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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Hardware Installation Guide
OL-14126-03
Chapter 3 Overview: Cisco ASR 1000 Series Aggregation Services Routers Shared Port Adapters
2-Port and 4-Port OC-3c/STM-1 POS SPA Overview
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
).
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
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.
Table 3-26
2-Port and 4-Port OC-3c/STM-1 POS SPA LEDs (continued)
LED Label
Color
State
Meaning