The 2-Port OC-3 STM-1/OC-12 STM-4 POS SPA interface complies with the following IETF RFCs:
• RFC 1662, PPP in HDLC-like Framing
• RFC 2427, Frame Relay Encapsulation
• RFC 2615, PPP over SONET/SDH
2-Port OC-3 STM-1/OC-12 STM-4 POS SPA Optical Transceiver Modules and
Cables
The 2-Port OC-3 STM-1/OC-12 STM-4 POS SPA uses an SFP optical transceiver module installed in each
port for SONET and SDH single-mode and multimode optical fiber connection (see the below figure).
Cisco Systems qualifies the optics that are approved for use with its SPAs. The 2-Port OC-3 STM-1/OC-12
STM-4 POS SPA when configured as OC-3 supports the following types of optical transceiver modules:
• Multimode (MM) SFP module—SFP-OC3-MM
• Short reach (SR) SFP module—SFP-OC3-SR
• Intermediate reach (IR) SFP module (15 km)—SFP-OC3-IR1
• Long reach (LR) SFP module (40 km)—SFP-OC3-LR1
• LR SFP module (80 km)—SFP-OC3-LR2
The 2-Port OC-3 STM-1/OC-12 STM-4 POS SPA when configured as OC-12 supports the following types
of optical transceiver modules:
• Multimode (MM) SFP module—SFP-OC12-MM
• Short reach (SR) SFP module—SFP-OC12-SR
• Intermediate reach (IR) SFP module (15 km)—SFP-OC12-IR1
• Long reach (LR) SFP module (40 km)—SFP-OC12-LR1
• LR SFP module (80 km)—SFP-OC12-LR2
Figure 42: SFP Optics Module
The SFP optical transceiver modules used with the 2-Port OC-3 STM-1/OC-12 STM-4 POS SPA configured
for OC-3 provide the following optical fiber options:
• Multimode—155.52-Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)
Use a multimode optical fiber that has a core/cladding diameter of 62.5/125 microns.
• Single-mode—155.52-Mbps, OC-3 optical fiber (SONET STS-3c or SDH STM-1)
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
52
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
2-Port OC-3 STM-1/OC-12 STM-4 POS SPA Optical Transceiver Modules and Cables
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