Data Sheet
Cisco OC-3/STM-1 Packet-over-SONET/SDH Line Card for Cisco 12000 Series Routers
The Cisco OC-3/STM-1 Packet-over-SONET/SDH Line Card is a high-capacity, high-performance interface that is ideal for edge feature support and customer access applications. The four-port OC-3/STM-1 card may be ordered with multimode, single mode intermediate reach, and single mode long reach optics enabling customers to connect directly to fiber or traditional SONET/SDH solutions.
Figure 1 Cisco OC-3/STM-1 Packet-over-SONET/SDH Line Card

Table 1 Feature Highlights
Feature | Description |
---|---|
Port Density | |
Edge Support | |
Cisco IOS® | |
Optics |
Multimode, single intermediate reach, and single mode long reach |
Cost Per Bit |
Feature Summary
Packet Layer Support
- Multiple virtual output queues, eliminating head-of-line blocking
- 512-KB burst buffers, which smooth out the arriving packet bursts
- 64 MB/64 MB packet buffer memory for Transmission Control Protocol (TCP) goodput
- Configurable with up to 256 MB of code and route table memory
- A Cisco Express Forwarding (CEF) table that can accommodate up to one million forwarding entries
- Application-specific integrated circuit (ASIC)-based queuing
- Class of service (CoS) support
- IP-based congestion management
SONET/SDH Layer
- Standards compliant SONET/SDH interface
- Alarm processing
-
- Loss of Signal (LOS), Loss of Frame (LOF), Line Alarm Indicator Signal (LAIS), Path Alarm Indicator Signal (PAIS), Loss of Pointer (LOP), Line Remote Defect Indicator (LRDI), Path Remote Defect Indicator (PRDI), Signal Failure (SF), Signal Degrade (SD), Line Remote Error Indicator (Line FEBE), Path Remote Error Indicator (Path FEBE)
- Performance monitoring
- Synchronization
- Protection switching
- Local (Diagnostic) and line (Network) loopback
- Payload mapping
Software Features
Specifications
Physical
Environmental
Regulatory Compliance
SONET/SDH
Safety
EMI
Immunity
NEBS
ETSI
LEDs
Connector
Encapsulation
Network Management
System-Level Requirements
Table 2 Optical Power Budget Packet over SONET/SDH Cisco 12000 OC-3/STM-1 Optics
Parameter | Multimode Fiber 1261-1360 nm | Intermediate Reach 1261-1360 nm IR-1 | Long Reach 1280-1335 nm LR-1 |
---|---|---|---|
Line Rate | |||
Connector Type | |||
Launch Power (Max.) | |||
Launch Power (Min.) | |||
Receiver Power (Max) | |||
Receiver Power (Min.) | |||
Optical Path Power Penalty | |||
Power Budget | |||
Maximum Distance1 |
1Worst-case scenario considering fiber, connectors, patch panel, and splices. |
Note: a typical single-mode optical cable has a transmission loss of 0.4-0.5 dB/km at the 1310 nm region. The splicing loss will be 0.2-0.3 dB each, and splicing will be made at every one to three kilometers (conduit) or two to five kilometers (direct burial).
Table 3 Product Availability and Part Numbers
Product Descriptions | Part Number | Availability |
---|---|---|
Four Port OC-3/STM-1 SONET/SDH Multimode LC with SC Connector | ||
Four Port OC-3/STM-1 SONET/SDH Single-Mode IR LC with SC Connector | ||
Four Port OC-3/STM-1 SONET/SDH Long Reach LC with SC Connector |
Route Table Memory | Packet Buffer Memory | ||
---|---|---|---|
Product Number | Description | Product Number | Description |
For additional information, please visit our Web site at http://www.cisco.com/warp/public/cc/cisco/mkt/core/12000
1Post initial FCS release