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Updated:March 13, 2015
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To meet the continual need for increased router features and performance, Cisco Systems® introduces its newest packet-over-SONET (POS) port adapter, the Cisco® 2-Port OC-3/STM-1 POS Port Adapter. The 2-Port OC-3/STM-1 POS Port Adapter is ideal for service providers or large enterprises that need to deploy multiple ports of OC-3/STM-1 connectivity or a single OC-3/STM-1 port with redundancy and failover support.
The 2-Port OC-3/STM-1 POS Port Adapter (Figure 1) combines superior performance and an innovative design to provide the following benefits:
• Dual-port, line-rate performance
• Automatic protection switching (APS) failover between ports
• Modular, pluggable optics (Three types are available: multimode fiber, short range [MM]; single-mode fiber, intermediate range [SMIR]; and single-mode fiber, long range [SMLR])
Cisco 2-Port OC-3/STM-1 POS Port Adapter
Features and Benefits
Table 1 describes the features and benefits of the Cisco 2-Port OC-3/STM-1 POS Port Adapter.
Table 1. Features and Benefits of the Cisco 2-Port OC-3/STM-1 POS Port Adapter
Dual port connectivity
Greater per-slot density for Cisco platforms using port adapter technology (for example, on the Cisco 7200 or Cisco 7400 Series)
Depending on processing engine, provides line-rate bidirectional performance across both ports*
Provides failover protection between POS ports and/or port adapters
Modular Small Form-Factor Pluggable (SFP) optics
Greater flexibility in deployment and sparing; allows for mixed optics on a single port adapter
* Performance constrained only by processing engine
The 2-Port OC-3/STM-1 POS Port Adapter offers support for two modular SFP optics. Figure 2 illustrates these ports.
Cisco 2-Port OC-3/STM-1 POS Port Adapter Modular Optics
The 2-Port OC-3/STM-1 POS Port Adapter supports two ports of any of the following SFP optics: multimode (MM), single-mode fiber intermediate range (IR), and single-mode fiber long range (LR). Two different module types may be mixed in the same port adapter. The Product Ordering section of this document provides product part numbers for the SFPs used with the 2-Port OC-3/STM-1 POS Port Adapter.
Chassis and Processors
The Cisco 2-Port OC-3/STM-1 POS Port Adapter is supported on the platforms and processors indicated in Table 2.
Table 2. Chassis and Processor Compatibility
Cisco 7204VXR, 7206VXR, 7301
NPE-G1, NPE-400, NSE-1
NSE-100 and NPE-G100
Cisco 7505, 7507, 7513
VIP6-80, VIP4-80; RSP 16, RSP 8
FlexWan and the Enhanced FlexWan
The 2-Port OC-3/STM-1 POS Port Adapter interoperates with all port adapters that are available for order (as of January 2003) with the Cisco 7200VXR, 7301, 7304, 7500, and 7600 routers.
The 2-Port OC-3/STM-1 POS Port Adapter is supported in Cisco IOS
® Software Release 12.2(13)ZE, 12.3, 12.3T, 12.2S(RLS3), 12.0(27)S, and later. Consult your Cisco representative for more details.
The primary features of the 2-Port OC-3/STM-1 POS Port Adapter are described in this section.
Hardware and Software Features
• Single-wide port adapter form factor
• Two concatenated OC-3/STM-1 ports
• Line-rate performance
• Online insertion and removal (OIR)
• Modular optics supporting single mode (intermediate and long reach) and multimode
• Weight: Approximately 14 oz
• Dimensions (H x W x D): Approximately 1 in. x 6 5/8 in. x 5 _ in. (body only)
• Approximately 1 in. x 6 5/8 in. x 7 in. (overall)
OC-3/STM-1 POS SFP, multimode fiber, short range (MM)
OC-3/STM-1 POS SFP, single-mode fiber, intermediate range (SMI)
OC-3/STM-1 POS SFP, single-mode fiber, long range (SML)
Service and Support
Cisco Systems offers a wide range of service and support options for its customers. More information about Cisco service and support programs and benefits can be found at: