Cisco ONS 15454 - Figure 3-8 Ds3 I-N-12 Faceplate and Block Diagram

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Cisco ONS 15454 Reference Manual, R7.0.1
OL-9217-01
Chapter 3 Electrical Cards
3.7 3.7.1 DS3i-N-12 Slots and Connectors
Figure 3-8 DS3i-N-12 Faceplate and Block Diagram
The following list summarizes the DS3i-N-12 card features:
• Provisionable framing format (M23, C-bit, or unframed)
• Autorecognition and provisioning of incoming framing
• VC-3 payload mapping as per ITU-T G.707, mapped into VC-4 and transported as STS-3c
• Idle signal (“1100”) monitoring as per Telcordia GR-499-CORE
• P-bit monitoring
• C-bit parity monitoring
• X-bit monitoring
• M-bit monitoring
• F-bit monitoring
• Far-end block error (FEBE) monitoring
• Far-end alarm and control (FEAC) status and loop code detection
• Path trace byte support with TIM-P alarm generation
134365
B
a
c
k
p
l
a
n
e
DS3
ASIC
Flash
uP bus
SDRAM
BTC
ASIC
Line
Interface
Unit #1
main DS3-m1
protect DS3-p1
Line
Interface
Unit #1
main DS3-m12
protect DS3-p12
Processor
OHP
FPGA
BERT
FPGA
FAIL
ACT/STBY
SF
DS3I- N
12