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Overview: Cisco ASR 9000 Series Router Shared Port Adapters
LED Label
ACT
STATUS
STATUS LED is per
SPA.
2-Port Channelized OC-12/DS0 SPA Interface Specifications
The framer processes incoming and outgoing SONET frames. The framer operates at OC-12c/STM-4 line
rates (622.08 Mbps). Packet data is transported with a user-configured encapsulation (such as Point-to-Point
Protocol [PPP]) and mapped into the STS-12c/STM-4 frame. The main operational mode of the framer is
OC-12, where each one of the 12 Paths can carry a DS3 and each DS3 can carry 28 DS1s.
The 2-Port Channelized OC-12/DS0 SPA interface is compliant with ANSI and Telco standards.
2-Port Channelized OC-12/DS0 SPA SFP Optical Transceiver Modules and
Cables
The 2-Port Channelized OC-12/DS0 SPA uses a small form-factor pluggable (SFP) optical transceiver module
installed in each port for SONET single-mode and multimode optical fiber connection. (See the following
figure.)
Cisco Systems qualifies the optics that are approved for use with its SPAs. The 2-Port Channelized OC-12/DS0
SPA 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
Color
State
Meaning
Port is not enabled by software.
Off
Off
Green
On
Port is enabled by software, loopback is off.
Amber
On
Port is enabled by software, loopback is on.
Off
Off
SPA power is off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and SPA is being configured.
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
2-Port Channelized OC-12/DS0 SPA Interface Specifications
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