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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 ATM SPA Interface Specifications
The physical layer interface for the 1-port OC-48 ATM SPA is Optical Carrier-48 (OC-48), and the
1-port OC-48 ATM SPA is designed to comply with ATM specifications. The 1-port OC-48 ATM SPA
provides one 2.488-Gbps ATM network interface for all supported platforms.
Each 1-port OC-48 ATM SPA has one duplex LC-type receptacle that allows connection to single-mode
optical fiber.
1-Port OC-48c/STM-16 ATM SPA Cables and Connectors
Use single-mode (for intermediate-configurations) optical fiber cable to connect your router to a network
or to connect two OC-48-equipped routers back-to-back.
The SPA-OC48 accepts an SFP module with a duplex LC-type receptacle that allows connection to
single-mode optical fiber. For single-mode optical fiber connections, you can use either a duplex
LC-type cable (see
Figure 3-18
) or two simplex LC-type cables, one for transmit (TX) and one for
receive (RX).
Figure 3-18
Duplex Patch Cable with LC-Type Connectors
1-Port OC-48c/STM-16 POS SPA Overview
The 1-Port OC-48c/STM-16 POS SPA is a single-height SPA that is installed in a SIP subslot. The
1-Port OC-48c/STM-16 POS SPA provides RPR over SONET (IEEE 802.17), SRP over SONET (Cisco
Proprietary), and Packet over SONET (POS) network connectivity with a bandwidth of 9.95 Gbps.
For more information about SPA bandwidth, see the
“Bandwidth Oversubscription”
topic in this chapter.
For more information about SPAs and their compatibility with SIPs and modular optics, see the “SIP and
SPA Product Overview” chapter in this guide.
The following sections describe the 1-Port OC-48c/STM-16 POS SPA:
•
OC-3c/STM-1 POS SPA LEDs, page 3-15
•
OC-3c/STM-1 POS SPA Interface Specifications, page 3-15
•
OC-3c/STM-1 POS SPA SFP Optical Transceiver Modules and Cables, page 3-16
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RX
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