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Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-08
Chapter 3 Overview: Cisco 7600 Series Router Shared Port Adapters
1-Port OC-48c/STM-16 POS SPA Overview
1-Port OC-48c/STM-16 POS SPA Interface Specifications
The framer processes incoming and outgoing SONET or SDH frames. The framer operates at
OC-48c/STM-64 line rates (9.95 Gbps).
Packet data is transported with a user-configured encapsulation (such as Point-to-Point Protocol [PPP])
and is mapped into the STS-48/STM-64 frame.
The 1-Port OC-48c/STM-16 POS SPA interface is compliant with the following RFCs:
•
RFC 2615,
PPP over SONET/SDH
•
RFC 1662,
PPP in HDLC-like Framing
•
RFC 2615,
PPP over SONET/SDH
1-Port OC-48c/STM-16 POS SPA Optical Transceiver Modules, Connectors, and
Cables
The 1-Port OC-48c/STM-16 POS SPA uses a single-mode, 9.95 Gbps, OC-48 optical fiber (SONET
STS-48) optical transceiver module for SONET connection to the network.
The 1-Port OC-48c/STM-16 POS SPA supports the following type of optical transceiver module:
•
Single-mode short reach (SR) SFP module—SFP-OC48-SROC-48c/STM-16c
•
Single-mode intermediate reach (IR) SFP module—SFP-OC48-IR1OC-48c/STM-16c
•
Single-mode long reach (LR) SFP module—SFP-OC48-LR2OC-48c/STM-16c
Use a single-mode optical fiber that has a modal-field diameter of 8.7 ±0.5 microns (nominal diameter
is approximately 10/125 microns) to connect your router to a network.
Figure 3-27
shows the cable type for use with the XFP optical transceiver module on the
1-Port OC-48c/STM-16 POS SPA.
Green
On
Port is enabled by software; there is a valid SONET signal
without alarms.
Amber
On
Port is enabled by software; there is at least one alarm (LOS,
LOF, RDI, and so on).
Blinking
Indicates SRP mode mismatch alarm.
ACTIVE
Off
Off
Port is not enabled by software.
Green
On
Port is enabled by software; loopback is off.
Amber
On
Port is enabled by software; loopback is on.
STATUS
Off
Off
SPA power off.
Green
On
SPA is ready and operational.
Amber
On
SPA power is on and good; SPA is being configured.
Table 3-14
1-Port OC-48c/STM-16 POS SPA LEDs (continued)
LED Label
Color
State
Meaning
