Cisco ASR1004 - ASR 1004 Modular Expansion Base - 2-Port and 4-Port OC-3 C;Stm-1 POS SPA Interface Specifications; 2-Port and 4-Port OC-3 C;Stm-1 POS SPA Optical Transceiver Modules and Cables

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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-12
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers SPAs
2-Port, 4-Port, and 8-Port OC-3c/STM-1 POS SPA Overview
Table 3-22 describes the 2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs.
2-Port and 4-Port OC-3c/STM-1 POS SPA Interface Specifications
The framer processes incoming and outgoing SONET or SDH frames. The framer operates at
OC-3c/STM-1 line rates (155.52 Mbps).
Packet data is transported with a user-configured encapsulation (such as Point-to-Point Protocol [PPP]),
and is mapped into the STS-3c/STM-1 frame.
The 2-Port and 4-Port OC-3c/STM-1 POS 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
2-Port and 4-Port OC-3c/STM-1 POS SPA Optical Transceiver Modules and
Cables
The 2-Port and 4-Port OC-3c/STM-1 POS 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
connection (see Figure 3-23).
Cisco qualifies the optics that are approved for use with its SPAs. The 2-Port and 4-Port OC-3c/STM-1
POS SPA 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
• Long-reach (LR) SFP module (80 km)—SFP-OC3-LR2
Table 3-22 2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs
LED Label Color State Meaning
C/A Off Off SONET controller is shut down.
Green On Port is enabled by software, and there is a valid SONET signal
without any alarms.
Amber On Port is enabled by software, and there is at least one alarm.
A/L Off Off Interface is shut down.
Green On Port is enabled by software, and loopback is off.
Amber On Port is enabled by software, and loopback is on.
STATUS 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.