192 LR/STM64 LH 1550 Card Specifications
- A.6.13 OC192 LR/STM64 LH ITU 15xx.xx Card Specifications
- A.7 Ethernet Card Specifications
- A.8 Storage Access Networking Card Specifications
- Administrative and Service States
- Network Element Defaults
- Index

11-16
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter 11 SDH Topologies and Upgrades
11.3 Subnetwork Connection Protection
Figure 11-15 shows a common SNCP ring application. STM-1 path circuits provide remote switch
connectivity to a host V5.x switch. In the example, each remote switch requires eight E-1s to return to
the host switch. Figure 11-16 on page 11-17 and Figure 11-17 on page 11-17 show the shelf layout for
each node in the example.
Figure 11-15 STM-1 SNCP Ring
Node A has four E1-14 cards to provide 42 active E-1 ports. The other sites only require two E1-14 cards
to carry the eight E-1s to and from the remote switch. You can use the other half of each ONS 15454 SDH
shelf assembly to provide support for a second or third ring to other existing or planned remote sites.
In this sample STM-1 SNCP ring, Node A contains four E1-14 cards and two STM-1 cards. Six free slots
are available, which you can provision with cards or leave empty.
Note Fill unused card slots with a blank faceplate (Cisco P/N 15454E-BLANK). The blank faceplate ensures
proper airflow when operating the ONS 15454 SDH.
Figure 11-16 shows the shelf setup for this sample configuration.
8 E-1s
8 E-1s
8 E-1s
V5.x
Switch
ONS 15454 SDH
Node A
ONS 15454 SDH
Node B
ONS 15454 SDH
Node C
ONS 15454 SDH
Node D
= Fiber 1
= Fiber 2
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