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Overview: Cisco ASR 9000 Series Router Shared Port Adapters
LED Label
A/L
STATUS
8-Port OC12/STM4 SPA Interface Specifications
The framer processes incoming and outgoing SONET or SDH frames. The framer operates at OC-12 line
rates (622.08 Mbps). Packet data is transported with a user-configured encapsulation (such as Point-to-Point
Protocol [PPP]) and is mapped into the Layer 2 frame.
The 8-Port OC12/STM4 SPA interface complies with the following RFCs:
• RFC 1662, PPP in HDLC-like Framing
• RFC 2427, Multiprotocol Interconnect over Frame Relay
• RFC 2615, PPP over SONET/SDH
8-Port OC12/STM4 SPA Optical Transceiver Modules and Cables
The 8-Port OC12/STM4 SPA uses a small form-factor pluggable (SFP) optical transceiver module installed
in each port for SONET and SDH single-mode and multimode optical fiber connections (see the below figure).
Cisco Systems qualifies the optics that are approved for use with its SPAs. The following OC-12 optical
transceiver modules are supported on the 8-Port OC12/STM4 SPA :
• 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
• Long-reach (LR) SFP module (80 km)—SFP-OC12-LR2
Color
State
Meaning
Interface is shut down.
Off
Off
Green
On
Port is enabled by software, and loopback is off.
Amber
On
Port is enabled by software, and loopback is on.
Off
Off
SPA power is off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and good, and the SPA is being configured.
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
8-Port OC12/STM4 SPA Interface Specifications
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